.
o
a
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tiri
.SheUfish
..Ground fish
rt
1 4 15ii
COASTAL
RIVERSINVESTIGATION
@A,STA[RIVERS
INVESTIGATION
REPORT
INFORMATION
REPORT
72-1
INK}RMATION
72.1
JeIagiC fish
Spawning Fish
Flslr Surveys
Surveys in
Spawning
ln Coastal
Coastal
W a t e r s h e d s ,1971
1971
Watersheds,
o
o
Delbert G. Skeesick
Delbert
Skeesick
o
o
o
Fish Commission
Fish
Comission of
of Oregon
Oregon
Managenentand
Management
ResearchDivision
and Research
Division
o
August
August 1972
1972
)
o
TABTE
OF
TABLE
OP
COIflE1'flS
CONTENTS
o
Page No.
lb.
Page
CENER'A'L INFORMATI0N . . . I t . . . o ' ! . . . . . . r . o . . . . . r . . . ! . | . . . . . . r . . , . r r r r
GENERALINFORMATION..............S..................................
ri
of Weather
Weatheron
on the
the 1971-72
Lv9üence
Fish Survys. . ... .
lgTl-72 Spawning Fish
!::-flucnce of
uence of
Influence
of nmlan
Human Activlties
Activitieson
on 197r-72 S$wning Fish Sürvys . 3
a
o
R E S U L t Sa,
. r . . t,r o J r o . .It .t r.. .*t .o .. r .. ..i . r .
n.ouaa,
. . . . . . . . . +
. ..' ... .. t.t ... .. . .. ... ..r .
. . .. . . . . . . . . i.. .t t *s .r r.r f. * . . .. . .. t.. .. .
r . o . .......
.. f .. o.... r.,.-... -.. r.r. r.,,r,o,
f-Fall
q l ! _ CChinook
l i a g o ! ' - q gSalmon......
lpo]l..
or i. |
U O n O SaImon.......,.........,,......a......,..........-........
DaInOn..
Coho
f..
t o....
t r I o.. r l. r o+i r.....
r I r..
?...t.ri..r.....
r
Chum
@
. } . . . . . tSalmon............,.....,.................................
o|.o|...*...}......l.......t.'c!....i...t.+..15
lgflE?r$
sexCouqosition
conpgsiliq_ot
ge, Size, and Sex
of 1971
Salrnon.............
r.giiChum
ihn,!p!Up+.
......,,....
S [ n 4 [ A R Y t . ,. . ., ,DI t . . . . ., . t ,. ,. . r . ., . . . t . |, . . r a . . . .*
o
o
o
o
a
o
o
5
3
3
6
6
6
6
15
15
15
. .. ,. . . . . . .. *r -. ] . ,. . .
. . .. ...
] a*
r a.r ] . .
18
18
r . . . ,r . . ,
. . . ,.
' . r t . . . . . . . . . . . ......
t r . ,...,.,.
..*..
or.....
22
22
SUMMARY.
I I T E R A T I ' R E C I T E D . . s...a.
LITERATURECITED.
t '..... .
I
1
'......1..
APPENDIX TABLES"a
APPENDIXTABLES.
. ' ....,....,
. t . . o . r ..
. j.
r..t
t . . . t . . ..
. .
t r ...
.,....
rr....i......
r......r..
23
23
a<'
I.
FI6,IRES
LIST
OF FIGURES
IIST OF
I
i.
Per Mile
Standard
Numbersof
FaLl. Chinook
Chinook Per
Mile in
ln Standard
Average
Average Numbers
of Fall
i v e r s , 119S2-71..............
r e a s oof
952-71..r.......,....
$
Survey
rnrey A
Areas
f S
Six
ix C
Coastal
o a s t a l RRivers,
8
8
2
2
Survey
in Standard
Standard Survey
Per Mile
Mile in
Average
Nunber of
Average Number
of Coho
Coho Per
ight G
oastalR
i v e r s , 11950-71,..................
A
r e a s of
950-71.....r.tr..rr.....r'
Areas
Eight
Coastal
Rivers,
of E
L0
10
3
5
1955-71....
CaLcul.ated
CohoEscapement
into Teninile
Tennile Lakes, 1955-71....
Calculated Coho
Escapenentinto
13
13
4
4
and
in Standard and
Mile in
Ntmrbers of
of Chum
ChumPer Mile
Average Numbers
Three Coastal
Dralnages,
Auxiliary
Coastal Drainages,
Survey Areas
of Three
Auxiliary Survey
Areas of
I1
o
o
1
9 5 3 - 7 1 r. .. .. . .. ... ... ..
1953-71
S
o
o
o
e
a
o
o
Page
No.
Page No.
Pigur,eNo.
Figure
N9.
. . .. ... ... .. . . . .I o
.
. . . .
I .r ... .. . .. . .. ... '* . . .r .. .. .. ... .. . *t .t ... ... . . .. .o .t ... .. . . . -.
Chun Salmon,
Sal.mn' 1959-71......
1959-71..'...
Bay Chum
Age
Age Composition
Conposition of
of Tillamook
Tillamook Bay
17
17
2l
23.
o
TABTES
LIST
LIST OF
OF TABLES
o
Page No.
Page
No.
Table
Table No.
llo.
I1
Sunreyed
Distances Surveyed
Number of
l.liraber
Fish Surveys
Suweys and
and Distances
Spawning Fish
of Spawning
the 1971-72
Spawning
by Coastal
River Staff
Coastal River
Staff During
During the
l97l-72 Spawning
. .r .r ... ... .
. . .. ... ... .. . . . . . .r .4 .. . .. ... ... .. e.. .. . . . . . . .O.. ... . .I .t ... ... .. . . . . *l .. .t .' . .. ... . . .t .,
4
4
in
Peak Fish-Per-Mile
of Fall
Fall Chinook in
Summary
of Peak
Counts of
Stmrary of
Fish-Per-Mile Cormts
Rivers
of Coastal
Standard
Auxiliary Survey
Coastal Rivers
Standard and
and Auxiliary
Suwey Areas of
o. i.... ' r.
1 , 9 5 0 . . r . r . . . r . . . . ......
aa....................,...*....
. r.................
Since
.....
S l n c e l950....,......
7
3
3
Standard
Summary
of Peak
Counts of
Cohoin
in Standard
of Coho
Peak Fish-Per-Mile
Sumary of
Fish-Per-l-{i1e Cormts
1950,.......,.. r . ' ' ..
Survey
Areas
off C
Coastal
River s Since
Since 1950.................
oastalRivers
re a so
S u rve yA
9
9
4
4
Standard
Cohoin
of Coho
Summary
Counts of
Peak Fish-Per-Mile
ln Standard
Fish-Per-Mlle Cormts
Srnmaryof
of Peak
Tributaries
Lakes
Tennrlle
and
Auxiliary
Survey
Areas
of
Tenmile
Lakes
Tributaries
and Auxiliary Strney Areas of
r......1r....
Since
S i n c e 1950...............,................................
L950'.....
r.. c... r I or r. r r. r.. r. r. r......
12
1
2
of Coho
Coho in
in
Calculated Escapement
Egg Deposition
Escepenent and
Calculated
and Egg
Deposition of
a k e S , 11955-71...........,........................
Teinnile
T
g n m i l e LLakes,
955'71..... o.r......... r..... r. r..........
14
14
Summary
Chun in
in Standard
Peak Fish-Per-Mile
of Chum
$rmrary of
of Peak
Fish-Per-Mile Counts of
1948...
Rivers Since 1948...
Coastal Rivers
and
of Coastal
and Auxiliary
Auxiliery Survey
Suwey Areas of
16
16
Season.
Season..
a
n
o
o
2
2
S
5
6
o
7
7
8
8
O
o
flo
o
o
Composition of
Size, Sex, and
and
Bay Chum
of Tillamook
Tillamook Bay
Conposition
Chrrn by Size,
Age,
........
A
g e , 1947-71....
1947-71...o
. . . . . 3 . i . . ..
r . . !.. . ...
. . r ..
r . o o. . .....
. . . o . o..
. . ....
t . . . . ..
. . ....... .. ... ..
19
19
Runsr.r...
Tillarnook Bay
Estimated
Bay Chum
Chum Runs......
Estinated Age
Age Composition
of Tillarnook
Conposition of
20
20
o
TABTES
IIST OF
LIST
OF APPENDIX
APPENDIX TABLES
o
1
2
o
U
3
o
4
5
o
6
Sunreys
Peak
Spawning Fish
Fish Surveys
Peak Cormts
Counts on Nehalern
Nehalem River
River Spawning
..'.......
fforFall
o r F a l l Chinook
C h i n o oSince
kS i n c 1950.....
e 1 9 5 0 . . , . .................
...,a.
..........
Peak Counts on
on Ti].lamook
Peak
Bay Spawning
Spawning Fish
Fish Sunreys
Surveys
Tillamook Bay
8
9
25
25
Peak Counts on Nestucce
Fish Surveys
Sunteys
Peak
Nestucca River
River Spawning
Spawning Fish
fforPallChinookSjncel9SO.......
o r F a l L C h i n o o kS i n c e 1 9 5 0 . . . , . . ...... . ....................
.+,,..r....r.....
26
26
Sunteys
Peak Counts on Siletz
Spawning Fish
Fish Surveys
Slletz River
River Spawning
Peak
o.. r........ r
f o r F a l l , C h i n o o kS i n c g 1 9 5 2 . . . . . . . r . o . . . . . . , .
forFallChinookSincel9S2...........,...................
27
27
Suweys
Peak Counts on Yaquina River
Fish Surveys
Spawning Fish
Peak
River Spawning
Fall C
S
1950............. o....rr..re.'.....
f O t Fall
h i n O O Since
k i n C e1950..................,............
for
Chinook
28
28
Suweys
Peak Counts
River Spawning
SpawnlngFish
Fish Surveys
Counts on
on Alsea River
Peak
Fish Surveys
$pawning Fish
Suweys
Cormts on Siuslaw
Siuslaw River
River Spawning
Peak Counts
Peak
o
30
30
Suweys
Fish Surveys
Peak Counts
Spawning Fish
River Spawning
on Coqullle
Peak
Coquille River
Cor.rntson
F a l l Chinook
C h i n o o kSince
LgSz';..........'r............'....
f o r Fall
S i n c e1952...............................
for
31
31
Peak
Peak Counts on Nehalen
Nehalem River
River Spawning
Spawning Fish
Fish Surveys
Surveys
. . . .ar .a. 1.
. . . . . . ...........
Sunteys
$parvningFish
Fish Surveys
Peak Counts
River Spawning
Peak
on Wilson
Wilson River
Counts on
.. ..... I
i n c g 1950..,....................................
Coho
Since
oho S
ffor
or C
1 , 9 5 0 . . . . . i o' . r . . . . r . . r r . r . . . i '
33
33
l1
11
$unreys
Fish Surveys
River Spawning
Spawning Fish
Peak Counts
Peak
on Nestucca River
Cormts on
. r.....
. ' ' . . ' . r . . . ' ..a.....
C o h oSince
. . . . r . .............
for
S i n c e 1950...
1 9 5 0 . . . . ......
. . ' . ' r . .......
f o r Coho
34
34
L2
12
Sunreys
Spawning Fish
Peak
River Spawning
Peak Cowrts
Counts on Yaquina River
Fish Surveys
. . . ' . r . .. ' .. . ' .
for
. ..t r
. . .. ... ... ... ... .
. .......
n c g *11-e
f o r Coho
C oSince
h oS i1950.
950
. . .. r.. ... ... ... ......
..
35
35
. * . -. .
Surreys
Fish Surveys
River Spawning
Peak
Alsea River
Spawting Fish
Peak Counts on Alsea
r. r.
36
36
. . . . .. . * . . . . . . . . . . . . . . . . * . . . . . .
r .. '
37
37
1
155
Fish
Spawning Fish
Standard Spawning
Peak
Tenmile Lakes Standard
Peak Counts on Tennile
1950"........,..'....r.r.......rr..
S i n e el950...............................
f o r Coho
Surveys
S u r v e y sfor
C o h oSince
38
38
16
16
Spawning Fish
Lakes Auxllialy
Flsh
Peak
Counts on Tennile
Temnile Lakes
Auxiliary Spawning
Peak Cormts
. . .. . ... ..r ... .. ... ... ..
for
C OSince
h O S1950.
. 9.5.0 ... . o.. ... .*. .* . o
. r.r ... ... . *. . .
i n C e. 1
f O f Coho
o
o
32
32
10
10
l5
13
o
.
29
29
. . . . . . t ........................
,tr...r..'....o....o
f o r F a l l C h l n o o kS i n c e 1 9 5 2 . . ......
forFallChinookSincel952...
C o h o Since
S i n c e 1950.
f o t Coho
1 9 5 0 . ... *. ... o. ... '.. ... .. ... .., ..o.r .. ..r ... .
for
o
fl
24
24
..........
f o r F a l l C h i n o o kS i n e e 1 9 5 0 . r . , . . . . . r . . . . . .
forFallChjnookSjncelg5O...............................
f o r F a l l C h i n o o kS i n c e 1 9 5 2 . . . r . r . . . . . , r . o . . . . . . . . r . . . . . . .
forFaljChinookSincel952...............................
7
o
Page
Page No.
Table
No.
Table No.
T4
14
* . . . . . . . . . . . .
$lrveys
Spawning Fish
Fish Surveys
Peak
Counts on Beaver Creek Spawning
Peak Cotrnts
S l n c g 1950.
C o h o Since
f o r Coho
1 9 5 0 ..
. ' . .r t*. .. ... ..
for
'...
r.. ' r.........
i......
S u w e y s f o r C o h oS i n c g L 9 5 5 . . o . . . . . ' r ' . . . . | , . . . . . . , . r . . . ' r
SurveysforCohoSincel9s5...............,...............
39
39
o
tISr OF
OFAPPENDIX
(Cont.)
APPINDIX
TABIES
LIST
TABLES
(Cont..)
o
Tqlle No.
Tpble
Nq.
L7
11
r8
18
o
19
19
Ppge-Io.
Page
No.
Peak Counts
on Coos
Coos River
Corsrts on
River Spawning
SpawningFish
Fish Surveys
Suweys
Peak
C O h OSince
f o r Coho
S i n c g 1950.
1 9 5 0 ... .. .. ..... .. --.. . ... .. ... .. ... r. r.. .. ... .. ....a... r... . .r r. . . a. ... .
fox
.. .
. . . .
Peak
Peak Counts
Counts on
on CoQuille
Coquille Rlver
River Sparrning
Spawning Fish
Fish Suweys
Surveys
f o r Coho
C o h o Since
S l n c e 1950.
1 9 5 0 . ......
Lox
r . . . t . . i ....
. . r . ... .........
. . . . . . . ....
+ r . . ........
a . o . . . . .. r....
r r..
o
2L
21
a
o
j
o
o
o
o
o
42
42
Peak Cormts
on Tillamook
Tillamook Bay
Bay Auxiliary
Spanning Fish
Flsh
Peak
Counts on
Auxiliary Spawning
S u n e ys fo r C h rn Since 1960.. ....,. . .. . . . . I r . ... .. r r . . . ., .
SurveysforChumSincel960...............................
43
43
Peak Cotmts
on ilestucca
Peak
Counts o
SpawningFish
!estucca Liver
Flsh
iver Spawning
S u n e y sLox
C h u rSince
n i n c e1950.
f o r Chum
S
1 9 5 0.. .. .. ..... .. .. . . . . . .a, .. ... ...
. , . .. ..,. . a.
r . i r rata
.
Surveys
44
44
. .
22
22
4L
4].
Peak
on Tillaxnook
Tillanook Bay
Peak Cormts
Counts on
Bay $tandard
Standard Spawning
Spawning Fish
Iish
& r v e y s fox
C t r u uSince
f o r Chum
S i n c g 19SO...............................e
Surveys
1950".o.,.rrrir........qr.i......r.
2CI
20
40
40
a. .
Peak
Peak Count,s
Counts on
on ttretarts
8ay Spawning
Spaming Fish
Surveys
Fish Surveys
etarts Bay
ffor
or C
h u n Since
Chum
$ i n c e 1953.
1 9 5 3 . t. . .o ..
r r ... . .. ..
. .
. ) . . ... . . . . ? r r . r ... 'I. .*1r . r r . . I. .a
a
.
