C.M . 1987/H:I
Report of Activities
International council for the
Exploration of the Sea
PELAGIC FISH COMMITTEE
by
R.S. Bailey
1986
BELGIUM
(R. De Clerck)
No market sampling of pelagic fish has been carried out in 1986.
Research vessel surveys with bottom trawl on the juvenile herring
and sprat were continued as given in the table below.
The research was limited to density and length measurements.
Research vessel catches
- - - - - - - - -·Area
IV c
Belgian coast
Season
April and
September
Objectives
Recording densities of
immature herring and
sprat
Pinland
(R. Parmanne & v. Sjoblom)
No work carried out on pelagic fish other than tha t reported
to the Baltic Fish Committee.
- 2 -
FRANCE
(A. Maucorps)
SPECIES
Herring
Sampling
Area
I Seasonl type of fishl No of I No of fish I No of fishlNo of fishl
l examined I
I quarter I
I Samples I mesurated I
aged
I
I
I vessel!
I
I racially I
Adults
I 4 Aw
2
452
121
224
I
72
74
I
58
INorth1Western
I North
I Sea
I 4 c
I
I Southern I
I North
I
I Sea
I
I
I
I
I
Adults
I
1
IV
I
Adults
I
1
I 7 D
IV
Adults
I
6
2 018
I
311
I Southern I
I North
I
I
I Sea
Research vessel surveys
Area
4A - 4B - 4C
North Sea
4C - 7D
I Southern North Sea I
Date
10 jan. - 8 febr
13-29 november
Objectives
IYFS
Acoustic Survey
0
0
- 3 -
Federal Republic of Germany
(D. Sahrhage/H. Dornheim)
Species HERRING
Sampling
Area
Hebrides (01)
Season
I
II
III
W ofShetland (02)
I
II
III
NW-North Sea (03)
I
II
III
NE-North Sea (04)
I
Central North Sea
(09)
W of Ireland (10)
Southern North
Sea (12)
adult
i!h+juv.
adult
adult
i!h+juv.
i!h+juv.
ad.+juv.
i!h+juv.
adult
No. of Samples
Research Commercial
Vessel
8
12
10
3
6
7
32
84
9
-
No of Fish
measured
aged
692
1063
100
2133
121
784
99
27
1257
4583
9005
197
735
245
390
843
100
189
192
96
i!h+juv.
ad.+juv.
9
7
-
18
-
150
2379
I
i!h+juv.
juvenile
12
-
1103
283
214
II
III
i!h+juv.
1
7
-
18
4476
98
ad.+juv.
juvenile
56
1
6852 .
98
II
31
III
IV
ad.+juv.
juvenile
88
2
24
41
II
III
1
7
-
i!h+juv.
-
2
757
I
juvenile
1
-
53
III
NW of Ireland(06) III
South Buchan (08)
Type
of
Fish
I
adult
adult
30
2527
25355
1146
196
194
- 4 -
Research Vessel Surveys
Area
Hebrides (01)
Date
Objectives
03.02. - 22.02.86
Groundfish survey
17.02. - 28.02.86
Groundfish survey
Wof Shetland ( 02)
NW-North Sea (03)
Central North Sea (09)
Southern North Sea (12)
NW-North Sea (03)
10.02. - 17.03.86
NE-North Sea (04)
ICES young fish
survey
South Buchan (08)
Central North Sea (09)
Hebrides (01)
26.03. - 09.05.86
W mShetland (02)
Mackerel and other
pelagic fish survey
NW of Ireland (06)
W of Ireland (10)
Western Approaches (16)
Central North Sea (09)
13.05. - 18.05.86
Young fish and brown shrimp
survey
NW-North Sea (03)
12.06. - 31.07.86
Groundf ish survey
NE-North Sea (04)
South Buchan (08)
Central North Sea (09)
NW-North Sea (03)
12.06. - 23.06.86
Groundfish survey
Central North Sea (09)
16.09. - 19.09.86
Young fish and brown shrimp
Hebrides (01)
14.07. - 08.08.86
Pelagic fish survey
Central North Sea (09)
03.11. - 17.11.86
Groundfish survey
Central North Sea (09)
1. to 4. quarter
Shrimps by catch
survey
W of Shetland (02)
NW of Ireland (06)
W of Ireland (10)
Western Approaches (16)
investigations
- s -
Species SPRAT
Sam~
Season
Area
N- North Sea IVa
Central North Sea IVb
No of SamQles
Research Commercial
I
10
II
10
I
44
II
NW of Scotland VIa
No of fish
measured
-
463
1
1982
281
12
675
III
47
8
2525
IV
2
24
1783
II
7
-
25
Research Vessel Survey
Area
Date
Objectives
Central North Sea IVb
03.01. - 16.01.86
Groundfish survey
N-North Sea IVa
10.02. - 17.03.86
ICES young fish survey
26.03. - 09.05.86
Mackerel and other
Central North Sea IVb
NW of Scotland VIa
W of Ireland VII b,c
pelagic fish survey
S of Ireland VII g-k
Bay of Biscay
VIII
N-North Sea IVa
N-North Sea IVa
12.06. - 31.07.86
Groundfish survey
Central North Sea IVb
Central North Sea IVb
16.09. - 19.09.86
Young fish and brown
shrimp survey
Central North Sea IVb
03.11. - 17.11 .86
Groundf ish survey
Central North Sea IVb
1. to 4. quarter
Shrimp by catch investigation
- Ii -
Species MACKEREL
Sam~
Area
N-North Sea IVa
Season
I
II
Central North SeaIVb
NW of Scotland VIa
W of Ireland VIIb,c
Bay of Biscay VIII
ad.+juv.