. a a . a
45
45
o
SPANNING
FISH SURVEYS
SURVEYS
SPAWNING
FISH
IN
WATERSHEDS,
t97L
WATERSHEDS, i971
COASTAL
@ASTAL
y2/
o
GBNERAI
INFONMATION
GENERAL INFORMATION
Sparmingfish
fish surveys
sunreys on
Spawning
on index areas
aroa:r of
of Oregon
Oregon coastal
coastal rivers
rivers and
and
o
tributaries are
are made
nade annually
annuaLly by
tributaries
personnel of Coastal
by personnol
Coastal Rivers
Fiivers Investigation,
Investigation,
Flsh
Comission of
Fish Commission
of Oregon.
oregon Annual
Anrnral peak
peak counts
cornts of
of spawning
sparning salmon
salnon in
ln the
the survey
suruey
afeas provide
deta for
areas
provide data
fof, computing
conputing an
an index
index of
of the
ths escapement
escqpenent into
into aa coastcoast-
o
wide "fish-per-mile"
wide
figure for
"fish-per-nileft figure
each species.
for each
species,
Trends in
abudance of
in abundance
Trends
spanning salmon
salrcn are
spawning
by comparing
are noted by
coryaring these
these data
clata over
over aa period
perlod of
years.
of years.
Ttris report
repolt presents
This
Presents
o
peak counts
peak
courts for
for 1971-72
l97l-72 and
rrrrdmakes
nakes comparisons
conparisons with
with
sinilar1 ardata
simi
data fron
from previous
previous years
years.
fire
spawningfish
The earliest
earliest spawning
fish surv€ys
were ostabllshed
surveys were
25 years
ago, and
and
established 25
years ago,
others were
wore added
addsd as
as needed
others
neededto
form a8 coastwide'sampling
to form
corxitr{i6"'srrryling program.
progran.
o
year the
the survey
survey project
year
project was
was substantially
substantiat.ly modified.
nodified.
This
This
Surveys that
Surveys
wore
that were
not representative
representative because
becauseof
not
of lack
lack of
of suitable
srritable habitat,
habitat, becane
became inaccessible
inaccessible
because of
of changing
because
changing road
mad use,
use, or
or could
could not
not be
be adequately
adequatel.ysurveyed
suryeyed for
for
o
physical reasons
reasons were
physical
rere eliminated.
elininated.
Those surveys
suryeys that
that remain
Those
renain represent
roprcsent our
our
current concept
concept of
good spar'rning
current
of good
spawning streams.
streams.
Ttre net
not result
result of
The
of eliminating
elininating
the surveys
surveys with
the
with poor
poor spawning
spa$ning gravel
gravel was
was to
to slightly
slightly raise
raise
o
the fish-perfish*per-
nile
mile counts.
counts. Statistical
Statistical analysis
analysis using
using the
the t-test
t-test for
for paired
paired observations
obsenrations
(Dixon and
(Dixon
and Massey,
Massey, 1957)
1957) indicated
indicated that
that in
in the
the cases
cases of
of fall
fall chinook,
chinook, coho
coho
and auxiliary
auxiltary chum
and
chun counts,
cornts, the
the mean
meanfish-per-mile
fish-per-nile counts
counts were
were raised
raised signifsignif-
o
tcantly
the 99%
icantly at
at the
998 level
level of
g.g5, 5.82,
of confidence
(t values
confidence(t
values were
were 8.83,
5.g2, and
and6.51,
6.51,
respectively).
respectively).
o
U
2/
O
Efuieanrk
pL 89-304
gg-A04funds.
2lzis
war/cuna
waspttatt4
partially etryported
supported bg
by PL
frmds,
o
2.
2.
Since the
valuo of
the value
of these
these surveys
surveys is
is to
to determine
detEruine trends,
Since
the next
trends, tho
o
statistical
statistical test
test was
was to
to detemine
determine if
if drcprping
dropping certain
certain of
of the
the sunrc)'e
surveys caused
caused
any change
changein
in the
the trends.
trends.
any
Linear regressions
regfessions of
of the
ths nor
flsh-per-nile
Linear
new fish-per-mile
cotmts
counts lrere
were run
run against
against the initial
initial comts
counts aad
and the
the squara
square of
of the
the correlation
correlation
o
judge any
coefficient
(Li, 1957).
coefficient was
used to
to judge
any changes
was used
changes(Li,
f957).
For chinook
94t of
of
chinook 94%
For
the variatj.ons
average could
in the
the new
could be
accounted for
the
variations in
new average
be accounted
variations
f,or by the varl.ations
in
cormts, while
coho 99%
in the
the previous
previous counts,
while for
for coho
ard for
rari99t and
for chtn
96t of
of the
the vanchum 96%
o
ability is
ls explainable
e:Elainable in
ln the
the same
sane manner.
nanner.
ability
with this
this result,
result, it
With
it appears
rypears
that dropping
dtopping some
sore of
of the
the surveys
surveys had
had no
appreclable impact
no appreciable
that
the trends.
trends.
lryact on
sr the
Prosent annual
are 27.5
27.5 niles
for fall,
Present
annual survey
survey 4lstances
distances are
miles for
fall chinook, 7.5
7.5
o
niles for
for chuniand
dtrnrand 39.0
59.0 miles
nites for
for coho.
coho.
miles
An
addittonal 17.1
An additional
l?.1 miles
of strem
d.les of
stream
are
are surueyed
surveyed in
in the
the Tennile
Tenmije Lakes
lakes systen
system to
to provide
provide the
the data base
base for
for an
an
annual estimate
population and
estimate of
of the
the population
and egg
annual
egg deposition.
deposition.
O
lhe spring
chinook
spring chinook
The
surveys were
suspendedbecarrse
the counts
cormts were
surveys
were suspended
because the
were so
meaningful trends
so low
lor no neaningfirl
tlends
were
were evident.
evident.
Index
Index areas
areas were
were often
often surnreyed
surveyed nore
more than
than mce
once to
to ensure
€nsune that
counts
that counts
o
were made
nade near
near the
peak of
the peak
were
rtm.
of the
the run.
tinlng of the
timing
the
variabitity in
the
in the
Variability
spawning migrations
nigrations between
between streams,
spawning
volume and
streans, voltrne
and duration
dtrration
flors
of flood
flood flows
of
and
and silt
silt load
load frequently
frequently caused
caused aborted surveys
suflfeys that
had to
be rescheduled
that had
to be
rescheduled
o
and occasionally
occasionally resulted
resulted in
and
in inadequate
inadequate surveys
surveys on
on sone
some standard
standard index
index
areas
areas.
lhe fall
fal.l Creek
(Alsea River)
Creek (Alsea
The
River) fall
fall chinook
chinook survey
survey was
$as the
tho only
onty survey
survey
I
that was
was retained
retained but
but not counted
that
year.
cormted this
this year.
plolonged hisn
and
Prolonged
high water and
heavy
silt loads
loads nade
it'inposslble
heavy silt
made it
impossible to
to identify
identify the
awng the
the chinook
chinook among
the
trenendorrs nu&er
coho that
that traverse
traverse this
tremendous
number of
of coho
section of
this sectiol
of stream
stream to
to the
the Fish
Fish
a
o
Cormissiontsa Fall
Commissiont
Fall Creek
Creek Hatctrery.
Hatchery.
o
3.
3.
Coastal
203 sunreys
Coastal Rivers
Rivers personnel
personnel nade
made 203
surveys enconpassing
encompassing 175
175 niles
miles
o
during
(Table 1).
the 1971-72
1971-72spawning
spawningseason
during the
1).
season(Table
The surveys
relrresent about
about
The
surveys represent
a 40%
40%decrease
decrease over
over the
year.
the effort
effort of
previous year.
a
of the
the previous
Suweys started
started on
Surveys
on
October 29,
29, 1971,
I97L, and
and continued
continued through
through January
October
Jaruary 3,
S, 1972.
!972.
o
Si.nce
1958, survey
Since 1958,
survey data
data have
have been
been exchqrged
exchanged with
with the Oregon
Oregon Gane
Game
Comnissionto
Commission
to avoid
avoid duptication
duplication of
of sone
some surleys.
sureys.
Tlre Game
GaseCommission
The
Conmission
biologists
data from
fron two
two standard
biologists provided
provided data
standard surveys
suryeys on
Nehalem River
River tribtribon Neha!.en
a
utaries'
a Coos
River tributary
Coos River
and two
utaries, one
one on
on a
tributary and
two on
on tributaries
tributaries of
of the Coquille
Coquille
River.
River.
o
of Weather
Weatlrgron
on the
the 1971-72
Influence
Fish
1g71-72Spawning
Fish Surveys
Surveys
Ipfltrenqe of
.Sp_$mi.ng
Weather
was fairly
fairly typical
tyryical during
during the
Weather was
the fall
falt of
of 1971.
1971. Freshets
Freshets were
were
spaced such
such that
that most
nost surveys
surveys were
were completed
spaced
corryleted between
betweenstorms.
storrs.
r
I
However,
However,
beginning
in December
Decenberand
and continuing
beginning in
continuing through .lanuary,
January, above
above normal rainfalt
rainfall
kept the
the streams
streamshigh
kept
high and
andturbid.
turbid.
Consequently,
sone of
of the
Consequently, some
coho surveys
sunreys
the cobo
were accomplished
accotuplished under
rnder less
less than
wore
normal
than ideal
ideal conditions,
conditions, and
and fewer
fewer than
than nornal
o
resurveys were
were possible.
resurveys
Possible,
The intense
intense storm
stom of
of early
The
January made
early January
nade further
further
surveying impractical.
surveying
inpractical,
of Human
HrmanActivities
Activities on
Influence
on 1971-72
l97l-72 Spawning
sparsningFish
Fish Surveys
sunreys
Etfluence of
o
Activities of
the Fish
of the
Fish Commission
Conrnissionand
and Oregon
Activities
OregonState University
llniversity have
have
affected
the validity
validity of
affected the
of the
the counts
counts on
on some
sotre of
of our
our standard
standard survey
areas.
sunrey areas.
The fall
fall chinook
chinook counts
cormts on
The
Alsea rivers
on the Siletz
Siletz and
and Alsea
rivors have
have been
been
o
affected by
by the
the activities
activities of
affected
of the
Fish Commission.
the Fish
Corurission. Ladders
and large
Laddersand
large
returns of
coho to
returns
of coho
to the
the hatcheries have
have made
made it
it iurpossible
impossible to
nake usable
to make
usa,ble
index counts
cornrts in
in three
index
three of
of the survey
suruey areas.
are:is.
o
A ladder
ladder constructed
constructed at
at the
A
the upper
upper end
end of
of the fall
fall chinook
chinook survey
suryey area
area
on
Surshine Creek
Creek of
of the
the Siletz
Siletz River
River in
on Sunshine
in 1963
1963has
has allowed
a!.lowedfish,
whic-h
fish, which
normally would
would have
normally
have spawned
spawnedin
in the
the suryey
&rea, to
survey area,
to spawn
spawnfarther
farther upstream.
r4)stre.ur.
O
o
o
o
({
+t
6
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o
(-,
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sd
o
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Total
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oi
qt
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gr
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\
EEEEf;i$f;I+flHEHsE
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174.8
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xt
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52
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6.4
118
13
7.8
2.3
7.7
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t
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58.7
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Total
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ct
td
E
o
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o
a
t
I
o
1
9.4
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1.
3.0
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1.0
3.4
3
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11
5
5
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3
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26
4
17
3
9
4
8
6.6
5
3
0.8
0.0
5.4
1
9
11
12
4.6
5.8
9
2U3
19.9
4.6
8.8
8.6
1.0
4.2
0.0
21.7
4.2
18.8
2.3
15.7
3.8
35.1
5.3
20.8
24
10.9
14
9.0
10
Nehalem
Miami
Kilchis
Wilson
Trask
Tillamook
Netarts Bay
Nestucca
Siletz
Yaquina
Beaver Creek
Alsea
Siuslaw
Tenmile
Coos
Coquille
Miles
No.
Coho
Miles
No.
Chum
Miles
No.
Fall Chinook
No.
Miles
River System
Number of Spawning Fish Surveys and Distances Surveyed by Coastal
River Staff During the 1971-72 Spawning Season
Table 1.
.5
S
S
S
4.
a
.
5.
5.
70t of
Since installation
of
only 70%
of the
the
the counts
colurts have averaged only
ladder, the
of the
the ladder,
installation
a
yeOrs.
previous 99 years.
the previous
counts
were made
nade in
in the
that were
counts that
ar.ea
Since this
suryoy area
this survey
caused
River, the
chargo has
represents
the change
has caused
Siletz River,
the Siletz
for the
represents 40%
4A%of
the index
index area for
of the
8eo.
approxinrately 8%.
systen of
of approximately
river system
a false
the whole river
for the
false decline
trend for
decline in
in the
the trend
o
the Rock
Rock Creek Hatchery
The
Hatchery has
has
to the
of coho to
The recent
increase in
returns of
recent increase
in returns
chinook sunrey
coho utilizing
resulted
in large
numbers of
of stray
stray coho
utilizing the
the chinook
survey area
area
resulted in
large nrmbers
on North
North Rock
Rock Creek
for spawning.
Creek for
spawning.
o
area was
was first
first noted
in 1965.
noted in
1965.
suntey
the survey
An
in the
of coho
coho in
An overabundance
overabwrdance of
Large rnasses
masses of
pool have
have nade
made
of fish
fish in
in each pool
present.
it
impossible to
it inpossible
live chinook
chinook present.
count all
al.l the
the live
to count
The
chinook
of chinook
The count
cotmt of
the
of the
digging of
carcasses is
undoubtedly low because
because some
buried by the
the digging
sone are buried
is r.urdoubtedly
a
drea has
The superimposition
that is
is occurring
the sunrey
survey area
has mdoubtedly
undoubtedly
Ttre
occurring in
in the
superimposition that
coho.
coho.
been
been detrimental
detrinental to
to the
the chinook.
chinook.
this is
is a regular
occurrence, the
the
Since this
regular occurrence'
the Sil.etz
abrndance in
survey
indicative of
of the
in the
Siletz
the chinook abundance
suiley area is
is no longer
longer indicative
o
River.
River.
Fall Creek on
Similar
on Alsea
Alsea
Sinitar conditions
sun/ey on Fall
conditions occur
the standard
standard survey
in the
occur in
River.
Fliver.
o
traverse
to the
A
number of
returning to
hatchery now
now traverse
A tremendous
the hatchery
trenendous nunber
coho returning
of coho
period.
the
the survey
area during
snrvey area
during the
fall chinook
chinook spawning
spawning period.
the fall
Considerable
Considerable
on
numbers
On
nurnbers of
survey area
area causing
causing superimposition
superinposition
of these
these coho
coho spawn
the survey
in the
spawn in
gravel, as
fenale chinook
chinook eggs
well as competing
with female
eggs already
already in
8s well
conpeting with
in the
the gravel,
o
for
for the more
sites.
more favorable
favorable redd
redd sites.
This has resulted
in the
the survey
survey
resul.ted in
cormts in
This
ln counts
watershed.
general conditions
the watershed.
area being no
conditions in
in the
longer indicative
no longer
indicative of
the general
of the
of
The chum
of
The
are no longer
churinsalmon
salnon counts
counts on Whiskey
Mriskey Creek are
longer indicative
indicative
o
the run
nnr into
into that
that system.
systen.
trap
Oregon
Llniversity has
constructed aa trap
Oregon State
State University
has constructed
and takes
in
our survey
in our
area and
eggs for
for their
their hatchery.
hatchery.
takes eggs
suryey area
distribution,
Thus, the distribution,
abundance, and
Sepresentative.
abundance,
and age
age data
are no
no longer
lo'nger representative.
anrdsex and
data are
o
o
a
6.
6.
RESULTS
RESUTTS
;
Fall Chinook Salmon
Safunon
Fall
The count of
six coastal
rivers was
was 29 fish
per nile
mile
fish per
The
in six
coastal rivers
fal.L chinook in
of fall
(1952-70) (Table
which was
average (1952-70)
was 88 fish
mile below
2).
fish per mile
below the
the 19-year
l9-year average
ffable 2).
o
fire nunber
river systems
The
number of
per rnile
mile between river
the
of fish
fron 26 on the
fish per
systens ranged from
Yaquina and
River.
Yaquina
and Alsea rivers
rivers to
on the
Nestucca River.
to 55
55 on
the Nestucca
All
rivers except
A11 the rivers
averages.
the
the Alsea had
had fish-per-mile
counts
Long-tera averages.
fish-per-nile
cotnts lower
Lower than their
their long-term
o
The trend
The
after cessation
of
rise in
escapement level
trend counts show
sholr a rise
in escapenent
level after
cessation of
commercial
connercial fishing
the rivers
l0-year period
period
fishing in
rivers in
1956 followed
in the
in 1956
followed by about a 10-year
(Figure 1).
of
stability
of stability
(Figure
l).
t
1968, 1969,
1969,
Although the counts
cornts dropped
dropped somewhat
in 1968,
sonswhat in
and 1971,
1971, the fluctuations
and
within expected
ranges.
fluctuations are
are within
expected ranges.
and Coquille
The counts
areas on
Coquille
The
cotrnts in
the auxiliary
auciliary survey
on the
the Siuslaw
Siuslaw and
in the
survey areas
rivers paralleled
rivers
paralleled those
of the
standard areas by showing a decline
decline from
fron
those of
the standard
o
yearrs record
the previous
the
previous year's
record high
average.
slightly less
thar average.
high to
level slightly
Less than
to aa level
Peak counts
are tabulated
1-8.