adult
III
!!!!..:_+juv .
I
ad.+juv.
No of samQles
Research vessel
14
3
7
III
ad.+juv.
I
!!!!..:_+juv.
11
II
!!!!..:_+juv.
III
ad.+juv.
22
29
II
adult
ad+juv.
II
!!!!..:_+juv.
III
!!!!..:_+juv.
II
adult
III
adult
No of fish
measured
8
39
III
S of Ireland VIIg-k
Type
of
fish
8
6
46
12
28
2
aged
44
4
665
23
1437
938
2835
1927
2041
936
10040
458
4674
5
157
98
149
100
195
295
195
846
100
489
- 7 -
Research Vessel Surveys
Area
N-North Sea IVa
Date
Objectives
03.02. - 22.02.86
Groundf ish survey
10.02. - 17.03.86
ICES young fish survey
26.03 . - 09.05.86
Mackerel and other
NW of Scotland VIa
N-North Sea IVa
Central North Sea IVb
N-North Sea IVa
NW of Scotland VIa
pelagic fish survey
W of Ireland VII b,c
S of Ireland VII g-k
Bay of Biscaya VIII
N-North Sea IVa
12.06. - 31.07.86
Groundf ish survey
14.07. - 08.08.86
Pelagic fish survey
Central North Sea IVb
N-North Sea IVa
NW of Scotland VIa
W of Ireland VII b,c
S of Ireland VII g- k
Bay of Biscay: VIII
- 8 -
Species BLUE WHITING
Sampling
Area
N-North Sea IVa
Season
No of samples
Research vessel
II
2
III
6
No of fish
measured
179
695
Research Vessel Surveys
Area
N-North Sea IVa
Central North Sea IVb
Date
Objectives
12.06. - 31.07.86
Groundfish survey
- y -
Species HORSE MACKEREL
Sam~
Area
Seaso n
N-North Sea IVa
No of sameles
Research vessel
4
II
Central North Sea IVb
NW of Scotland VIa
W of Ireland VIIb,c
S of Ireland VII g-k
Bay of Biscay. VIII
No of fish
measured
III
3
679
III
25
2297
II
16
1662
III
43
10596
II
8
III
15
3632
4201
20861
II
46
III
29
9253
II
32
25422
III
10
2213
Research Vessel Surveys
Area
Date
N-North Sea IVa
26.03. - 09.05.86
Objectives
Mackerel and other
pelagic fish survey
NW of Scotland VIa
W of Ireland VIIb,c
S of Ireland VII g-k
Bay of Biscay
VIII
N-North Sea IVa
12.06. - 31.07.86
Groundfish survey
14.07. - 08.08.86
Pelagic fish survey
Central North Sea IVb
N-North Sea IVa
NW of Sco tland VIa
W of Ireland VII b,c
S of Ireland VII g-k
Bay of Biscay
VIII
- 10 -
GERMAN DEMOCRATIC REPUBLIC
(L. Danke}
Blue Whiting
...):11.:
21i 118
Je oson
.\:-e:i
:~o
Ho of fish
of
Q uarter~:;-en-r::if-Ves_s_e_r
-c-6 r:l:·:fr:?·r-cial vesse-:_imeasui-eU faged
b,c
I
1
722
50
/I. J. :j-:~
I
5
2743
150
'/I I
s-1~
I
5141
3,ig
'""1"
J
II
II
D
III
II
;::;
III
:;::r
n
III
1:~·)
·~.;.J
1
2G8
100
5
/I I
:3
19
24
,)_.).J
2G27
n
589
4-J
,J
-· --
III
'/
~)~~/ ~2
III
J29
11'J
I~
..
III
L·.1,)
""
3074
300
'./
'/1
III
1
200
I I
"'
:·./
10
2035
, !0seo :--ci·1 vcsse l
survey
Date
\r90
;.:o i-'."le s::.:J ii
:J.~J.-:i . J.1J~:\
..~ :Jo
.jpits~srgon/3cor
Islnr1d
1<3 t toga t / .>'. -: a LO: r 1·nk
,,(J1-t'1
r=n:-oss
...;Q3
C~ i-ound::>
OJjectiveG
.\cous tis urvcy
micl':Jatc i:-aviling
l1yc.i;·o g l·op "/
- 11 IRELAND
(J . Molloy)
s2ecies:
Sam£lir:!g_
Area
Season
Via South
I,IV,V
VI,VII,
VIII,IX
Type of
fish
Herring
No. of
No. of
No. of
fish
samples fish
(market) (measured) aged
No. of
fish
examined
racially
Adult
29
4 705
1 217
1 217
Adult
14
2 406
567
567
Adult
40
3 008
1 483
1 483
VII,VIII, Adult
IX
21
4 404
1 003
1 003
x
VIIb,c
III,IV,
VI,IX
VIIj +
X,XI,
Celtic Sea
VI Ia
Irish Sea
s.eecies: Mackerel
VIa South I,V,VI,
North West,X,XI,XII
Adult
15
1 957
1 272
VIIb,c
West
II,III,
IV, XI
Adult
8
1 264
417
VIIj +
II,III,
Celtic Sea IV,V,
VI
Adult
8
542
441
S2ecies:
VIIj +
I,XI,
Celtic Sea XII
Adult
18
2 623
S2rat
None
Research Vessel Surveys
Objectives
Area
Date
VI Ia
February
Young Herring Survey
VI a
May
Mackerel egg survey for the
Fishing Industry
VIa + VII
b,c
October
Young mackerel survey
VIa +
VIIb,c
Oct-Nov
Young herring survey
None
- 12 -
NETHERLANDS
(A. Corten & A. Eltin k )
Sampling data for Herring.
Quarter
of year
Area
Type
of fish
No. of Samples
research
No. of fish
market measured aged
vessel
NW North Sea
South Buchan
Central North Sea
Southern North Sea
VIa North
VIa South + VIIb, c
+
"
Celtic Sea + VIIj
2
3
4
2
3
2
adult
3
.."
1
3
4
3
4
3
4
2
"
"
"
"
-
-
"
-
"
"
"
-
"
"
-
"
"
-
3
23
2
3
3
1
16
8
1
16
14
5
4
2
1
102
Total
478
3,301
314
696
489
167
2,584
1,489
48
2,544
1,512
746
392
281
169
examined
racially
75
575
50
75
75
25
400
200
25
400
350
125
100
50
25
15,210 2,550
Sampling data for Mackerel.
Area
Quarter
of year
Type
of fish
No. of Samples
research
vessel
IVa Northern North Sea 3
4
IVb Central North Sea 2
3
4
IVc Southern North Sea 2
3
4
Vla NW Ire land
l
3
4
VII South of Ireland
1
2
3
4
Total
adult
"
"
"
"
"
"
"
"
"
"
"
"
"
"
-
-
No. of fish
market measured aged
25
100
25
100
25
50
50
75
125
50
150
675
475
50
25
4
1
4
1
2
2
3
5
2
6
27
19
2
1
96
220
34
365
58
343
227
328
314
144
539
1,875
1,915
215
176
80
6 , 849 2,000
l
examined
racially
- 13 -
Herring/Research vessel surveys
Area
Dates
IVa,b,c North Sea
IVa Northern North Sea
IVb Central North Sea
IVc + VIId Southern North Sea
IVc Dutch Waddensea
6
3
3
8
26
feb sep sep dee march-
Objectives
1 march
23 sep
25 Sep
19 dee
24 april
ICES
ICES
ICES
ICES
Young Fish Survey
Herring larval survey
Herring larval survey
Herring la rval survey
Herring larval survey
Mackerel + Horsemackerel/Research vessel surveys
(A. Eltink)
Area
Dates
Objectives
VII Celtic Sea
VII Celtic Sea
12 may - 19 july
10 nov - 29 nov
ICES egg survey
o-group survey
Sampling data for Horsemackerel
Area
Quarter
of year
Type
of fish
No . of samples
research
No. of fish
market measured aged
vesse l
IVb Central North Sea 4
IVc Southern North Sea 2
3
4
1
VIa NW Ireland
3
4
1
VII South of Ireland
2
3
4
Total
adult
"
"
"
"
"
"
"
"
..