Peak
counts for
for each
survey area
Appendix tables
tables 1-8.
each survey
area are
tabulated in
in Appendix
a
Cnhes Cal
n.an
Coho
Salmon
peak count
The peak
The
was 32
of coho
32 fish
fish
count of
coho salmon
salnon in
in eight
eight coastal
coastal drainages
drainages was
per mile,
nile, which
which equalled
per
equal.led the
2l-year average.
average.
the 21-year
o
ranged from
13 fish
fish
Counts
Cor.srtsranged
fron 13
per mile
nile on
on the
the Nestucca
Nestucca River
River
per
per mile
River to
nile on
to 58
58 fish
fish per
on the
the Yaquina
Yaquina River
(Table 3).
(Table
3).
The
The counts
ranged from
counts for
each stream system
of
for each
systen ranged
frour 49
49 to
to 171%
171%of
their 1950-70
their
1950-70 averages.
averag€s.
o
The coastwide
coastwide average
average of
The
counts represent
of the
the peak fish-per-mile
fish-per-mile
represent the
the
year of
second year
of improvement
(Figure 2).
iqprovenent from
fron the
very low
second
the very
low count
cornrt of
of 1969
1969(Figure
2).
It
It
also represents
represents a 45%
4S%improvement
also
year which produced it
inprovenent over
over the
the brood year
it
o
which is
is encouraging since
was severely
since the
the 1968
affected
1968 spawning
severely affected
spawning season
season wff;
long periods
periods of
ice and
areas available
available for
by long
of ice
snorr'which
whictr minimized
urininized areas
and snow
for spawning.
spawning.
jack coho
The
The count of
of jack
was two fish
per nile
mile which equalled
equalled that
of the
coho was
fish per
that of
the 2
previous years
years but
was only
previous
half the
average.
but was
only half
long-tern average.
the long-term
o
o
o
o
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1/ Figures in parenthesis indicate numbers of jacks included in the totals.
1.6
2.4
7.7
7.5
3.0
6(2)
16(1)
16(5)
112(34)
85(12)
42(3)
33(13)
18(4)
68(28)
26(8)
25(12)
39(8)
28(2)
131(21)
32(7)
82(10)
69(16)
45(17)
96(26)
167(40)
33(6)
16(1)
16(8)
22(3)
16(5)
28(6)
24(7)
29(5)
35(6)
20(5)
12(4)
24(4)
55(10)
26(4)
-26
-8
--
17(6)
21(6)
11(2)
--
20(5)
--
59(13)
37(7)
22(5)
28(6)
36(6)
+4
-2
-9
-26
a
a
t
a
o
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Til].amook
10(2)
12(4)
63(18)
25(4)
58(8)
14(2)
15(2)
22(9)
15(4)
43(11)
52(6)
31(2)
39(15)
43(6)
40(9)
48(8)
40(8)
48(9)
49(8)
41(7)
27(5)
24(4)
52(8)
29(5)
19(3)
10(1)
10(2)
16(9)
--
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
3.5
Miles
Surveyed 3.5
---
16(2)
36(3)
27(7)
16(4)
26(13)
25(1)
58(16)
35(3)
41(4)
67(34)
70(5)
46(7)
59(14)
55(6)
59(15)
47(4)
34(2)
23(2)
12(1)
36(2)
29(3)
-27
Departure
of 1971
from Av. -12
----15
81(10)
56(11)
41(8)
Yaquina
24
16
63(16)
12(1)
21(2)
30(9)
13(6)
26(7)
40(3)
23(1)
65(2)
11(2)
14(1)
27(17)
20(5)
43(5)
77(10)
29(1)
30(13)
35(6)
66(13)
49(7)
50(15)
32(5)
36(3)
29(3)
15(3)
11(3)
42(5)
27(3)
194(10)
10(2)
20(2)
35(5)
11(1)
118(33)
73(4)
55(0)
131(34)
100(16)
80(16)
91(8)
57(10)
190(11)
125(14)
102(18)
57(3)
24(4)
68(7)
55(5)
63(18)
18(4)
12(4)
4(2)
9(4)
66(22)
60(11)
60(5)
59(21)
76(13)
64(9)
88(8)
67(11)
54(12)
86(17)
110(14)
67(12)
28(4)
75(13)
29(6)
Alsea
Siletz
Nestucca
Nehalem
16(6)
24(2)
26(9)
32(6)
26(5)
24(10)
31(5)
19(5)
22(5)
33(6j
44(8)
26(6)
1952-70
Average
--
---
Auxiliary
Siuslaw
Coauille
Weighted
Average
Fish Per Mile
Bay
Tributaries
Year
Summary of Peak Fish-Per-Mile Counts of Fall Chinook in Standard
and Auxiliary Survey Areas of Coastal Rivers Since 1950 1/
Table 2.
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Departure
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d(tl
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17(1)
23(1)
38(1)
1964
1965
1966
1967
1968
1969
1970
1971
B
32(4)
26(1)
27(2)
Average
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1961
1962
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1950-70
21(1)
1958
1959
1960
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Figuree in parent hesee indicate numbers of jacks included in the totals.
\
/
81(28)
24(3)
8(2)
23(2)
19(12)
75(40)
55(19)
26(7)
37(5)
16(2)
19(3)
24(5)
15(2)
19(4)
17(2)
23(2)
30(4)
46(3)
10(1)
19(0)
13(2)
21(4)
29(3)
25(11)
36(4)
27(4)
44(5)
13(4)
29(2)
14(3)
29(3)
29(2)
39(9)
31(3)
31(3)
34(3)
35
80(3)
24(1)
5(1)
20(1)
12(0)
28(3)
46(2)
14(2)
27(1)
20(8)
67(3)
36(5)
34(5)
55(5)
52(8)
58(5)
27(5)
35(4)
16(3)
43(2)
58(2)
39(2)
28(2)
19(1)
7(1)
11(0)
6(1)
16(0)
5(0)
26(0)
31(2)
46(4)
43(3)
33(1)
42(2)
17(2)
14(0)
45(3)
23(1)
19(3)
55(2)
35(2)
1951
1952
1953
1954
1955
1956
1957
+11
Miles
Surveyed
12
43(5)
23(3
71(5
69(4)
20(2)
23(2)
21(1)
39(7)
41(2)
11(1)
28(1)
18(5)
44(8)
34(5)
25(4)
48(5)
36(4)
32(4)
24(3)
22(2)
16(2)
26(2)
32(2)
43(9)
65(6)
164(9)
37(6)
36(1)
24(1)
60(16)
66(4)
21(3)
53(1)
14(5)
38(11)
50(5)
12(4)
59(4)
54(5)
26(4)
22(4)
12(1)
25(4)
16(2)
21(2)
54(7)
118(24)
104(13)
31(7)
29(12)
15(3)
163(8)
40(4)
10(2)
16(3)
23
11(2)
58(2)
43(3)
13(1)
37(1)
34(2)
46(6)
30(2)
12(0)
28(2)
23(6)
48(6)
22(2)
40(6)
64(8)
31(4)
42(7)
29(4)
26(2)
9(1)
12(2)
32(0)
Coguille
Coos
Alsea
Yaguina
Nestucca
Wilson
Nehalem
15(1)
64(1)
55(1)
18(0)
19(2)
14(0)
10(1)
13(2)
9(1)
11(0)
9(2)
19(2)
12(1)
22(4)
34(5)
29(5)
29(4)
21(2)
20(2)
3(0)
22(3)
13(1)
11
17(1)
45(3)
45(2)
19(1)
9(1)
18(1)
42(1)
59(2)
6(0)
21(1)
21(6)
40(2)
30(4)
19'1)
43(3)
34(2)
22(2)
18(1)
1950
3
a
e
River
Weighted
Average
Fish Per Mile
Beaver
Creek
Year
Summary of Peak Fish-Per-Mile Counts of Coho in Standard
Survey Areas of Coastal Rivers Since 1950 1/
Table 3.
.5
S
S
-
()
rI
c)
I
h
al
o
t{
o
b0
(d
(}
rn
(')
21-Year Average (1950-70)
^\i
I
T
of
I
I
t
I
I
I
\
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a
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tr
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(
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\
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t
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rrn
a
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lro
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(\l
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rr1
Fl
a
tat
.0
o
o
o
b0
(6
t{
o
l'
a
o
t{
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o
(J
ts
o.
o
h
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.r{
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${
g
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rt
h
rd
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tq
T{
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o
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cd
Ft
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vt
Ft
Fa
ol
I
,{
F
Average Number of Coho Per Mile in Standard Survey Areas of Eight Coastal Rivers, 1950-71
b0
..t
t&
=
h
GI
Figure 2.
o
4
70
68
66
64
62
60
Year
58
56
54
52
50
-
-i- - -f-i
Jacks
I
-
/
---
P
a
40
- -p--- -
'-
-
T- -/
I
(,
ct
Adults and Jacks
rd
60
o
o
o
80
10.
0
a
11.
1
1.
and auxiliary
auxiliary
The peak counts
cormts of
areas in
The
survey
the standard
in
of coho
coho in
in the
standard and
survey areas
o
tributaries
of
were 71
per nile,
mile, respectively
tributaries
of Tenmile
Terunile Lake
7l and
and 287
287 fish
fish per
respectively
Lake were
(Ta,ble 4).
(Table
4).
and 113%
average of
These
of the
These counts were
were 27
the average
standard
113%of
of the
the standard
27 and
and auxiliary
auxiliary counts,
and
courts, respectively.
respectively.
o
These
used to
lhese data can
can be used
to estimate
estinate
total
1955-56
total escapen€nt,
escapement, based
based qron
upon a population
population estinate
estimate study
study completed in
in 1955-56
(Morgan and
(Morgan
and Henry, 1959).
1959).
The
static
T?reresulting
resulting estimates
estinates indicate
indicate a fairly
fairly static
escapenent
escapement level
between tr960
1960 and 1967
1967 with
with a sharp
sharp decline
decline in
in 1968
1968 which
which
level between
I
(Figure 3).
equaled the record
equaled
record low
Low of
of 1959
1959 (Figure
3).
Since the
was chemically
the lake
lake was
chenically
treated by the Game
treated
populations of
warm-water
Gans Commission
in 1968
1968 to
to remove
renove populations
of wam-water
Connission in
drastic changes
fish, drastic
popul.ation.
fish,
changes have
have occurred
in the
the coho
coho population.
occurred in
o
returns
The
The returns
jacks in
of
in 1969
1969 and
and adults
lakes
of jacks
the result
result of
of rearing
rearing Tennile
Tenmile lakes
adults in
in 1970
1970 were the
coho in
stock coho
stock
ln aa hatchery
hatchery and
and releasing
releasing them
the system
snolts.
then into
systenasassntolts.
into the
jacks that
The 57,000
571000 jacks
The
returned in
that xetrfired
in 1970
1970 and
and the
the 33,500 adults
adults that
that
t
returned in
returned
in 1971
1971 were
were the
progeny of
the progeny
of natural
natural. spawning
spavrning1968-brood
stock.
1968-brood stock.
juveniles, they
As juveniles,
they had
As
with
had the
advantage of
tiving in
the advantage
of living
in a lake
lalce environment with
substantially
reduced predation
predation and
substantially
reduced
and competition.
competition.
o
The
The estinate
estimate of
of 57,000
jacks is
is the
the highest
highest since
jacks
have been
been calculated,
the
since the
the escapements
escapements have
calculated, and
and the
33,500 adults
adults represented
represented the
33,500
highest estimate
began 17
the second
second highest
estinate since
since they
they began
L7
years
years ago
ago.
o
The adult
adult escapement
escapenent produced an
The
an estimated
estimatod deposition
deposition of
of 61.2 million
urillion
eggs which
which was
was 185%
(Table 5)
185%of
eggs
of the
1955-70 average
average (Table
the 1955-70
5) and
and highest
highest since
1955.
since 1955.
jack run
The 1971
l97l jack
run estimated
estinated at
at 10,500
$as the
result ofof a alow
The
10,500was
the result
nrmber
lowntnnber
o
fenales in
of females
in the 1969
of
possible adverse environmental
L969 spawning
spawning escapement
escapenent and
and possible
envi.ronmental.
factors
factors in
in the
streams.
the tributary
tributafy
stre{uns.
Peak
counts for
for each
Peak counts
are tabulated
each survey
sunrey area
area are
tabulated in
in Appendix
Appendix tables
tables 9-18.
9-f8.
o
o
r
t2.
12.
Table 4.
4.
Table
,
_
__
Year
Year
o
o
o
a
o
1950
1950
1951
1951
1952
1952
1955
1953
1954
1954
1955
1955
1956
1956
1957
1957
1
958
1958
1959
1959
1960
1960
1961
1961
L962
1962
1963
1963
1964
1964
1965
1965
1966
1966
L967
1967
1968
1968
1969
1969
1970
1970
l97L
1971
1950-70
1950-70
Average
Departure
Departure
from Average
fron
o
Mil,es
Miles
Suweyed
Surveyed
of Coho
Corurtsof
Cohoin
in
Summary of
of Peak
Peak Fish-Per-Mile
Fish-Per-lulile Counts
Sunnaqy
Areas of
of Tenmile
Tennile
$rrrvey Areas
Standard
Auxiliary Survey
and Auxiliary
Standard and
rsour"T"'=tt':
,tnto
1
:T"'
Lakes Tributaries Since 1950 1/
Tennile
Tenmile
Lakes
Lakes
14s(4s)
43s
435
4e3(ee)
493(99)
170(7s)
170(79)
260(rrr)
260(111)
sr9(2ls)
519
(215)
Tennil.e
Tenniile
Lakes
145 (45)
s70(236)
570(236)
388(121)
388(121)
r170(95)
70(ss)
114(48)
114(48)
(1r8)
r68
168(118)
224(94)
224(94)
2le( e6)
219(96)
236(leo)
236(190)
268(t43)
268(143)
lge
199 (106)
(106)
180(7s)
180(75)
r06 (63)
106(63)
s7( 30)
57(30)
526(171)
526
(171)
s03( 244)
503(244)
409(138)
409(138)
r84(76)
184(76)
88(21)
88(21)
(L28)
t77
177(128)
22e(92'
229(92)
zss(e7)
255(97)
zse(r44)
239(144)
28s(117)
285(117)
r64
164 (s6)
(56)
(67)
r81(67)
181
r32(8r)
132(81)
383(134)
383(134)
7r (10)
71(10)
20r(101)
201(101)
88(23)
88(23)
134(80)
134(80)
4a8Q7o)
408(270)
287(4e)
287(49)
2se(1oe)
259(109)
(r14)
254(114)
2s4
-188
-188
0
.8
0.8
+33
+33
17.1
17.L
peentl@aee indicate
?ignee in
in parentheses
i.nehded in
i.n the
the
indd.ate numbers
wnfure of
of jacks
iacl<s included
U/ Figures
totale.
totals.
o
o
o
<
*'.--
fl
ral
3l
I
$l
t
gI
H
/
/
4.F
(
t
I
t
I
\
\
t\
\
)
J4
(J
al
F)
I
{.
@
\o
ro
\o
rtr
\o
(\I
\o
c)
\o
€
ra
f't
de
oo
Year
o
o
o
o
a
a
vl
A4
cf
cB
Fl
't
e
./
V
70
68
66
64
60
58
\ /1
Gl
d
L)
O
t
c)
+,
cl
)
(-)
so
o
Pt
ct
o
a
f.ll
o)
.tr
.t{
tr
P
to
|l,
tr
rt
d
-I
(l)
ru
&
UI
Ol
ln
an
I
r\
Calculated Coho Escapement into Tenmile Lakes, 1955-71
r&
{D
l{
I
d0
.A
lf,
Figure 3.
d
o
P
l-/
I
I
!r
0
56
I
I
/
\
i
1
1
V 2
\V'/Jacks
,li
/
\
\
Ii
\
/
.1
p
I
5
t
I
c)oo
\C)
0
o
O
o
60
II\
sPu€snoql uT lueuedBf,sg pslslnel"S
'
o
o
4,
\ \
020
II
\
_
\\
4,
\
/\
U
f
\
/1
l6-Year Average (1955-70)
_____ -_______
40
II
A
0
Adults and Jacks
(
S
0
0
0
0
0
0
o
14.