"
-
-
-
examined
racially
1
1
3
1
1
3
2
4
8
8
38
133
25
25
75
25
25
75
50
100
200
200
27 5
11
284
103
239
260
280
530
871
1,527
1, 296
43
5,561 1,075
- 14 -
NORWAY
(0 . Dahl & I . Ro tt ingen)
Herring (Cl~Qga tlarfngys)
Sampling
Area
Season
Type
of
fish
-- - - Research
vessel
Market
No.of
fish
measured
No.of
fish
aged
No.of
fish
exam.
racially
Skagerrak
I Ila
I
Mixed
Adult
lmmat
2
1
It
JV
.,
2
220
200
700
220
200
700
1 00
200
500
Northern
Nartt1 Sea
!Va
l
II
Ill
IV
Mixed
Adult
Mixed
Mixed
1
1
5
140
336
160
160
14 000
33000
16000
16000
700
600
1200
700
500
600
1 000
500
c oast !Va
IV
Immat.
5
299
299
299
CentrJl
No r th Sea
!Vb
I
II
lmmat.
Adult
4
1
57
12 7
4
500
5500
12000
2000
400
100
700
1500
300
100
500
1000
4
400
500
100
100
Norwegian
NW North
Se d
Vl a
111
Mixed
JV
Jmmat.
Ill
JV
Adult
Adult
19
5
- - - - - - -- -·-------------- -- ---- -·------ - - ---- ·
Research ves s el survey
Area
Season
Objectives
North Sea
Jan/Feb
Int.Young Fish survey.
herring
The Norw. coa s t
from Stavanger to
Va ranger fjord
Oct/Nov/Dec
Fish survey, 0-group
sprat/herring
North Sea/
Skagerrak
Nov/Oec
Herring acoustic survey
Tagging
Area
No r th Sea
Season
Nov
Type of Tag
No tagged
Type of fish
Int.steel
9300
Herring
- 15 -
Sprat ( Sprattus
Sampl.1ng
spratt~I
- --- - - - ----------Area
Norwegian
Season
Type
of
fi s h
[V
Hi><ed
IV
Mixed
No.of samples
Researc~1
vessel
Market
No.of
fish
measured
10
No.of
fish
aged
1000
100
1 00
100
coast
!Va
Northern
North Sea
!Va
Research vessel. surveys
Area
Season
Objectives
North Sea
Jan/Feb
Int. Young Fish Survey,
sprat
The Norw.i:oa s t
from St avar1ger lo
Varangerfjord
Oct/Nov/Dec
Fish survey, O- gr11up,
s prat/herring
- 16 -
Mackerel (Scomber scombrus)
Sampling
·-- - -- -- ------ - - -Season
Area
Type
of
fish
No.of
fish
No. of sa mple s
Research
vessel
Market
--·--- - - - - - - - - - - - - - -- ·
Norwegian
I Ia
No.of
fish
aged
measured
--- - -~---·
I II
Mixed
4
4DO
40D
Skagerrak
II
IIIa
III
Mixed
Mixed
1
2
·1 DD
2DD
1DD
2DD
2
14
5
3DD
170D
5DD
3DD
17DD
5DD
1DO
3DD
1DD
30D
1DD
100
500
~00
Sea,
North ern
II
Mix~d
1
North Sea
!Va
III
IV
Mixed
Mixed
3
Central
II
Mixed
North Sea
!Vb
Ill
Mixed
1
3
NW North
Sea, Via
IV
Mixed
SW Ireland
VI lg-k
11
Mixed
-
1
5
·-- - - - - - - --·- - - - - - - - - - - - --- - - - - -- ---
Research vessel s urvey
Area
Season
North Sea
Jun - .Jul
Objectives
Spawning survey
Eggproduclion
North
Sea/Skagerrak
Fish survey,
mackerel
Nov-Dec
I-group
Tagging
Area
Season
-
Type
of tag
SW Ireland,
VI lg-k
May
Int.
North Sea
Skagerrak,
!Va,b, I I I a
Jul/Aug
Int. steel
steel
No.
tagged
Type of
fish
18 015
Mackerel
15 001
Mack erel
- 17 -
Herring ( Clupea harengus I North of 62 ° N
SamQlill
Area
Season
Barents Sea
No. of samples
Research
vessels Market
No. of
fish
measured
No. of
fish
aged
378
135
18
4
3
1
0
0
154 8
206
Ill
13
14
15
JV
43
13 2
20
0
45
1113 7
no9
1263
9666
2427
1236
1031
3581
10
0
532
220
121
19 8
26967
9012
I
II
Ill
Norw. coast
11 a
I
Juv.
Hi><ed
11
coast
Norw.
Type
of
fish
11
Juv.
No . of
fish
e><am. rac.
5
11 I
1Jb
Total
Rt?search vessel surveys
Date
o
A1 €.
Norw~yiar1
coa~t
Ila
Objectives
Experin1er1tal fishing,
acoustic suruey of
s~awning stoc.k
Tagging
February-March
April-May
Nllrwt:gian Sea/
Edrents Sea Jla/l
Hay
Acoustic survey,
juvenile herring
August
0-group distribution
Barent s Sea I la/I
September
Acoustic survey
Norwegiar1 toast I/Ila
November-December
0 - group survey
Norw1: 91 ~~11
CdrE·11t~
:. cd/
Sea llo/l
~
Ar~o
Nurw.
coast
Season
1ype of tags
11
intl'rnal
No. tagg.
3B9C
lype of fish
adult
Recoveries
- 18 -
Capelin (Hallotus villosus)
S a m2.l!llil
Area
Barents Sea
I - Ila - !lb
Season
I
1ype
of
fish
Hixed
II
111
IV
No. of samples
Research
vessels Market
52
41
69
12
No. of
fish
measured
No. of
fish
aged
4449
3458
3811
790
3898
2415
3006
201
No. of
fish
exam . rac.
Jan Mayen
Va
XI Va
I
111
Spawn.
Adult
1otal
12
'27
12
1907
2167
1835
1646
186
39
16588
13001
Resedrch vessel surveys
Area
Barents Sea 1,11
Barents Sea 1,11
Barents Se& J,JJ
Barents Sea J,JJ
Norwegian Sea 11,XIVa
Date
5/ 1
28/4
H/5
6/9
28/7
Objective"
23 / 1
25/5
2on
15 / 1 0
20/8
Acoust.surv.prespawners
Acoust.surv. immatures
Larval survey
Acoust.surv.total stock
Acoust.surv.matures
- 19 -
Blue whiting (Micromesistius potassou)
Sampling
Area
Barents Sea
I, IIb
Norwegian Sea
II a
Northern
North Sea
I Va
Season
Type
of
fish
III
Mixed
IV
II
III
IV
No . of samples
Research
vessels
Market
No . of
fish
measured
No. of
fish
aged
4
1
172
116
29
58
10
2197
4293
505
1203
4059
100
2
200
800
333
100
50
546
279
100
5
2
4
798
884
788
669
125
17
10382
7910
I
II
3
9
III
IV
West of the
British Isles
Farces, Vb, VIa
VIb, VIIbc,
I
II
6
TOTAL
100
2
7
Research Vessel surveys
Area
Date
West of the
British Isles, Vb, VIa,
VIb, VIIbc
12 March-6 April
Norwegian Sea Ila
Northern North Sea IVa
22 July-18 Aug
Objective
Acoustic assessment
and structure of stock
- 20 -
Polar cod f8oreogadus saida)
Sampling
Area
Barents Sea
I, II
Season
Type
of
fish
I
II
II I
JV
Total
Research vessel
Area
No. of samples
Research
vessels Hetrket
No. of
fish
No. of
fish
measured
age,d
exam. rac .
21
6
12
15
1568
525
6031
707
11 4
8831
81
75
2508
0
2610
surve~s
Datt-
Barents Sea I. I I
Barents Sea I. I I
Barents Sea I . II
No. of
fish
~/ 1
23 / 1
28/4 - 25/5
6/9
15/ 10
Objectives
Att•U$lic ~urv.imm.
Acoustic surv.imm.
Acoustic surv.tot.stock
- 21 -
Greater Silver Smelt
!Argentina silus)
Sampling
Area
Season
Type
of
fish
Barents Sea
I
IV
Adults
Norwegian Sea
Ila
Northern
North Sea
!Va
West of the
British Isles
VI a
II
III
IV
II
III
No. of samples
Research Market
Vessels
.
.