1
4.
Table 5.
5.
in
Coho in
Calculated
Egg Deposition
Deposition of
of Coho
and Egg
Escapenent and
Calculated Escapement
1955-71
Tennile Lakes,
Lakes, 1955-71
Tenmile
o
O
o
o
a
o
o
I.
o
Calculated Escapement
Percentage
Percentage
Jacks
Females
Fenales
Potential
Egg
Potential Egg
Deposition
Deposition
Total
in
Millions /
in lvlil.lions
36,000
36,000
77,500
77,504
82.8
8
2,8
66.5 !i/
66.5
1/
51,500
5l,5oo
82,000
82,000
60.9
60.9
31,500
3l ,500
65.2
6 5.2
29,000
29,000
60,500
60r500
61.5
61.5
1958
1958
1
12,500
2,500
62.9
62.9
16,000
16,000
28,500
2Br50o
23.7
23.7
1959
1959
8,000
8,000
66.sy1/
66.5
4,500
4
,500
12,500
12,500
15.9
l5 .9
1960
1960
5,500
5,500
66.8
66.8
27,000
27,440
32,500
32,500
11.1
1r.1
1961
1961
16,000
1
6,000
66.2
66.2
19,500
19r 500
35,500
35,500
31.8
3 1 .8
1962
t967,
18,500
19,500
67.0
67.0
20,500
20,500
39,000
39,000
37.2
37.2
1963
1963
I11,000
I ,000
71.6
7
t.6
30,500
30,500
41,500
41,500
38.7
38.7
1964
1964
19,500
19,500
66.1
66.r
24,500
24 1500
44,000
44,000
38.7
38.7
1965
1965
12,500
12,500
71.3
7t.3
12,000
12,000
24,500
24,500
26.7
26.7
1966
1966
13,500
13,500
56.8
56.8
14,000
14,000
27,500
27,500
23.1
2s.L
1967
1967
11,500
1
1, 5 0 0
60.9
60.9
21,000
21,000
32,500
32,500
21.6
2r.6
1968
1968
7,500
7r 500
66.9
66.9
5,000
5r000
12,500
1
2,500
15.0
1
5,0
1969
1969
6,500
6,500
61.8
61.8
17,000
17,000
23,500
23,500
t12.0
2.0
Year
Adults
1955
1955
41,500
41,500
66.sy2/
66.5
1956
1956
30,500
50,500
1957
r957
1970
1970
14,900 y3/
14,900
65.4
6
5.4
57,000
57,000
71,900
7t,900
29.1
29.L
1971
t97l
35,500
33,500
60.8
60.8
10,500
10,500
44,000
44,O00
61.2
61.2
1955-70
195570
Average
16,300
16,300
24,100
24,l0a
40,400
4
0,400
33.1
33.1
nabio of
1/
Eatitrnted from
the average
avevqgefemale-to-male
of 1957-64.
7957-64.
from the
fenale-to-ma7,eratio
U Eetiniated
o
U/
per female.
Based
on
Baeed
of 3,000
31000eggs
onfecundity
eggsper
feemdifu of
fenwLe,
(g5%)were
3/ Confidence
NN == 11,800
and
Limits (95%)
utene
etdfrN == 18,400.
78"400.
Confidennelimits
1.1t500
U
o
15.
15.
Chun
Chum Salmon
Salrnon
o
fire peak
peak count
cotrnt of
of chum
The
chun salmon
in three
drainage basins
three drainage
basins was
r.cas96
per
salnon in
96 fish
fish per
(Tabte 6).
nile
mile (Table
6).
lltis was
was 64
This
64 fish-per-mile
fish-per-miLe lower
lorer than the
the 18-year
l8-year average
average
and was
intermediate between
for 1967
and
was intermediate
between the
the counts
and 1968,
the years
years in
in
counts for
1.967and
1g68, the
o
which they
(Figure 4).
which
they were
produced (Figure
were produced
4).
systems.
systens.
the runs
nrns were
The
were down
down in
all three
in all
three river
river
OSUwas
was only
only able
abl.e to
OSU
to take about
about 280,000
2801000eggs
eggs of
of the 750,000
750,000 they
had
scheduled from
had scheduled
frorn Whiskey
Whiskey Creek.
Creek.
t
The auxiliary
auxiliary fish-per-mile
The
fish-per-mile
count on
was
Tillaraook Bay
on Tillamook
Bay tributaries
was
tributaries
fish which
390 fish
43 fish-per-mile
fish-per-nile higher
higher than
390
which was
was 43
than the
average.
the 11-year
ll-year average.
The
The
1971 fish-per-nile
was distinctly
years
1971
fish-per-mile count
higher
cormt was
distinctly
either of
the brood
brood years
than either
of the
higher than
o
that
that Praduced
produced it.
it.
A strong
strong trend
trend on
A
on aa 4-year
4-year cycle
cycle can be noted
noted in
the standard
in the
standard survey
sunrey
counts.
counts.
o
Ttris
trend is
is also
This trend
also reflected
reflected by the
the auxiliary
auxiliary fish-per-mile
fish-per-nite
cormts
in 1963
1963 and
counts in
and 1967.
L967.
I'he relative
relative low
Lon counts in
The
in the standard areas in
in
:
1971 follow
foll.ow the
the relative
rel.ative low
1971
counts of
low counts
of 1955,
1955, 1959,
lgsg, 1963,
1962.
196g, and
and 1967.
o
Although widely
widely fluctuating,
fluctuating,
Although
the
the counts show
show evidence of
of stabilizing
stabilizing
at aa low
Low level
level during
during the
the 1960's
l960ts after
at
after the
the decline
decl.ine of
of the
l950rs.
the 1950's.
Peak counts for
Peak
survey area are
are tabulated
tabulated in
in the
the Alryendix
Appendix tables
tables
for each survey
o
19-22.
Lg-22.
A'e,_Size,
Con!position of rg?t
1971 c]un_
Chum s?tno{t
Salmon Run
se5_[o_gp9tfj!e!__9f
R
a15lSex
$99!-_q14,*and
o
years, attempts
previous years,
made to
As
As in
in previous
atte$pts were
were made
sarnple dead
for
dead chum
chum salmon
salnon for
to sample
age,
and sex by
by collecting
collecting data
data fron
from the
the first
first 50
SO dead
dead fish
fish encormtered
encountered
a;ga, length,
length, and
each river
in
in each
river system.
systen"
o
Because
Because of
of the
the poor
poor escapenent
escapement and fl.ood
flood conditions
conditions in
in
the najor
major rivers,
rivers, we
we rdere
were only
only able
able to
to collect
collect 304
304 samples, nainly
mainly fron
from Coal
the
Creek
the Kilchis
Kilchis River.
River.
of the
Creek of
a
16
L6.
Table 6,
6,
Sunmary of
Peak Fish-Per-Mile
Counts of
Chun in
Standard
Summary
Fish-Per-Mile Counts
of Chum
in Standard
of Peak
Since
and
Survey
of
Rivers
Since
1948
and Auxiliary
Areas
Coastal
1948
Auxiliary
Survey
of
o
Year
Year
o
a
o
a
o
o
o
o
o
Tillanook
Tillamook
Bay
Bay
Tributaries
Tributaries
1948
1948
r949
1949
1950
1950
1
951
1951
r.952
1952
1953
1953
1954
19s4
1955
195s
1956
1956
1957
1957
1958
1958
1959
1959
1960
1960
1961
1961.
1962
L962
1965
1963
1964
1964
1965
1965
1966
1966
1967
L967
1968
1968
1969
1969
1970
1970
1971
1971
484
484
925
925
356
356
698
698
304
304
530
530
591
5
91
136
136
r33
133
251
zsL
225
225
107
r07
Standard
Netarts Bay
I{etarts
Bay
Whiskey
Whiskey
Nestucca
Nestucca
Creek
Creek
21
2L
277
2
65
65
26
26
50
50
24
24
rL7
117
74
74
54
54
71
7l
32
32
27
27
154
154
39
39
13
13
117
tL7
r58
158
71
7L
11
1l
51t
5
136
136
146
L46
33
33
29
29
100
100
58
58
65
65
31
31
45
45
36
36
1953-70
1953-70
Average
136
136
71
7L
Departure
Departure
from Average
fron
-62
-62
-3s
-35
-200
-200
Miles
Surveyed
Sunreyed
2.3
2.3
1
..8
1.8
0.4
0
.4
10
1.0
20
2A
511
5
66
66
Auxiliary
Auxiliary
Weighted
Weighted
Average
Per Mile
MiLe
Fish Per
Tillamook
TiTiffi66r
Bay
Bay
Tributaries
Tributaries
343
343
1,255
1r255
240
24A
328
328
1,680
1,680
843
843
368
368
398
398
875
875
1,100
1,100
552
552
753
753
353
3s3
793
793
913
913
197
t97
400
400
1,200
L,240
500
500
311
311
476
476
106
106
102
t02
324
324
253
253
116
116
44
44
108
108
178
178
141
141
911
9
57
s7
144
L44
117
LL7
69
59
60
60
185
185
96
96
700
700
160
160
347
347
-64
-64
+43
"
977
9
136
136
665
66s
445
445
484
484
r86
186
445
445
226
226
218
21.8
358
358
554
554
390
390
3.0
3.0
\
400
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Standard Surveys
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Average Numbers of Chum Per Mile in Standard and Auxiliary Survey Areas of
Three Coastal Drainages, 1953-71
t&
g
o0
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tir
Figure 4.
.Auxiliary Surveys
I
66
64
62
Year
60
58
56
54
O
a
o
o
A
500
S
S
1\
I
I
0
200
100
0
'
o
18.
1
8.
The length
length of
fish by age
of fish
age and
The
was within
within the
preand sex was
the limits
fomd in
limits found
in pre-
a
vious inventories
inventori€s except
year females
except that
vious
that 4th
fenales averaged
averaged slightly
4th year
slightly shorter
shorter
(Tabte 7).
in
in length
length (Table
7).
Fenales ranged
Females
ranged in
to 30.5 inches,
while
in size
size from 23
inches, r+hile
23 to
nales were
were from
fron 25
males
25 to
to 32.5
inches.
32;5 inches.
o
The sample
year classes.
predoninantly females
was predominantly
saryle was
fenales this
The
this year in
in both year
classes.
This may
nay have
have been
been due
This
die-off
due to
tine.
to differential
ilifferential
die-off time.
fire run was
was nearly
equally split
(Table
The
nearly equally
between 3rdsplit between
Srd- and
and 4th-year
4th-year fish
fish (Table
o
8,
I, Figure 5).
5),
fn
tn generaln
general, the
the fish
fish were
were smaller,
smaller, substantiating
substantiating the
the
hypothesis that
hypothesis
1966-68 brood chum
that 1966-68
chun have
have experienced poor growing conditions
conditions
in
ocean,
in the ocean,
o
SUMMARY
StI-MARY
The surveys
surveys of
of spawning
1971 indicate
indicate that
The
fish in
rivers in
in 1971
spawning fish
in coastal
coastal rivers
that
stocks of
of chum
chua salmon
stocks
salnon remain at
at a low,
low, although
although apparently
stabllized level.
leveL.
apparently stabilized
a
Fluctuations
the result
Fluctuations are
are probably
probably the
result of
of year-class
year-class survival
and age
age at
at
survival and
naturity,
rather than
than continued
maturity, rather
continued decline
decli.ne of
of the species.
species.
The
fall chinook index
index of
The fall
of abundance
abundance was
was only
of the
the long-term
only 78%
long-tern
78t of
o
average.
average.
The counts
were low
counts were
lor.r in
in all
al.I but
The
but one
one of
of the
the standard
waterstandard survey
srrwey water-
sheds and
and in
in both
sheds
both auxiliary
auxiliary survey
river systems
presumed
suryey river
systerns so it
it can be presr.rmed
sufveys accurately
that the
that
the surveys
accurately reflected
reflected a decreased
decreased escapement.
escapenent.
o
The
coho index
index of
of abundance
The coho
abundance equaled its
its long-term
long-tem average
average indicating
indicating
generally adequate
a generally
a
adequate spawning
spawning density.
density.
o
The Tenmile Lakes
particuTtre
Lakes run looks
looks particu-
Larly pronising
larly
promising because
because a near record
record ntmber
number of
were deposited
the
eggs were
deposited by the
of eggs
escaPement
year.
escapement this
this year.
jacks returning
year
Howevor, the
However,
nunber of
this year
the low
low number
returning this
of jacks
the number
number of
of adults
suggests the
adults returning
r€turning next
next year will
will be
be considerably
considerably
reduced.
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61,5
38.5
68.0
32.0
47.0
53.0
68.)
32.0
61.0
39.0
52.0
48.0
Sex Ratios (Percentae)
550 57.0
52.0
.0
49.0
48.0
45.0
43.0
49.0
51,0
204.0
92.0
123.0
207.0
00
1.0
2.0
1.0
5.0
0.0
o
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304.0
136.0 152.0
127.0
0.0
0.0
0.0
0.0
1.0
0.0
0.0
0.0
1.0
0.0
1.0
0.0
1,0
55.0
54.0
44.0
28.0
14.0
5.0
88.0
62.0
22.0
18.0
7.0
14.0
12.0
19.0
57.0
100.0
10
44.0
56.0
39.0
61.0
49.0
51.0
37.0
0.0
4.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
2.0
114.0
85.0
58.0
680
31.0
29.0
18.0
14.0
60.0
29.0
99.0 158.0
136.0
102.0
55.0
6.0
3.0
53.0
48.0
34.0
26.0
51.0
57.0
1.0
0.0
p
rc
F
€rf
...11
€Fl
6t to
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0)ql
t&E
O
F('r
(\ (\t
FF{
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tf\O
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(uql
IrE
|
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--
481.0
-
44.0
54.0
Females
Wt1es
287.0
65.0
Total
57,0
43.0
Females
Males
30.0
13.0
3.0
12.D
16.0
5.0
3
--
--
28.8
31.4
232.0
32.0
31.0
30.0
--
32.5
45.0
22.0
5
--
28.0
32.5
29.0
31.2
28.0
29.'
29.0
30.1
Females
Males
Females
Males
137.0
134.0
32.0
28.6
30.5
27.5
39.0
23.0
22.0
20.0
23.0
---
27.2
30.4
4
79.0
71.0
Females
Males
-----
2.l
26.6
29.4
27.4
29.6
S
Females
Males
4
--------
30.0
---
32.1
307
30.8
326
26.4
28.2
28.4
31.5
24.0
19.0
27.3
30.3
31.8
31.9
2.2
2A
23.0
2C..3
79.0
28.6
32.3
26.4
29.1
27.9
30,3
Sex Ratios (Numbers)
85.0
26.0
24.0
57.0
81.0
30.0
50.0
38.0
314
27.5
30.3
26.1
29.4
25.6
28.8
-
25.9
28.4
24.8
29.0
27,3
29.8
27.5
30.2
27.0
30.4
29.5
26,3
29.6
265
27.3
28,8
25,5
27.9
Females
Males
3
o
a
Sex
Mean Fork Length (Inches)
Age
Composition of Tillamook Bay Chum by Size, Sex, and Age, 1947-71
Table 7.
I
I
I
I
o
20.
20.
Table 8.
Table
8.
o
o
Bay Chunr
Estimated
Age Couposition
Composition of
of Tillanook
Tillamook Bay
Chum Runs
Runs
Estimated Age
t'ercentge
Year
Source of Data
1947
t947
Gill
Net
Gill Net
ft
1949
1949
tI
1950
1950
rf
"
1959
1959
Ittl
32.3
32.3
66.2
66.2
1.5
1.5
tl
4.6
4,6
954
9
5.4
0.3
0
.3
tl
"
77.5
77.3
21.1
2l,L
1.5
1
.5
51.2
5L.2
48.0
49.0
0.8
0.8
69.2
68.2
30.8
30.9
1.0
1.0
83.4
83.4
16.0
16.0
0.6
0.6
't
1960
1960
o
1961
1961
"
3
"
------------------------------------o
S
o
S
o
S
O
o
a
r
L
o
1962
t962
SpawningGrormds
Spawning
Grounds
g2.l
82.1
17.6
17.6
0.3
0.3
1963
1963
ll
tl
28.0
29,0
72.0
72.A
0.0
0.0
1964
1964
It
ft
85.5
85.5
1
3.8
13.8
0.6
0.6
1965
r965
It
tl
47.1
47,1
52.9
52.9
0.0
0.0
1966
1966
tf
tl
28.3
28.3
71.7
7r,7
0.0
0
.0
1967
1967
tf
tl
33.1
3 3 .I
65.4
6
5.4
1.5
1.5
1968
1968
It
ll
67.7
67.7
32.3
32.3
0.0
0
.0
1969
1969
tl
tl
62.0
38.0
38,0
0.0
0
.0
1970
1970
tl
tl
7.9
7.9
92.1
92.L
0.0
0
.0
1971
1971
tl
It
51.6
51.6
47.0
47.0
1.3
1
.3
c
o
o
o
O
o
o
.
o
o
0
I-I
o
0
-
0
0
0
3R383s
C'
0
0
0
(e8eluaceed)
uoTlTsodurogAge
e6y
(Percentage) Composition
0
0
-
0
-4
0
o
-4
t\
to
c[F
\ol
0'
00F I
A
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0'
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2?.
22.
LITERATURE CITED
CItED
LITERATURE
o
to Statistical
Statistical
Dixon, W.
W. J.
Jr.
J. and
F. J.
Ji Massey,
Massey, Jr.
Introduction to
Dixon,
and F.
1957. Introduction
1957.
p.
York. 488
Ana1ysis,
BookCo., Ltd.,
Ltd., New
NewYork.
488 p.
McGraw-Hill Book
Analysis. McGraw-Hil1
Inference.
C. R.,
R., 1957.
Li, J.
J. C.
Introduction to
Statlstical Inference.
Li,
1.957. Introduction
to Statistical
p.
Inc., Ann
Ann Arbor,
Arbor, Mich. 568
568 p.
Brothers Inc.,
o
I
o
G
o
a
n
o
o
o
Edwards
Edwards
into
nrn into
The
salnon run
Morgan,
K. A. Henry.
Morgan, A. R. and
and K.
Henry, 1959.
The 1955-56
1955-56 silver
silver salmon
1959.
Tenrnile takes
oreg, Res.
Briefs, 7(1):57-77.
7(L):57-77.
the Tenniile
Conur.Oreg.
Res. Briefs,
takes system.
system. Fish Comm.
S
S
APPENDIX
TABLES
APPE}IDIXTABTES
n
S
r
t
23.
23.
Appendix
Appendix Tables
a
the tables
tables in
in this
this appeüdix
appendix are presented
presented first
first by species
The
within
species and
and within
species
fron north
north to
species by
by watershed
watershed from
south.
to south.
The peak
and fish
fish per
The
peak counts and
per nrile
mile
figures may
not agree
agree precisely
fron years
figures
may not
precisely with
with reports
reports from
years prior
prior to
to 1971
l97t
o
because of
of aa reduction
reduction in
in the
the number
because
nunber of
of sunreys,
and deletion
spring
surveys, and
deletion of
of spring
chinook
surveys entirely.
chinook surveys
entirely.
Within
jack salmon
Within the
the tables,
tables, the
the figures
in parentheses
parentheses are the
figures in
the jack
salnon
o
counts and
and these
these figures
figures are
are included
included in
counts
the totals.
in the
totals,
standard survey
the standard
survey could
could not
not be
the
be made.
nade.
fish
estinated.
fish were
were estimated.
a
In some
sone instances,
instances,
In
In
In these
these cases the
the numbers
numbers of
of
This
detennining the
the ratio
ratio of
of total
total
This was
was done
done by
by determining
fish which
seen in
fish
which were
were seen
that particular
particular survey
in that
survey during
the preceding
?
during the
preceding 2
years to
to the
the total
total. fish
fish seen
seen in
in all
all the other
other streams in
years
in that
that system
systen
during the
the same
period.
sane period.
during
o
That
ratio was
applied to
total of
That ratio
was applied
to the
of the
the total
other surveys
surveys in
in the
the drainage
drainage for
other
question and
for the
the year
in question
the resulting
and the
year in
resulting
figure was
assumed as
the number
fish which
figure
was assumed
as the
number of
of fish
which should
should have been seen
seen
in the
the survey area.
in
area.
a
That
figure was
entered into
the calculations
That figure
was then
then entered
into the
calculations
if the
the survey
as if
suwey was
as
was done.
done.
The
supplenental surveys are included
The supplemental
incl.uded for
for reference.
reference.
Data from
fron these
Data
surueys are
are not
in computing
conputing fish-per-mile
fish-per-mile
surveys
not used
used in
values because, in
most
values
in nost
o
cases,
the supplemental
srrppl,enental surveys
sunreys were
hrere started
cases, the
started at
at aa later
Later date.
date.
The Teninhle
The
Tennile
take
survey provides
provides the
the data
data for
population estimate.
Lake auxi.liary
auxiliary survey
for the
the actual
actual population
estimate.
o
o
So
o
I.
24.
24,
Table 1.
l.
Peak
Peak Counts
River Spawning
Spawning Fish
Fish Surveys
Counts on
on Nehalein
Nehalem River
Sunreys for
for
Fall Chinook
Chinook Since 1950
FaLl
1.950
o
Year
Year
o
a
.
a
O
Buchanan
Buchanan
Creek
Creek
6
6
2
2
1950
1950
1951
1951
1952
1952
1953
1953
1954
1954
1955
1955
1956
r956
1957
1957
1958
1958
1959
1959
r960
1960
1961
1961
1962
t962
1963
I963
1964
1964
1965
1965
1966
1966
1967
1967
1968
1968
1969
1969
1970
t970
1971
1971
22(4)
22(4)
36(9)
36(e)
73(5)
73(s)
24(9)
24(e)
20(2)
2ac2)
39(5)
5e(s)
40(8)
40(8)
23
26(1)
26(r)
12(1)
1 2( 1 )
8(1)
8( 1 )
25(1)
30(0)
30(0)
Miles
0.5
0
.5
20(4)
20(4)
(2)
s5(2)
0
0
16(s)
16(5)
4
4
39(9)
3e(e)
9
9
2s
2s(r)
Cronin
Creak 7/
Creek
/
8
I
5
5
55(4)
ss(4)
8(4)
I (4)
8
I
12(4)
12(4)
16
t6
34(8)
34(8)
21
2L
(5)
44(3)
44
20(1)
2 0( 1 )
32(3)
16(1)
16(r)
18
18
10
10
1 0( 1 )
10(1)
31(6)
31(6)
10(2)
10(2)
12(3)
12(3)
3(0)
3(0)
rs(z)u
13(2) 2/
6 (0)
6(0)
Standard Surveys
cast
lh:nbug
Humbug
lhrnbug
flunbug
Creek
Creek
Creek
Creek
27(1)
2 7( 1 )
r4
14
29
29
14(3)
14(3)
7
7
33(18)
33(18)
25
7,5
57(16)
s7( 16)
24
24
10
10
46(50)
46(30)
35(3)
5s(3)
44(7)
44(7)
(e)
36
36(9)
17(3)
17(5)
13(2)
13( 2)
6
6
16(1)
16( r )
10
10
0
0
32(1)
3
2(r)
(2)
27(2)
27
t3
13
34(8)
34(8)
23(2)
2s(2)
(15)
66(15)
66,
(ls)
4r
41(15)
29(18)
2e(18)
42(3)
42(3)
74(24)
74(24'-]
69(11)
6e(11)
(6)
68(6)
68
134(80)
r34(80)
104(8)
104(8)
78(9)
78(e)
133(37)
r33(37)
126(14)
126(14)
143(43)
145(43)
103(8)
103(8)
66(2)
66(2)
46(2)
46(2)
31(2)
st(2)
(3)
57(3)
s7
39(7)
3e(7)
Total
Total
(1)
s4
54(1)
ss(8)
55(8)
127(10)
127(10)
93(24)
es(24)
56(15)
s6(r5)
90(45)
eo(4s)
87(3)
87( 3)
204(57)
204(57)
( 1r )
123(11)
123
144(13)
144(13)
236(120)
2s6(r2o)
244(19)
244(Le)
162(26)
207(48)
207(48j
192(22)
rez(22)
206(54)
206(s4)
163(14)
163( r 4)
118(6)
rr8(6)
80(6)
80(6)
42(3)
42(3)
127(7)
r27 (7)
102(9)
102(e)
0
I
o
c
o
1.0
1.0
1.0
L.0
y1/ Surveys
twdp by
bVOregon
oregon Came
Cowrieeion since
Stnwys made
GaneCommission
einee 1968.
7968.
Estitated--strveye not
not done.
2/ Estimated--surveys
dpfte.
A
o
1.0
1.0
3.5
5.5
Fish
per
per
Mile
15.4
15.4
15.7
15.7
36.3
36.3
26.6
26,6
160
15.0
25.7
25.7
24.9
58.3
58.3
35.1
55.1
41.1
4
1.1.
67.4
67.4
69.7
69.7
46.3
46.3
59.1
59.1
54.9
54.9
58.9
5
9.9
46.6
4
6.6
33.7
33.7
22.9
22.9
12.0
12.0
36.3
36.3
29.1
29.l
25.
2 5.
a
Table 2.
Table
2.
t
Standard Survys
$rrrreys
Year
o
a
o
HS
o
Peak Counts on Tillafiook
Bay Spawning
Spaming Fish Surveys
Peak
Tillamook Bay
$rweys
for
for Fall
Fall Chinook
Chinook Since 1950
1950
1950
1 9 s0
1951
1951
1952
1952
1953
1953
1954
1954
1955
1955
r956
1956
1957
l9s7
1958
1958
1959
r959
1960
1960
1.961
1961
1962
ts62
1963
1963
L964
1964
1965
1965
1966
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
1971
Kilchis River
Kilchis
River
Sam Donn
Down Creek
Creek
San
Tillamook
Tillanook
River
River
168(2e)
168
(29)
52(1)
s2(1)
25(1)
2s(1)
ee(24)
99(24)
30(2)
30(2)
(1)
17(1)
17
7(2)
7 (2)
15(5)
ls (s)
157(48)
1s7(48)
62(6)
62t6'
43(1)
43(1)
43(3)
43(3)
29(4)
2e(4)
52(4)
s2(4),
87(2)
87(2)
17
t7
4s(2r)
43(21)
87(15)
87(rs)
133(7)
153(7)
s7(6)
57(6)
37(1)
37(L)
64(13)
64(13)
39(4)
3e(4)
4
3 ,( 1 5 )
43.(15)
-
-
:-
:
-
7(2)
7 (2)
0
0
4(3)
4 (5)
0
0
(1)
3(1)
5
(rs)
37(15)
57
64(22)
64(22)
62(3)
6 ? (3 )
65(24)
6s (24)
71(7)
7L(7)
54(4)
s4(4)
70(3)
70(3)
55(8)
ss(8)
(2)
36(2)
36
(20)
104
104(20)
93(2)
e3(2)
66(6)
66(6)
6(0)
6 (0)
32(5)
s2(s)
re(3)
19(3)
Lower
N. Fk.
LowerN.
Fk.
River
Wilson
ltlilson River
115
115
(r3)
34(13)
54
22(9)
22(s)
7(4)
7 (4)
12(7)
L2(7)
36(13)
56(13)
85G2)
83(12)
104(14)
104( r 4)
100(47)
100(47)
166(36)
166(36)
117(22)
rr7 (22)
150(22)
lso (22)
163(29)
163(2e)
111(18)
1 1 1( 1 8 )
110(25)
158(41)
1s8(4r)
(2e)
110(29)
11.0
54(13)
s4(r3)
uo(2s)
Total
Total
52(1)
s2(1)
2s(r)
25(1)
22L(26)
221
{26)
64(15)
64(1s)
(r5)
43(13)
45
14(6)
14(6)
( 13)
30(13)
30
230(76)
230Q6)
209(40)
zoe(40)
209(18)
20e(18)
208(74)
208(74)
266(47)
223(30)
223(sol
307(27)
307(27)
235(37)
zss(37)
190(41)
1e0(41)
(60)
301(60)
301
(so)
384(50)
384
(41)
233(41)
253
97(14)
e7(r4)
264
(47)
264(47)
101(22)
rol(22)
O
a
o
o
Miles
1.3
1.3
1,7
1.7
0.5
0.5
Fish
per
per
Mile
Mile
3.5
3.5
63.1
6
3.1
19.3
18.3
12.3
12.3
4.0
4,9
8.6
8.6
65.7
65.7
59.7
59,7
59.7
5
9,7
59.4
5
9.4
76.0
7
6.A
63.7
63.7
87.7
87,7
67.1
67J
54.3
54.3
86.0
86.0
109.7
109.7
66.6
27.7
27,7
75.4
75,4
28.9
2
8.9
o
26.
26.
Spaming Fish Surveys
$rweys
Nestucea River Spawning
PeakCounts
Counts on Nestucca
Table
Table g. Peak
,
o
.
Standard Surveys
Year
o
o
o
o
1950
Sinee 1950
Fall Chinook
ChinookSince
for Fall
for
1950
1950
1
951
1951
1952
1952
1953
1953
1954
1954
1955
1955
1956
1956
1957
1957
1958
1958
t1959
959
1960
1960
1961
1961
L962
1962
r963
1963
1964
1964
1965
1965
1966
1966
1967
1967
1968
1968
1969
1969
L970
1970
1971
l97L
East
Beaver Creek
Creek
t7
17
ls (1)
15(1)
130(9)
130(s)
77
(2)
le
19(2)
L7(2)
17(2)
Moon
Creek
Creek
33(3)
33(3)
31)
TA
Niagara
Creek
Creek
s(1)
5(1)
11
11
r37(2)
137(2)
30(s)
30(5)
se(3)
59(3)
63G)
63(1)
60(7)
60(7)
34(6)
34(6)
6e(1r)
69(11)
s3(s)
53(5)
42(7)
68 (6)
68(6)
48(7)
48(7)
64(2)
32(1)
32 (1)
16(1)
1 6( 1 )
(s)
47(3)
47
27(2)
27(2)
178(12)
178( 12)
10(3)
10(3)
11( 3)
11(3)
21(2)
2t (2)
10( 2)
10(2)
L37{s2)
137(52)
s7(s)
57(5)
27
27
14s(42)
145(42)
t26(27)
126(27)
(18)
68
68(18)
66(t2)
66(12)
3s(8)
35(8)
244(17)
244(17)
1se(1e)
159(19)
10e(35)
109(33)
(4)
57(4)
s7
(0)
4
4(0)
63(4)
63(4)
64(9)
64(s)
1.5
1.S
0.4
0
.4
0.4
0,4
4
7
155
1
42(7)
tt
11
104(1s)
104(19)
51(2)
sl (2)
36
36
(2s)
s7
97(29)
6e(4)
69(4)
47 (8)
47(8)
e0(2)
90(2)
(8)
s3
53(8)
125(2)
Lzs(2)
80(7)
80(7)
61(6)
61(6)
43(2)
4s(2)
36(8)
36(8)
(8)
47
47(8)
36(1)
3 6( 1 )
Fish
per
Total
Total
Mile
Mile
ss(4)
55(4)
36(1)
36( t)
44s(23)
445(23)
23.9
15.7
1 5 ,?
193.5
193.5
24(31
24(3)
10.4
10.4
4s(s)
45(5)
(11)
80(11)
80
2s(2'
25(2)
27t(76)
271(76)
(10)
167(10)
r67
(1)
126
126(1)
302(78)
s02(78)
229(37)
?29(s7)
L84(57)
184(37)
20e(1e)
209(19)
130(23)
r50(25)
457(2s)
437(25)
287(33)
287(3s)
234(41)
234(4t)
132(7)
tsz(7)
s6(s)
56(9)
157(15)
1s7(1s)
127(12)
r27(r2)
o
a
t
r
o
MiLes
Miles
2.3
2"s
19.6
19.6
34.8
54.8
10.9
1 0 ,I
117.8.
117.8.
72,6
72.6
54,8
54.8
131.3
131.3
99.6
99.6
80.0
80.0
90.9
90.9
56.5
s6.5
190.0
190.0
124.8
124.8
L01.7
101.7
57.4
57.4
243
24,3
68.3
68,3
55.2
55.2
o
j
27.
27.
Table
Table 4.
Peak Counts
Peak
Fish Surveys
River Spawning
Counts on
Siletz River
Sunreys
on Siletz
Spawning Fish
Chinook Since
for
Fall Chinook
1952
for Fall
Since 1952
o
o
o
o
o
Standard
Surrreys
Standard Surveys
Year
Euchre
Creek
Creek
1952
r952
1953
1.953
1954
1954
1955
1
955
1956
1956
r1957
957
1958
1
958
1959
1959
1960
1960
1961
1961
1962
L962
1963
1963
1964
1964
1965
1965
1966
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
1971
(7)
35(7)
3s
3
3
(r)
4
4(1)
2
2
18(8)
18(8)
(7)
37(7)
s7
40(12)
40(r2)
(1)
23(1)
23
1 6( 1 )
16(1)
11(1)
r1(1.r
20(1)
2 0( 1 )
28(3)
28(3)
34(13)
34 (15)
29(1)
2e(r)
32(3)
32 (3)
31(6)
31(6)
14(4)
14(4)
16(2)
16(2)
18(2)
18(2)
28(s)
28(5)
Miles
MiLes
1.0
1
.0
N.Fk.