II
TOTAL
No . of
fish
measured
No. of
fish
aged
19
6
9
2722
181
358
2006
103
30
2
3
83
54
82
2
112
95
3529
2322
2
26
8
52
15
15
Research vessel
surveys
Area
Norwegian Sea
Ila
Date
1-19 April
Objective
Acoustic survey,
structure of stock
and catchability
- 22 -
SPAIN
(C. Porteiro et M.A. Rodriguez)
Echantillonnages
Espece: Sardina pilchardus
Region Trimestre Type de
Nombre d'
No. de No.de poissons Classes
par
poisson echanti llons poissons
dont age
determine
race
Bateau Marche mesures
l
2
VI 1Ic
3
Adultes
et
immatures
4
IXa
27°N
ii
28°N
22°N
ii
26°N
l
2
3
4
Adultes
et
immatures
l
2
3
4
Adultes
et
immatures
l
2
3
4
Adultes
et
immatures
16
--
2095
761
17
--
1037
304
---
4
2
33
50
52
29
4077
4725
4889
3128
1026
389
409
573
-----
15
21
71
99
803
3889
15694
21890
--
19
58
18
23
3195
9450
3592
4501
-----
179
269
Espece: Trachurus trachurus
Region Trimestre Type de
Nombre d'
No. de No. de poi ssons Classes
par
poisson echant i 11 ons poissons
dont age
determine
race
Bateau Marche mesures
VII le
IXa
l
2
3
4
l
2
3
4
5
--
31
20
6
--
10
6
-----
297
297
760
2407
760
6
12
26
19
1189
948
2175
1673
798
--
--
--
130
428
- 23 -
Espece: Scomber scombrus
Region Trimestre Type de
Nombre d'
No. de No.de poissons Classes
poisson echantillons poissons
dont age
par
determine
race
Bateau Marche mesures
4
7
30
14
5
-----
84
739
58
262
84
739
58
262
4
2
3
4
8
16
l
2
723
8
15
6
103
743
990
653
146
5
311
l
2
3
Ville
lXa
Espece: Micromesistius poutassou
Region Trimestre Type de
Nombre d'
No. de No. de poi ssons Classes
poisson echantillons poissons
dont age
par
Bateau Marche mesures
determine
race
l
2
VI! le
3
32
31
--
--
2578
2889
2578
2889
--
19
23
27
26
2240
4227
5348
3079
38
1643
2538
105
4
l X3
l
2
3
4
19
19
--
CAMPAGNES DE NAVIRES DE RECHERCHE
Region
Date
Object if
Vlllc
Mars
Estimation de l 'abondance de sardine par classes
d'age. Distribution pendant la saison de ponte.
Novembre
Estimation de l 'abondance par classes d'age et du recrutement de la sardine.
lXa
VII le
lXa
- 24 -
SWEDEN
(O. Hagstrom)
HERRING
Sampling
Area
Season
Type of fish! No. of Samples
No. of Fish
No. of Fish
' Rese~rch
Vessel
Kattegat
Skagerrak
examit"led
I, II, Ill
10
I
IV, V, VI
-
I
VII, VIII,
IX
18
X, XI, XII
I, II, Ill
26 357
2 749
22 153
1 036
892
84
31 586
2 !l81
1 34()
4
37
12 157
995
995
10
3
5 180
1 424
1 063
I
-
6
22
24
X, XI, XII
1
1
Baltic
I, II, Ill
5
North Sea
IV, V, VI
2 839
450
316
3 581
1 527
613
117
117
-
3 333
1 729
1 729
1
414
90
90
300
108 074
15 052
10 238
II
·· --· ·----
70
RESEARCH VESSEL SURVEYS
Area
Season
Kattegat, Skagerrak
Baltic
II, Ill
Kattegat, Skagerrak
IX
2 169
13 442
-··- - - - - ·- - .... - ..----
Total
racially
72
IV, V, VI
· - · - - - - - ---·-·
Aged
72
VII, VIII,
IX
-
Measured
Market
Objectives
Investigation on young fish;
herring larvae and stock separation
Acoustic survey; herring, sprat
I
II
- 25 -
UNITED KINGDOM
---
(England and Wales)
(P.O. Johnson)
Sampling
HERRING
ICES Div.
(Area)
Quarter
I Va
(N. North Sea)
3
I Vb (E of 3°E)
1
Type
imm./
mat.
juv/
No.of Samples No.
R.V.
comm. Measured
No.
Aged
No.
examined
racially
2
260
153
153
25
2,905
809
809
2
273
117
117
-
2,352
1'075
1'075
-
142
842
98
359
98
359
684
286
286
537
581
354
325
354
325
2, 101
837
837
299
358
151
196
151
196
188
31
112
30
112
30
imrn.
(East Central
North Sea)
3
imm.
I Vb (W of 3° E)
1
(W. Central
North Sea)
3
3
juv./ 24
imm.
imm.
1
mat.
4
IVc
(South North
Sea)
1
juv./ 10
imrn.
(Thames Stock)
1
4
mat .
mat.
(Wash-Thames
Coastal)
3
juv.
(East Anglian
Coast)
2
4
spent
mat.
VIIe (West
Channel)
1
2
mat.
spent
3
3
17
1
2
1
1
- 26 -
SPRAT
ICES Div.
(Area)
Quarter
Type
No.of Samples No .
R.V.
Comm. Measured
IVb (E of 3oE)
(East Central
North Sea)
1
imm. I
mat.
18
IVb (W of 3o E)
(W. Central
North Sea)
1
imm. /mat.
mat.
15
1
IVc
(South North
sea)
1
imm./mat.
"
11
(Wash-Thames
Coastal)
3
juv./imm
16
(Suffok Coast)
4
mat.
VIIe (West
Channel)
1
1
4
4
mat.
"
-
1 '441
487
-
499
92
240
65
6
516
1,250
234
437
1 '231
202
3
489
134
2
365
123
269
486
106
55
148
87
1
2
"
"
3
No.
Aged
MACKEREL
ICES Div .
(Area)
VIIe
VIIj
VIII a
VIIIb
VIIe
VIIh
VIIj
VIIb
VIIj
VI Ia
IVc
I Vb
I Va
VIIe
Quarter
1st
1st
1st
1st
2nd
2nd
2nd
3rd
3rd
3rd
3rd
3rd
3rd
4th
Type
of
Fish
Mack .
Mack.
Mack.
Mack.
Mack
Mack.
Mack .
Mack.
Mack .
Mack.
Mack.
Mack.
Mack.
Mack.
No.QI Sgmples No.
R.V.
Comm. Measured
3
5
2
2
4
1
4
1
1
1
1
5
1
4
320
600
140
140
430
120
450
116
147
130
52
250
92
278
No.
Aged
No.
examined
racially
440
448
178
162
87
114
212
116
147
130
52
157
92
186
PILCHARD
ICES Div .
(Area)
VIIe
VIIe
Quarter
Type
of
Fish
2nd
1st
Pil .
Pil .
No Qf sample§ No.
Comm. Measured
R.V.
2
1
210
60
No.
Aged
145
60
No.
examined
racially
- 27 -
SCAD
-ICES Div.
(Area)
VIIk
VIII a
VIIa-k
VIIIb
VIIh
VIIj
VIIh
VIIj
VIIg
Quarter
Type
of
Fish
1st
1st
1st
1st
2nd
2nd
3rd
3rd
3rd
Scad
Scad
Scad
Scad
Scad
Scad
Scad
Scad
Scad
No.QI
R.V.
1
1
1
1
1
1
1
1
1
No .
Comm. Measured
~am2les
-
-
156
151
135
147
132
133
24
28
16
No .
Aged
No.
examined
racially
24
28
4
Research Vessel surveys
MACKEREL
Area
Dates
Objectives
Vessel
VIId,e
(Channel)
3-23 Jan
Mackerel Acoustic Survey
Cirolana
VIIg - j
(Celtic Seasw Approaches)
10 Mar7 Apr
Juvenile Mackerel Distribution (part of multispecies survey)
Cirolana
VIIb · h: VIII
(W. Ireland Biscay)
9 May5 Jun
Mackerel Egg Survey
(ICES)
Cirolana
VIIg-j
(Celtic SeaWestern
Approaches)
14 Jul30 Jul
Mackerel Distribution
(part of multispecies
survey)
Clione
VIIg - j; VIII
(Celtic SeaBiscay)
28 Nov22 Dec
Mackerel Distribution
(part of multispecies
survey)
Cirolana
HERRING/SPRAT
Objectives
Area
Dates
Vessel
IVc/VIId
{S. North
Sea/E.Channel
3-13 Jun
Herring Larval Survey
Clione
IVc
(Wash-Thames
Coastal)
15-23 Jul
Inshore 0-Group
Herring Survey
Dawn
Hunter
(Charter)
IVb (W of 3°E)
(W. Central
North Sea)
20 Aug4 Sep
Acoustic Survey for
"Banks" Spawning
Herring
Clione
VIIe
(West Channel)
1-19 Dec
Acoustic Survey for
Pelagic Specie:c
(Mackerel, Sprat, Scad
and Pilchard)
Clione
- 28 -
Scot l and
(R.S. Bailey )
Herring
Sam~ling
No of Samples
Type of Research Market
Fish
Vessels
No of Fish
Measured Aged Examined
Racially
Area
Season
South Buchan
Jan-Mar
Jul-Sep
Juv
Juv
Adult
14
2
8
0
0
10
1950
277
3897
304
22
627
0
0
0
Central
North Sea
Jan-Mar
Jul-Sep
Juv
Juv
Adult
Mixed
23
7
4
5
0
0
3
0
5554
147
1240
992
299
291
61
0
0
0
0
Juv
Adult
Mixed
Adult
Adult
Mixed
Adult
8
12
13
0
53
8
I
0
11
0
8
87
0
13
2055
4161
1933
1590
18207
1763
2577
144
938
219
505
2981
414
562
0
0
0
0
540
180
0
Juv
Mixed
Juv
Adult
Mixed
2
l
1
l
I
0
0
0
0
0
26
23
1
2
90
2
5
0
0
28
0
0
0
0
0
Juv
Adult
Mixed
Adult
Adult
Juv
Adult
Mixed
5
10
8
0
0
1
8
4
0
6
0
l
19
0
18
JO
646
2919
652
237
2761
16
6248
4852
231
1125
253
139
989
0
770
1393
0
0
0
0
0
0
0
0
Juv
Adult
Adult
Adult
Mixed
1
8
2
4
1
0
0
0
0
0
7
1425
13
397
7
0
510
11
83
6
0
0
0
0
0
Nor th Western
North Sea
Jan-Mar
Apr-Jun
Jul-Sep
Oct-Dec
North Eastern
North Sea
Jan-Mar
Jul-Sep
Via North
Jan- Mar
Apr-Jun
Jul-Sep
Oct-Dec
Via South
Jan-Mar
Apr-Jun
Oct-Dec
23
- 29 -
Herring SamEling (contd)
Area
Season
No of Samples
Type of Research Market
Vessels
Fish
Jan-Mar
Clyde
Apr-Jun
Jul-Sep
Oct-Dec
2
2
6
5
2
0
0
8
2
Juv
Adult
Mixed
Adult
Mixed
Adult
Mixed
Juv
Mixed
0
0
0
52
0
80
7
0
3
No of Fish
Measured Aged Examined
Racially
77
246
1401
9746
443
9570
1003
142.9
1320
33
97
498
831
163
682.