Rock
Rock
Creek
Creek
108
108
13(4)
r3 (4)
(r)
27(1)
27
(5r)
78(51)
78
33(7)
s3(7)
42(6)
42(6)
(s)
59(5)
se
28
28
(16)
33(16)
53
31(5)
31(s)
18(8)
18( 8)
47(11)
47(tt)
92(26)
e2(26)
26(6)
26(6)
33(1)
33( 1)
15(1)
1 s( 1 )
8(2)
8 (2)
(3)
6(3)
6
49(5)
4e(s)
e(0)
9(0)
Fish
Sunshine
Sunshine
Creek
Creek
511
5
17(2)
L7(2)
12
t?
1I
I8
(2)
51(2)
sr
131(12)
13r(12)
37(1)
3 7( L )
46(21)
46(2r)
63(11)
6 3( 1 1 )
160(29)
r60(2e)
71(8)
71(8)
25(7)
2s(7)
40(8)
40 (8)
42(6)
42(6)
42(3)
42(3)
23(4)
23(4)
10(3)
1o(3)
(e)
60(9)
60
(s)
45(5)
45
Per
Per
Total
Total
194(7)
re4(7)
33(6)
33(6)
43(2)
43(2)
81(51)
81(s1)
(ls)
59(15)
se
130(15)
130( 1s)
230(29)
230(2e)
(2)
88(2)
88
89(38)
8e(38)
105(17)
10s( r 7)
(38)
198(38)
1e8
146(22)
146(22)
l151(46)
s1(46)
95(15)
es(ls)
107(10)
1
0 7( 1 0 )
88(10)
88 (10)
(10)
45(10)
4s
32(8)
32 (8)
127(16)
127(L6)
82(10)
8
2( 1 0 )
S
o
o
o
o
0.8
0.8
1.2
1
.2
3.0
3.0
Mile
MiLe
64.6
64.6
11.0
11,0
14.3
L4.3
27.0
27.0
19.6
19.6
43.3
43.3
76.6
76,6
29.3
29.3
29.6
29.6
35.0
3
5.0
65.9
65.9
48.6
48.6
50.3
50.3
31.6
31.6
35.6
55,6
29.3
29.3
15.0
15.0
10.7
10.7
42.3
42.3
27.3
27,3
o
28 ,
28.
Tabl.e
5.
Table 5.
Fish Surveys
fot
Peak Counts
on Yaquina
SpawningFish
Sureys for
Yaquina River
Peak
Counts on
River Spawning
Since 1950
Fall Chinook
ChirtookSince
1950
Fall
o
fr.sn
Year
Year
o
a
o
o
r950
1950
1951
1951
1952
1952
1953
1953
1954
1954
1955
1955
1956
1956
1957
1957
1958
1958
1959
1959
1960
1960
1961
1961
1962
1962
1963
1963
1964
1964
r965
1965
1966
1966
L967
1967
1968
1968
1969
1969
1970
1970
1971
r97l
Feagles
Feagles
Creek
Creek
Grant
Grant
Creek
Creek
32
32
8 e( 1 8 )
89(18)
eI (23)
91(23)
105
105
226(46)
5
5
41(4)
41(4)
24(L)
24(1)
34
34
(1)
s6
56(1)
112(46)
rr2(46)
15
15
e(s)
9(5)
76(18)
76 (18)
87 (14)
87(14)
4
3(3)
43C3)
27 (L4)
27(14)
(3)
34
34(3)
38(10)
38(10)
40(4)
40 (4)
(7)
3e
39(7)
(e)
35(9)
35
(4)
34(4)
34
34(7)
s4(7)
29(9)
38(13)
38(r3)
60 (4)
60(4)
44(11)
4
4( r 1 )
2s(e)
(36)
6e
69(36)
(27)
e7
97(27)
88(6)
88(6)
74(4)
7 4 (4 )
31(9)
31(e)
s52(1)
2( 1 )
4
7(1 s)
47(15)
80(13)
80(13)
2s(3)
25(3)
78(34)
78(34)
8 2(l s)
82(15)
4
8(1 3 )
48(13)
4
1(e)
41(9)
88(20)
88(20)
1 1 s(1 0 )
115(10)
95(17)
es(17)
Sinpsoh
Simpson
Creek
11(1)
1 1( r )
26
26
71(39)
71(3e)
le (r)
19(1)
3 ( 1)
3(1)
36(e)
36(9)
1
1(2)
11(2)
5(2)
s(2)
2s(1)
25(1)
1
155
2 1( r 1 )
21(11)
(e)
47
47(9)
63(
34)
63(34)
40(10)
40(10)
s0(r3)
50(13)
46(23)
46(23)
s6(10)
56(10)
( ls)
41(15)
41
( e)
47
47(9)
80(8)
80(8)
113(40)
rr3(40)
35(9)
3s(e)
SaLrnon
Salmon
Creek
Creek
Yaquina
Yaquina
River
River
:
0
0
3
3
6
6
2s(3)
25(3)
4
4
3(2)
3(2)
2e(2)
29(2)
24 (4)
24(4)
e(6)
9(6)
8
8
(8)
16
16(8)
3
3
33(10)
35 (10)
3(2)
3(2)
16(7)
16(7)
le (3)
19(3)
(5)
16
16(5)
1e(4)
19(4)
12(1)
1 2( 1 )
10(0)
10(0)
84(22)
84{?2)
28 (5)
28(3)
s2(7)
52(7)
31(9)
3r(e)
3(3)
3(3)
l4 (3)
14(3)
6 7( 2 )
67(2)
Per
Per
Total
:
4?o(i25)
410(125)
89( 4)
89(4)
158(r3)
158(13)
(68)
228(68)
228
36(6)
36(6)
25(0)
2s(o)
26(4)
26(4)
(6)
13(6)
13
96( 46)
96(46)
r 95( s2)
195(52)
296(25)
296(25)
17f (1r)
171(11)
1r8(48)
118(48)
176(14)
176(14)
193(69)
193(69)
2s7( 46)
237(46)
r94(37)
194(37)
176(75)
176(73)
232(4!)
232(41)
144(38)
144(38)
(38)
169(38)
169
250( 45)
250(45)
326(59)
326( 59)
197(43)
L97(43\
2.0
2,0
7.5
7,5
l15
5
30(8)
30(8)
(r)
35(1)
3s
2e(2)
29(2)
74(re)
74(19)
47(4)
47(4)
14(5)
14(5)
44(s)
44(5)
2
2
o
o
I
Miles
fl
o
o
U
2-0
2.0
1.5
1
.5
1.5
1
.5
0.5
0.5
Mi Le
Mile
62.7
62.7
11.9
11.9
21.1
21.1
30.4
3Q4
l Z .B
12.8
A6.0
26.0
39.5
39.5
22.e
22.8
15.7
15.7
23.5
23.5
ZS,7
25.7
31.6
St,6
25,9
259
ZS,S
23.5
S0.9
3.9
L9.2
19.2
22,5
22.5
333
35.g
43.5
4 3.5
26.3
26.s
o
29.
29.
Table 6.
6.
Table
Peak
Peak Counts on Alsea
Alsea River
River Spauning
Spawning Fish
Fish Surveys
Surveys
Since 1952
for
for Fall
Fall Chinook
Chinook Since
1952
o
Yeat
Year
o
o
o
o
1952
1952
1
953
1953
1954
1954
L955
1955
r956
1956
19 5 7
1957
1958
1958
1959
1959
1960
1960
1961
1961
L962
1962
1963
1963
1.964
1964
1965
1965
1966
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
L97L
Miles
[liLes
Bwk.
Buck.
Creek
Creek
(20)
5e
69(20)
1
1
6
6
24(1e)
24(19)
1
1
33(e)
33(9)
Drift
Creek.
Creek
Upper
6ffi
53
53
(2)
38
38(2)
(4)
16
16(4)
44(s7)
44(37)
Standard Suiè3rs
Surveys
N.Fk.
Lobster
Fall
Alsea
Pall
Creek
River
Creek
Creek
River
Creek
Total.
Total
Fish
Per
Per
Mil,e
Mile
18(s)
18(5)
9(5)
20( 7)
20(7)
15(e)
13(9)
r48(26)
148(26)
7
6( 1 0 )
76(10)
74(19)
74(19)
L2L(7s)
121(73)
le.2
19.2
9.9
9.9
9.6
9.6
ts.7
15.7
5
5
3(2)
3(2)
21(6)
21(6)
15(8)
rs(8)
e(s)
3(1)
3(1)
(1)
2s
25(1)
1r(2)
11(2)
25
25
46 (8)
46(8)
1 3( s )
13(5)
s51(12)
1( 1 2 )
2s(7)
29(7)
(14)
4s
45(14)
62Qa)
62(20)
26(t4)
26(14)
30(12)
30(r2)
ls (2)
15(2)
(34)
77
77(34)
46 (8)
46(8)
34(17)
34(17)
5 6( 1 7 )
66(17)
67 (6)
67(6)
7 c{ ? )
7°(2)
7 3( 3 8 )
73(38)
71(8)
7
1(B)
(13)
4e
49(13)
6
0( 1 2 )
60(12)
86 (31)
86(31)
58 (4)
38(4)
64(7)
64(7)
4 6( I s )
46(15)
(10)
34
34(10)
71(6)
7r(6)
(10)
78
78(10)
41(2)
4t(?)
73(9)
73 (e)
24(1)
24(L)
T4
14
2(1)
0.
2s(4)
29(4)
33(10)
33(10)
64(s)
64(5)
L23(2s)
123(23)
30(3) LI 42(14)
42(t4)
L,)l.t)
1t(Z)
4
4
L2
12
11(3)
11(3)
5
5
(3)
14
14(3)
20(4)
20(4)
22(4)
22(4)
36 (4)
36(4)
8s (11)
85(11)
(4)
s2
52(4)
23(s)
23(5)
35(5)
5s(s)
84 (4)
84(4)
39(6)
3e(6)
1.0
1.0
1.5
1.5
1.2
1.2
1.5
1.5
-
(2)
s5(2)
ls (8)
19(8)
(s)
3s
35(5)
2
t(s)
21(3)
14(1)
1
4( 1 )
(3)
14
14(3)
31
31
22(7)
22(7)
36 (4)
36(4)
2s(s)
29(5)
2(r)
-
11(3)
11(3)
2
2
11
11
(6)
10
10(6)
18(s)
18(5)
2e( 13)
29(13)
(L2)
4s
45(12)
18( 8)
18(8)
33(5)
35( 5)
s2( 8)
32(8)
18( 3)
18(3)
o
so(J)a
,1
.-.
-
rss (37)
155(37)
-
12r( 5)
121(5)
127(s8)
127(58)
I7t (21)
171(21)
t27( 4t)
127(41)
zt2( 44J
212(44)
184(ss)
184(55)
225(s6)
225(36)
267t47)
267(47)
1s6(36)
156(36)
8e(28)
89(28)
183(27)
183(27)
426(76)
426(76)
le8 (53)
198(33)
o
o
o
o
o
Estimated
1/ Estimated
A
2.5
2.5
7.7
7.7
-
20.L
20.1
-
LS,7
15.7
16.5
16.s
22.2
22.2
l 6.s
16.5
27.6
27.6
23.e
23.9
29.2
29.2
34.7
34.7
20.3
20.3
11.6
1r.6
2s.8
23.8
55.3
ss.
s
25.7
zs.7
o
30.
30.
Table
7.
Table 7.
Peak Counts
Siuslaw River
SpawnlngFish
Peak
Counts on
on Siuslaw
River Spawning
Surveys
for
FalL Chinook
ChinookSince
Since 1952
1952
Surveys for Fall
o
Year
Year
o
O
o
o
1952
1952
r953
1953
D]'US
Nj.. siusiaw
River
River
B
B
15(1)
13(1)
Fish
Esnond
Esmond
Creek
Creek
-
-
-
-
:-
1954
1954
1955
1955
1956
1956
19s7
1957
1958
1958
1959
1959
1960
1960
l96L
1961
1962
1962
1963
1963
1964
1964
1965
1965
r966
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
1971
4(2)
4(2)
72(r4)
72(14)
7( 1 )
7(1)
(r3)
44
44(13)
e(t)
9(1)
(r3)
3s
35(13)
14(4)
14(4)
(2)
7
7(2)
7 (0)
7(0)
2e(r2)
29(12)
3 (0)
3(0)
7(s)
7(5)
s (0)
5(0)
32(1)
32(1)
25(3)
23(3)
28( s)
28(5)
( 1)
41
41(1)
11(3)
L7(7)
17(7)
( 10)
31
31(10)
(e)
5e
39(9)
u(4)
17(4)
Miles
Miles
0.7
0.7
1.0
1.0
(6)
16
16(6)
13(3)
13(3)
0
0
3s(e)
35(9)
4
4
-
-
8
8
4
(?j
4(2)
s8(17)
58(17)
17(5)
u (s)
-
u (3)
Lake
Lake
Creek
Creek
-
2e(10)
29(10)
Total
Total
-
-
-
:
-
-
:
-
-
-
-
-
2(t)
2(1)
2s(8)
25(8)
s8(16)
58(16)
40(s)
40(5)
-
48(22)
48(22)
16(4)
16(4)
2e(2)
29(2)
247(ss)
247(35)
39(11)
3s(11)
1 2 2( 1 1 )
122(11)
141( 3r )
141(31)
84(32)
84(32)
1e2(s3)
192(53)
ssz(16)
332(76)
se(10)
59(10)
?3( 4)
23(4)
2e(to)
29(10)
ls1 (42)
151(42)
61(10)
61(10)
-
se(2e)
59(29)
s3(18)
93(18)
68(4)
68(4)
3r 4( s1)
314(51)
76(t7)
76(17)
1e8(2s)
198(25)
166(38)
166(38)
(4r)
ro8
108(41)
230(63)
230(63)
400(e7)
400(97)
7e(14)
79(14)
o
o
o
I.
o
U
o
Per
l.{ile
Mile
4,7
0.7
2.4
2.4
9.6
9.6
1 2 ;I
12.1
62.9
62.9
25,4
25.4
-
24.6
24.6
38,7
38.7
28.3
28.3
130.8
130.8
3r.7
31.7
9
2.5
82.5
69.2
69,2
45.0
45.0
95.8
95.8
166.6
166.6
32.9
32.9
o
31.
31.
Spawning Fish
Peak Counts on Coquille
Peak
Coquille River
River Spawning
Fish
Since
1952
Chinook Since 1952
Fall Chinook
Surveys
Surveys for
for Fall
Tabl.e 8.
8.
Table
o
LN.rK.
Year
Year
o
a
o
a
1952
1952
1.953
1953
1954
1954
1955
1955
t 956
1956
1957
1957
19s8
1958
l9s9
1959
1960
1960
1961
1961
1962
1962
1965
1963
t 964
1964
t1965
965
1966
1966
1967
1967
r.968
1968
1969
1969
L970
1970
1971
1971
Coquille
Coquille
River
River
-
:-
,.z-a.
Sal.mon
Salmon
Creek
-
rstrl
14(1)
2
t2(7)
12(7)
1 1(2 )
11(2)
10(4)
10(4)
0
0
0
0
7 (2)
7(2)
1 3( 1 )
13(1)
13(6)
13(6)
le (s)
19(5)
1
0( 1 )
10(1)
9(1)
e(t)
27(L7)
27(17)
16(s)
16(5)
3e(20)
39(20)
1s(7)
15(7)
r0(r)
':t"
10(1)
14(1)
-
:
-
cguilre IR.
Coguille
c
C
Total
Total
-
-
-
-
-
-
:
t3(2)
13(2)
16(7)
16(7)
7
7
-
24(t4\
24(14)
1
1
5
3
1
1(2)
11(2)
(4e)
I40
140(49)
74( le)
74(19)
t7
17
20(4)
20(4)
7 (0)
7(0)
se(23)
59(23)
22(s)
22(5)
2
2
6
6
0
0
-
0
0
2(1)
2(1)
IO
10
1
1
20
20
52
52
4r (4)
41(4)
5
5
.5(1)
5(1)
(21
10
10(2)
s(0)
5(0)
27(e)
27(9)
33(e)
33(9)
(4)
L7
17(4)
-
10(3)
10(3)
26(L)
26(1)
2s(8)
25(8)
17e(s4)
179(54)
136(20)
136(20)
67(s)
67(5)
s2(21)
52(21)
28(6)
28(6)
(45)
ro8
108(45)
42(t2)
42(12)
I
o
o
o
fl
0.5
0.3
:
-
-
flo
Miles
Per
Per
Mil.e
Mile
0
.8
0.8
0
,5
05
1
.6
1.6
16i9
16.9
20.6
20.6
r:.u
106
-
6.2
6.2
L6,2
16.2
15.6
15.6
11.1.
.9
111.9
95.0
85.0
41.9
41.9
32.5
32.5
u.5
17.5
67.5
67.5
26.2
26.2
o
o
a
o
o
)
a
I
k
o
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3.ts
S,
i" Estimated,
6.7
1.0
0.5
1.1
1.1
1.0
1.0
0.5
0.5
Miles
5
o i-'r Gl !o t{. ul \o F 6 ot c' Ft Gt t{l qt |tt \o t\oo
Itt rn ra rrl m rn ln rn rn rn \o \o \o \o \o \o \o \ao
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F{
1/ Surveys made by Oregon Game Commission since 2958.
10(0)
28(1)
7(0)
17(4)
65(6)
71(3)
10(0)
7(0)
12(0)
39(1)
22(1) 2/
4(0)
3(0)
28
49(7)
34
16
17.0
22.7
37.5
24(5)
17(0)
26(1)
5
18(1)
5
34(13)
30
5(4)
12(1)
17
7(1)
13(3)
1
34(4)
12(0)
70(0)
1971
14
48(1)
56(2)
24(2)
18(1)
4
56
80
7
20
24
2(1)
6
26
16
2
4(1)
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
o
o
o
11
8(1)
15(2)
48(4)
17(1)
17(2)
38(2)
43(4)
10(1)
10(2)
8(2)
10
3(1)
19(2)
11(3)
28(3)
12(3)
12(1)
18(3)
18(2)
11
2
29
10
8
114(10)
152(7)
251(6)
21.9
18.2
18(3)
41(1)
57(8)
16(2)
52(7)
4
54(1)
5(1)
8
23(1)
2
9
1
42.3
58.8
6.1
20.8
20.9
39.7
29.7
19.0
42.6
36
45(4)
0
28
60(2)
106
6(1)
44
38(13)
70(4)
26(3)
32
75(5)
86(3)
33(2)
45(1)
1
5
39(3)
22(1)
37(7)
6(1)
20(1)
9(1)
27
11(1)
7(2)
9
7
8
27
24
0
4
12
27
71
63(5)
15(1)
45(3)
36(2)
93(2)
45
9(1)
29(3)
27(3)
20(2)
12(2)
23(1)
35(3)
24(3)
20
7(2)
8(3)
1951
Creek
Creek
3
191
8
55(3)
76(3)
Ham-
Cronin
6(1)
30
36
11
8
1950
14
8.8
17,5
10
5(1)
12
24(1)
27(3)
29(3)
40(3)
Creek
4
Creek
Creek
No. 2
2/
Creek
Year
8(1)
0
1969
1970
16,6
44.9
45.2
Total
Creek
U
1
Mile
Creek
111(4)
301(20)
303(15)
128(4)
59(8)
117(4)
283(6)
394(11)
41(3)
139(4)
140(37)
266(14)
199(27)
127(8)
285(20)
230(11)
147(11)
122(7)
7
North-
0
Fish
Per
Oak
Ranch
west
Wolf
Cow
Surveys
Standard
N.Fk.
West
Humbug
ilton
Fishhawk
N.Pk.
Surveys for
Spawning Fish
Peak Counts on Nehaleui River
Coho Since 1950
Table 9
o
35.
33"
Table
Table 10.
10,
Peak Counts
Wilson River
River Spawning
Flsh Surveys
on Wilson
$rnreys
Peak
Counts on
SpawningFish
for Coho
Coho Since
Since 1950
for
1950
o
Standard Surveys
Cedar
Cedar
Year
I
o
.
o
a
1950
1950
1
95t
1951
1952
1952
1
955
1953
1954
1954
1955
1955
1956
1956
1
957
1957
1958
1958
1959
1959
1960
1960
l196].
96l
1
962
1962
1963
1963
1964
1964
1965
1965
1966
1966
19167
1967
1968
1968
1969
1969
r.970
1970
1
971
1971
Cieek
Ceek
27
27
1 1 8(8 )
118(8)
7s(3)
75(3)
(3)
4e
49(3)
(3)
14
14(3)
27
27
18(1)
1 8(r)
9
9
8
8
26
26
38(4)
38(4)
7
7(7 )
77(7)
(4)
88
88(4)
45(4)
4s (4)
47
47(1)
fr)
s
l(7)
51(7)
1 1( 1 )
11(1)
t22(8)
122(8)
(4)
54(4)
s4
42(7)
42(7)
116(8)
1 1 6(8 )
71(2)
7
L(2)
ueviis haKe orx
l{ilson
River
Wilson River
Lower
Upper
Upper
4
4
8
8
le (4)
19(4)
16(2)
16(2)
7
7
I
9
3
(1)
3(1)
47
47
l0
10
6
622
(3)
63
63(3)
(4)
66
66(4)
44(6)
44(6)
49
49
(2)
s6
56(2)
2
2
r5
15
12(1)
1 2( 1 )
10
10
20(4)
20(4)
60
60
26(2)
26(2)
5
5
6
6
I
0
0
1
2(r)
2(1)
22
0
0
0
0
0
0
0
4(1)
4(t)
14(2)
14(2)
13(1)
r3(r)
L7
17
3e(s)
39(5)
6
20
70
1 8( 1 )
18(1)
l14
4
22
l1].
1
22(s)
22(3)
1'.LU
Total
Total
36
36
r32(8)
132(8)
es(7)
95(7)
(s)
6s
65(5)
23(4J
23(4)
38(o)
38(0)
21(2)
2L(2)
s6(0)
56(0)
r8 (0)
18(0)
88(0)
88(o)
10s(8)
105(8)
157(13)
rs7(15)
145(11)
14s(rr)
111( 4)
111(4)
t42(8'
142(8)
se(7)
59(7)
46(1)
4 6( 1 )
rs2(10)
152(10)
78(4)
7B(4)
64(11)
6 4( 1 1 )
1 8 7( 8 )
187(8)
119(7)
1 1 e( 7 )
c
t
t
Itliles
Miles
o
O
2,9
2.9
0.3
0.3
0.2
0.2
3.4
3
.4
Per
Mile
Mile
10.6
10.6
38.8
38.8
27,9
27.9
1
9.1
19.1
6.8
6.8
Il.2
11.2
6.2
6.2
16.5
16.5
5.5
5.3
25.9
25.9
30.9
30.9
46,2
46,2
42,6
42.6
32,6
32.6
4 1. 8
41.8
17.4
17.4
13.5
13.5
44.7
44.7
22.9
22.9
18.8
18.8
55.0
55.0
35.0
35.0
a
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20(1)
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21.8
13.2
12
3
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39(2)
13(3)
16(3)
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11(2)
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22,0
33,8
28.8
28.6
21.0
20,2
15(1)
19(2)
9
16
13
1
v,
0.8
4(1)
16(2)
18(8)
23(6)
7(1)
20(7)
31(3)
29(15)
14(7)
11(1)
9(4)
5(1)
24(7)
13(0)
14
a
e
1.5
3
25
132
21
rJ.l
0.8
10
28(1)
13(2)
19(1)
16(2)
15(1)
10
13
20
4
13(2)
9
9
21(4)
0
6
11(1)
13(1)
16(1)
131
16
25(1)
32
49(1)
40
4(1)
14(1)
10
13(1)
16(3)
25(4)
61(16)
36(4)
33(2)
21(4)
24
38(1)
28(1)
37(4)
42(1)
56(5)
63(6)
15(1)
50(5)
3(1)
5(1)
1(0)
18
33
62
19(5)
46(5)
50(4)
7(1)
16(3)
5(1)
4(1)
23(5)
11(4)
6
5(1)
45(1)
22(1)
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
gt
1.5
E
.r{
()
Miles
15.4
63.6
55.0
17.8
19.2
13.6
9.6
13.0
9,2
11.0
9.0
19.0
77(6)
318(6)
275(7)
89(2)
96(8)
68(1)
48(5)
65(9)
46(7)
55(1)
45(9)
95(11)
58(5)
110(19)
169(25)
144(26)
143(20)
105(10)
101(12)
16(2)
109(17)
66(4)
47(1)
13(1)
Per
Mile
Total
Year
o
o
o
St
Niagara
Creek
Moon
Creek
Upper
East
Creek
Clear
Creek
Bear
Creek
Peak Counts on Nestucca River Spawning Fish Surveys
for Coho Since 1950
Table 1].
0
34,
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35(2)
30(5)
56(9)
57(2)
35(3)
27(3)
25(3)
20(3)
5(2)
15(2)
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15(3)
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6
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51
15(1)
32(1)
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24(3)
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4
27
9
1.5
263
376(18)
201(30)
151(31)
306(30)
290(47)
326(30)
150(29)
197(20)
87(15)
243(11)
326(12)
Creek
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
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lO(43)
79(6)
117
46(7)
87(1)
62(2fl
269(4)
128(11)
72(4)
171(20)
153(16)
212(17)
82(16)
113(4)
59(13)
154(4)
251(10)
Trib.
42(5)
13(0)
E
,d
Miles
35
4
9
9(3)
28(6)
8(2)
12(1)
3(1)
9(5)
11(1)
42(12)
26(2)
42(19)
54(7)
10(4)
19(5)
30(4)
58(7)
12(3)
27
20(9)
48(5)
25(12)
18(5)
6(1)
29(4)
Grant
S
43(3)
5(1)
5
0
65
11.6
80.2
23.9
5.2
19,8
12.1
28.0
45.5
13.8
26.6
19,5
67.2
35.9
34.1
54.7
51.8
58.2
449(19)
134(5)
29(3)
111(8)
68(2)
157(19)
255(13)
77(12)
149(4)
14(3)
4(2)
25(3)
Total
River
Creek
36(2)
190(4)
45(1)
6
17(3)
54(14)
15(1)
43
Per
Mile
Yaquina
Simpson
Salmon
Feagles
Year
Peak Counts on Yaquina River Spawning Fish Surveys
for Coho Since 1950
Table 12.
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S
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S
S
S
S
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16(3)
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310
60(18)
59(9)
36(8)
46(6)
24(3)
19(1)
17(5)
26(6)
13(4)
22(4)
40(12)
26(4)
55(16)
24(3)
25(3)
7(3)
8(1)
15(0)
t
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35
1
9(1)
4(3)
14(3)
54(10)
33(4)
10(3)
75(17)
25
40(7)
24(8)
37(5)
17(2)
12(0)
32(1)
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h
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Miles
o
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t{
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23(5)
Total
a
6
1.0
36(2)
17(7)
30(8)
75(4)
50(12)
72(5)
24(1)
73(5)
116(3)
37(4)
40(6)
30(1)
34(4)
33(1)
46(7)
29
44(1)
65
89(12)
85(3)
14(1)
18
20(6)
12(2)
3
0,8
11.4
58.4
42.9
12.7
37.3
34.1
45.7
30.2
12,0
28.0
22.6
47,7
21.6
39.8
63.5
58(10)
298(11)
219(17)
65(5)
190(5)
174(9)
233(30)
154(9)
61(1)
143(11)
115(30)
243(33)
110(10)
203(32)
324(41)
158(20)
214(36)
148(22)
133(8)
48(7)
61(8)
165(2)
62
\
o
Standard Surveys
Fish
Per
Mile
Wilson
Creek
Lobster
Creek
10(1)
46(4)
46(4)
14(1)
36
34(9)
65(7)
40(4)
4(1)
56(3)
44(1)
14
23(5)
58(4)
49(4)
12(3)
56(1)
34
18(2)
14
10
9(1)
17(3)
61(4)
21(1)
38(2)
34
57(3)
17(1)
40(2)
23
41(3)
Peak Counts on Alsea River Spawning Fish Surveys
for Coho Since 1950
Table 13.
Horse
Creek
Cherry
Creek
Bummer
Creek
Year
15(3)
76
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
S
S
S
I-
36.
0'
o
37.
37.
Table 14.
Table
t+.
o
.
o
o
o
C
o
SPaming
Creek Spawning
Beavet Creek
on Beaver
Peak Counts
Counts on
Peak
1950
Since 1950
CohoSince
for Coho
Fish Surveys
$rweys for
Fish
Standard Surveys
Year
Year
N.
F-k.
N. Plc.
Beaver
Beaver
Creek
1950
1950
1951
1951
19s2
1952
1953
1953
1954
1954
1955
1955
1956
1956
1957
1957
t1958
958
1959
1959
1960
1960
1961
1961
1962
1962
1963
1963
1964
1964
1965
1965
1966
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
1971
t2(2)
12(2)
179
179
47 (4)
47(4)
1 1( 2 )
11(2)
Miles
11
11
24
24
24(4)
24(4)
s2(2)
52(2)
(2)
ls
15(2)
32(t)
32(1)
2s(4)
29(4)
23(s)
23(5)
(3)
37
37(3)
N. Fk.
S. Plc.
of
of
of
of
FK.
N . Fk.
N.
Beaver
Beaver
Creekk
FK.
N.. Pk.
N
Beaver
Creek
s (2)
5(2)
80 (8)
80(8)
2s(4)
25(4)
2
2
(3)
13
13(3)
(3)
20
20(3)
18(4)
18(4)
22(3)
22(3)
0
0
J
5
0
0
s (1)
5(1)
(1)
e
9(1)
L7(4)
17(4)
1 l s( r 1 J
115(11)
20(1)
20(1)
e (2)
9(2)
13(3)
13(3)
8(2)
8(2)
27(t)
27(1)
32(2)
32(2)
e (1)
9(1)
6
6
1
1
2t(4)
21(4)
20 (5)
20(3)
ls (4)
15(4)
2s(10)
25(10)
20(o)
20(0)
26(s)
26(5)
40 (1)
40(1)
ls (s)
15(5)
(3)
39(3)
3e
17(3)
17(3)
46(s)
46(5)
1
8( 1 1 )
18(11)
17(s)
17(5)
25(5)
42(tr)
42(11)
14(s)
14(5)
2L(r)
21(1)
6(2)
6(2)
15(2)
4s (5)
45(3)
t2
12
rs(2)
6
6
e (5)
9(3)
s (0)
5(0)
s2(3)
52(3)
t12(1)
2(r)
3(0)
3 (0)
1.0
1.0
0
.5
0.5
2s(s)
18
18
2
2
Fish
Fish
TotaL
Total
14.8
14.8
34( 8)
34(8)
L62.6
374(19) 162.6
374(19)
40.0
40.0
92(9)
92(9)
9.6
9.6
22( 4'
22(4)
16.1
16.1
37( 6)
37(6)
22.6
22.6
5 2( 5 )
52(5)
30.0
30.0
69(9)
69(9)
46.1
46.1
1
06(7)
106(7)
10.4
10.4
24( 3)
24(3)
t8.7
18.7
43(1)
43(1)
l3.o
13.0
30(4)
30(4)
21.3
21.3
49( 10)
49(10)
(7)
28.7
287
66
66(7)
25,2
25.2
58( 25)
58(25)
(8)
3s.7
35.7
82
82(8)
27.4
27.4
63( 10)
63(10)
43.s
1 0 0 ( 1 2 ) 43.5
100(12)
13.5
1
3.5
31(10)
5
1( 1 0 )
(4)
28.7
28.7
66
66(4)
13.9
13.9
32(8)
32( 8)
28.7
28.7
66(7)
66(7)
67(4)
67(4)
o
o
L4
o
c
0.8
0.8
per
per
Mil
Mile
2.3
2.3
ze.L
29.1
o
38.
38.
Tab1e
Table 15.
15.
Standard
takes Standard
on Tenmile
Tennile Lakes
Peak
Counts on
Peak Cormts
I'950
for Coho
Coho Sinee
Since 1950
Sunreys for
Fish Surveys
Spawning
Spawning Fish
o
Fish
Year
Year
o
o
o
)
1950
1950
1951.
1951
1952
1952
1953
1953
1954
1954
1955
1955
19S6
1956
1957
1957
1958
1958
1959
1959
1960
1960
1961
1961
1962
1962
1963
1963
1964
1964
1965
1965
1966
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
t97L
Creek
Hatchery
Hatchery Creek
left
Left Fork
Fotk
7e(2s)
79(25)
279
279
315(52)
31s(52)
126(61)
1
2 6(6 1 )
(71)
166
166(71)
341(144)
341(144)
3
8 4 (1 76)
384(176)
248(77)
248
(77)
110(58)
1
1 0(s8 )
81(32)
8t ts2)
r21(83)
121(83)
173(72)
r73(72)
162(73)
r62(73)
r8s(1s1)
185(151)
87(47)
87(47)
(48)
7e
79(48)
es(3e)
95(39)
s3(27)
53(27)
s2(22)
32(22)
83(s4)
83(54)
241(111)
2
4 r$ 1 r )
46(6)
46 (6)
Right Fork
Fork
Right
Creek
Hatchery
Hatcher Creek
Total
37(11)
3 7( 1 r )
6e(38)
69(38)
79(27)
7e(27)
10(2)
1o(2)
42(18)
42(18)
74(28)
74(28)
72(13)
72(t3)
62(20)
62(20)
26(18)
26(18)
(6)
10(6)
10
1 3( 1 1 )
13(11)
6 (5)
6(3)
13(
4)
13(4)
4(1)
4(l)
r27 (67)
127(67)
80(37)
80(37)
49(21)
4s(21)
32(23)
32(23)
14(6)
14(6)
23(11)
23(11)
65(23)
6s(23)
116(36)
116(36)
348
348
394(79)
3e4(7e)
(63)
136
136(63)
208(89)
208(89)
415(172)
4Ls(L72)
456(189)
4s6(r8e)
11(2)
1 r( 2 )
s7(8)
57(8)
(e7)
310
310(97)
136(76)
136(76)
91(38)
el (58)
r54 (e4)
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189(152)
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214(114)
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19A
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40.
40.
Surveys
Fish $trtreys
Spawning Fish
Rivet Spawning
17. Peak
Peak Counts
on Coos
Coos River
Count$ on
Table 17.
1950
Coho
Since
Since
for
fot Coho
1950
o
Standard Surveys
Year
o
o
o
a
1950
1,950
1951
1951
1952
1952
1955
1953
1954
1954
1955
1955
1956
1956
r1957
957
1958
1958
1959
1959
1960
1960
1961
1961
r.962
1962
1963
1963
1964
1964
1965
1965
1966
1966
1967
1967
1968
1968
1969
1969
1970
t970
1
971
1971
Larson
Creek
Morgan
Morgan
Creek
Marlow
Marlow
Creek
Total
r58(21)
158(21)
327(77)
sz7(77)
254(26)
254(26)
65(19)
6s(re)
(33)
67(33)
67
96(18)
e6(18)
(72)
195(72)
1e5
49(6)
4e(6)
24(6)
24(6)
63(7)
65(7)
(so)
47(30)
47
(1
192(116)
1 s2 r6 )
129(31)
12e(31)
53(17)
s3(17)
52(11)
s 2( 1 r )
28(2)
28(2)
50(10)
5 0(1 0 )
53(11)
s 3( 1 1 )
26(3)
26(3)
45(7)
4s(7)
35(5)
5s(s)
6(1)
6 ( 1)
(3)
28(3)
28
68(12)
68( 12)
18(2)
18( 2)
15
15
33
53
20(6)
20(6)
18(3)
18(3)
15(6)
ls (6)
179(22)
t7e(2zl
388(80)
388(80)
342(44)
s42(44)
101(24)
10r(24)
(3e)
97(39)
e7
l15s
17
17
40(19)
40(1e)
( 2)
11(2)
11
2
2
10
10
10(3)
10( 3)
(4)
8(4)
8
25(12)
2s(1,2)
26(4)
26(4)
26(3)
26(3)
7
7
7
7
(s)
21(5)
2r
16(2)
16(2)
(s)
16(5)
16
16(2)
t6(2)
1
8( 2 )
18C2)
(s)
25(5)
2s
1.3
1
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1.0
1.0
1
1
32(2)
s2(2)
19(2)
re(2)
0
0
3
3
(7)
7(7)
7
46(12)
46ttz)
(Le)
27(19)
27
7(1)
7(r)
43(3)
45 (3)
16(4)
16(4)
6
6
6(1)
6 (1)
6
6
3(1)
5(1)
(1)
4(1)
4
33(1)
3
3( r )
114(18)
1
1 4( r 8 )
267(93)
267(e3)
79(10)
7s(10)
26(6)
26(6)
76(7)
76(7)
(40)
64(40)
64
246(132)
246(t32)
181(62)
181( 62)
86(22)
86(22)
121(17)
rzt(t7)
51(6)
sl(6)
(r0)
63(10)
63
80(17)
80(17)
(s)
48
48(5)
(13)
64(13)
64
(8)
55(8)
5s
76(8)
76 (8)
o
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o
MiLes
Miles
o
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1.0
1.0
3.3
5.3
Fish
per
Mile
54.2
54,2
117.6
1L7,6
103.6
103.6
306
3
0.6
294
29.4
34.5
34.5
80.9
8
0.9
23.9
7.9
7,9
23.0
23,0
19.4
1.9.4
74.5
7
4.5
54.8
5
4 .B
26.1
26.1
36.7
36.7
15.5
1
5.5
19.1
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24.2
24.2
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67(11)
o
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(t ra
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oqt
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o
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t> |> !? q! !t O I -t 09Or Fr t\ oo <) t.lrr? s cD \O
- rn \O 6
l,a ln 99C{ (\l rn |\ (\| rOF t\l \O lQ GlFr !4 Gt Ft
rn + C{
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33(3)
36(1)
5(1)
11(3)
o
o
o
tl*
11 |
14(1)
31(8)
55
5
Per
Zltl x
lF{ A)
Ioo
lg t{
IL' (J
5
(3 Ft N !O.rf !n \o F oo c't o Fr
9 r{ N rA $ rrl \O F €Ol
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gr ql gl Or O Ot 9t O) Ot O: O) Ot Ot Ot gr Ot Or Or CD Oi Ctt g)
Fl
\
B
s
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t0
'lJ
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's
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I
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s
s
B
s
E
'd
OJ
q
a
F
o
'tJ
s
t)
q)
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Fn
a
to
Counte made by Oregon Game Commission since 1958.
1/
9(2)
Fish
River 1/
12.5
24.7
16.3
21.2
12(2)
21(0)
18(3)
40(5)
15(4)
17(0)
55(9)
46(5)
28(4)
32(7)
2(1)
27(4)
16(1)
36(17)
33(6)
5(1)
4(0)
15(3)
20(3)
7
7(1)
11(1)
38(9)
73(4)
11(5)
95(5)
77(2)
60(2)
51(3)
32
5
5
232(14)
36(4)
91(2)
33
77(18)
143(13)
31(2)
184(4)
29(18)
52(12)
62(4)
43(12)
63(3)
95(4)
22(1)
55
50
110(18)
96(5)
26(6)
45(3)
20(12)
78(23)
100(7)
2
86
9(0)
7(0)
22(1)
117(3)
65(17)
44(7)
23(2)
69(35)
71(6)
28(4)
35(1)
11(2)
15(7)
49(18)
43(12)
10(1)
114(13)
148(25)
44(10)
50(15)
46(7)
68(14)
20(4)
56(4)
6
1.0
1.0
Miles
43.4
64.9
163.7
36.7
36.2
24.2
60.4
66.5
20.7
53.0
14.1
37.5
50.4
12.2
58.6
53.6
25.7
21.7
330(68)
493(48)
1,244(67)
279(45)
275(11)
184(5)
459(120)
505(31)
157(26)
403(11)
107(41)
285(83)
383(41)
93(28)
445(33)
407(35)
1)5(32)
165(29)
95(8)
188(30)
124(16)
161(15)
39(11)
54
77(23)
145(12)
191(15)
59(9)
56(2)
14(2)
96(17)
63
25(3)
11
Mile
Total
Salmon
Creek
N.Fk.Coguille River
Nortli
Middle
Cherry
Creek
Fork
Crk
61
94(18)
144(22)
316(20)
65(6)
57(16)
57(13)
383(15)
22(2)
24
50
76(24)
121(7)
38(9)
79(3)
21(1)
67(21)
38(3)
20(9)
113(5)
35(2)
28(1)
19(2)
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
S.Fk .Coquillo
Standard Surveys
E.Fk.Coquille
M.Fk.Coquille
River
River 1/
Steel
Big
Creek
Creek
Year
Peak Counts on Coquille River Spawning Fish Surveys
for Coho Since 1950
Table 18.
I
.
I
S
o
-
42.
42 .
Table 1'.
lf .
Spawnin Fish
.Stanclard Spat*ning
ay Standard
Peak Counts
on Tillaroo1
Tillarnoolr lay
Peak
Counts on
Chum Since 1950
Srnteys for
for Chum
Surveys
1950
o
Year
o
o
o
o
1950
1950
1951
1951
1952
1952
1953
1953
1954
1954
1955
1955
1956
1956
1957
1957
1958
1958
1959
1959
1960
1960
1961
1961
1962
1962
1965
1963
1964
1964
1965
l96s
1966
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
1971
Kilchis
ldris
RiVer
River
Clear
Clear
Creek
Creek
420
420
699
699
487
487
780
780
906
906
201
20L
102
n2
351
351
331
331
87
87
2
2
13
13
6
6
5
5
18
l8
0
0
12
T2
q
3
0
0
1
T
23
23
2
2
Standard Surveys
Miami
Wilson
lson
River
River
River
Rlver
Browns
Browns
Lower
Lower
CrEek
N.
Fk,
Creek
N. Fk.
256
256
r93
193
29
29
330
330
73
73
14
14
100
1
54
54
34
34
7
7
0
0
6
6
86
86
39
39
l18
8
0
0
50
50
31
31
9
9
4
4
142
L42
712
7L2
182
182
104
104
381
381
183
185
733
7
97
97
194
194
172
172
153
1s3
152
152
20
2A
27
27
25
25
109
109
13
13
61
61
87
87
25
25
107
LA7
50
50
64
64
94
94
1.0
1.0
0.5
0.5
Total
Total
818
818
1,604
1r604
698
698
1,214
l r2l4
1,360
1r360
312
3L2
306
306
577
s77
518
518
246
246
22
22
46
46
117
l17
153
153
49
49
61l
6
149
149
59
59
116
116
55
55
270
274
t69
169
o
o
t
o
o
Mil.es
Miles
0,8
0
.8
2.3
2.3
Figh
Fish
pet
per
Mile
l'lile
355.7
555.7
697.4
697.4
303.5
303.5
527.8
s27.8
591.3
591.3
135.7
135.7
135.0
133.0
250.9
250.9
225.2
225.2
107.0
1
07.0
9.6
9.6
20.0
20.0
50.9
50.9
66.5
66.5
21.3
zl.3
26.5
26.S
64.8
6
4.8
25.7
25,7
50.4
50,4
23.9
23,9
1I7,4
117.4
73,5
73.5
F.
43'
43.
Table 20.
20.
Miami
Peak Counts on Tillanook
Tillamook Bay
Bay Auxiliary
Auxiliary Spawning
Spawning Fish
Fish
Peak
1960
Surveys for
Chum Since 1960
Sunreys
for Chun
iver
Proutv
Prouty
Year
C
1960
1960
1961
1961
1962
1962
1963
1963
1964
1964
1965
1965
r.966
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
L97T
102
102
136
136
571
571
302
302
323
323
104
104
194
194
173
t7s
151
151
214
2t4
135
155
102
L02
l4iles
Miles
0.8
0.8
Creek
17
t7
4
4
0
0
3
3
178
u8
2
2
3
3
iS
15
42
42
0
0
33
33
62
67,
K
Kilehis
R.
!
Coal
Creek
Creek
104
104
154
154
I,142
1,142
802
802
870
870
404
444
1r 0 0 2
1,002
430
430
413
413
812
812
I ,393
1,383
889
889
. A
A
65
65
76
76
220
22A
165
165
65
65
30
30
61l
6
t8
18
37
37
34
34
85
85
105
105
Tillamook
River
River
--T-A
4
4
k'lSfl
Total
13
13
292
292
409
409
I1,994
,gg4
1r334
1,334
l r4s2
1,452
558
s58
1,334
1r334
677
677
654
654
1,075
1
,075
1,663
1
r665
1,171
l,l7l
0.8
0
.9
3.0
3.0
39
59
61
6l
62
62
16
l6
18
l8
74
74
41
4l
ii
I1
15
15
2 7 1/
4
27
.
1/
1/
0.2
0
,2
0.8
0.8
(rn eui'vey).
eunsey).
Estimated count
colnt (no
0.4
0.4
Per
Mile
l{i le
97.3
97,3
1
36,3
136.3
664.6
664.6
444.6
444.6
4
84,0
484.0
1860
186.0
444.6
444.6
225.6
22s.6
218.0
218.0
358,3
358.3
s54.5
554.3
390.3
390.3
o
-S
44.
44.
Spawning
Nestucca River Spawning
Poak Counts
on Nestucca
Table 21.
Counts on
Table
21. Peak
Since 1950
Fish Surveys
Chum Since
Sunreys for
for Chuttr
1950
o
Standard Sunreys
Fish
Year
Year
o
o
o
a
Clear
Creek
Cteek
56
56
73
73
43
43
1950
1950
1951
1951
r.952
1952
19S3
1953
1954
1954
1955
1955
1956
1956
1957
1957
1958
1958
1959
1959
1960
1960
1961
1961
196:
196:
178
t78
35
35
13
l5
88
88
165
165
36
56
6
6
57
156
156
19o3
1963
1964
1964
196
196
40
40
1965
1965
1966
1966
1967
t967
1968
1968
1969
1969
L970
1970
t97L
1971
35
3s
89
89
72
72
80
80
35
35
53
55
45
45
Miles
0.8
0.8
5'
S.
s7
Creek
Creek
No. 1I
No.
40
40
55
5s
15
15
44
44
100
100
35
5s
11
11
122
t22
120
r20
91
91
13
15
34
34
88
88
66
66
19
19
18
18
91
91
32
32
37
s7
20
20
28
28
20
20
Tota.l
Total
96
96
128
128
58
58
49
49
278
278
70
70
24
24
210
210
285
285
127
L27
19
19
91
91
244
244
262
262
599
5
53
55
180
180
104
t04
117
Lt7
55
55
81
81
65
65
o
o
o
o
1.0
1
.0
l.g
1.8
per
per
Mile
Mile
53.3
53.3
71.1
7 1 .1
32.2
32.2
27.2
27.2
154.4
154.4
38.9
38.9
13,3
13,3
116.7
116.7
158.3
158.3
7(5
7q,5
10.6
10.6
50.6
5
0.6
135.5
13s.5
145.5
1 4 5. 5
32.8
32.8
29.4
29,4
100.0
100.0
57.8
57.8
65.0
65.0
30.6
30.6
4
5.0
45.0
36.1
5 6 r.
o
ir
0
A
45.
4
5.
Table 22.
22.
Bay Spawning
Peak
Counts on Netarts
Peak Counts
Netarts Bay
Spawning
Fish
Fish Surveys
Sunreys for
Since 1953
for Chum
1953
Chun Since
o
Standard Survey
Fish
Year
o
a
I
o
Whiskey
Whiskey
Creek
Creek
1953
t 953
1954
1954
1955
1955
1956
1.956
19s7
1957
1958
1958
1959
1959
1960
1960
137
t37
502
502
96
96
131
131
672
672
337
337
147
t47
159
159
1961
196].
350
3s0
440
440
1962
t962
1963
1963
t1964
96'f
1965
196s
1965
1966
1967
1967
1968
1968
1969
1969
1970
1970
1971
1
971
317
317
365
365
79
79
160
160
480
480
200
200
Miles
0.4
0
.4
221
22r.
301
301
141
1
4L
per
Per
Mile
Mile
342.5
34?,.5
1,255.','
240.0
240.o
327.5
327.5
1,680.0
1,680,0
842.5
842.5
367.5
367.5
397.5
397.5
875.0
875.0
1,100.0
l.r1o0.o
552.0
552,n
752.5
7
5 2 s.
352.5
352.5
792.5
792.5
912.5
9t2.s
197.5
197.5
400.0
400.0 1//
1,200.0
1/
I , 2 0 0 . 0 7/
5 0 0 . 0a/
500.0
7/
S
a
i
,
o
a
y/
Eetinwted total
Eati,nated
totuL run
npt to
Wfui,skey
Creekmade
nadeby
ziskey Creek
0&r.
W OSli.
Run in
in excess
e&cess of
of 0511
O&l needa
needs une
wasallowe.d
allowed to spawn
ryaun
afuue
fury'rodnately 750,
above naak
rack (approximately
000 egge
eggs taken in
?6020A0
4n
7969and.
1969
and 1970; qprorinately
approximately ZB0r000
280,000 egge
eggs taken
7 9 7 7 ),
in
i n 1971).