2.74
182.
369
0
0
0
0
0
0
0
0
0
~
Area
Northwestern
North Sea
Season
Tag type
July
Floy T tags
No tagged
14662.
Type of fish
Recoveries
Adult
144
Research Vessel Surveys
Area
Season
Objectives
Northwestern to Southeastern
North Sea (Areas IVa, IVb)
February
International Young Fish Survey
North and West of Scotland
(Area VIa)
Feb-Mar
Recruit Trawling Survey
Firth of Clyde
March
Larval Survey and Trawling
Survey
Firth of Clyde
April
Larval and Trawling Survey
Firth of Clyde
May-Jun
Acoustic and Trawling Survey
Northwestern North Sea
July
Acoustic and Trawling SurveyZ
(contd)
Notes
2.
In accordance with C. Res. 1980/2.:2.4.
- JO Research Vessel Surveys (contd)
Area
Season
Objectives
VIa (North) and Northwestern
North Sea
Aug-Sep
Larval Survey and Herring
Patch Studyl
South Buchan
September
Larval Surveyl
Vla (North) and Northwestern
North Sea
September
Larval Survey 1
Vla and Northwestern
North Sea
October
Larval Surveyl
VI a
November
Acoustic Survey for Herring
and Mackerel
Notes
In accordance with previous ICES resolutions.
Additional Research Activities
Otolith studies of the Clyde herring using computer digitisation of oto!ith
measurements to investigate stock mixing.
Sprat Sampling
No of Samples
Area
Research
!Va Northern
North Sea
!Vb Central
North Sea
No of Fish
Season
Commercial
Measured
Aged
Jan-Mar
Apr-Jun
Jul-Sep
Oct-Dec
20
-
2737
341
7
-
514
1635
45
Jan-Mar
Apr-Jun
Jul-Sep
Oct-Dec
27
3983
468
-
6
6
-
221
(contd)
- 31 -
S12rat Sam12ling (contd)
No of Samples
Area
No of Fish
Season
Research
Commercial
Measured
Aged
VIa West of Scotland Jan-Mar
(excluding Clyde) Apr-Jun
Jul-Sep
Oct-Dec
25
1
2009
356
10
8
2982
187
VIa West of Scotland Jan-Mar
(Clyde)
Apr-Jun
Jul-Sep
Oct-Dec
10
6
2
2054
1267
285
279
7
2
879
179
Research Vessel Surveys
Area
Date
Objectives
Northern and Central Nor th Sea
January
Sprat Acoustic Survey!
Northern and Central North Sea
January
Sprat Trawling Survey!
In accordance with C. Res. 1981/2:22.
Squalus acanthias (Spurdog)
Sampling: Length measurements continued to be taken from commercial and research
vessel samples.
Tagging: No new tagging experiments were carried out but recoveries from previous
experiments continued to be monitored.
- 32 -
MACKEREL
Sampling
No of Samples
Area
Season
Type of
Fish
Research
Vessel
IV a
Northern Nor th Sea
Jul-Sep
Oct-Dec
1 mm/adult
adult
29
IVb
Central North Sea
Jul-Sep
1 mm/adult
20
VI a
West of Scotland
Jan-Mar
Apr-Jun
Jul-Sep
Oct-Dec
1 mm/adult
adult
adult
1 mm/adult
18
18
VIlb
West of Ireland
Apr-Jun
1 mm/adult
VIlc
Porcupine Bank
Apr-Jun
VIIj
Great Sole Bank
VIIh
Li tt!e Sole Bank
Market
No of Fish
Measured
Aged
695
188
204
9
726
178
3432
107
1513
7637
1184
7
436
172
1 mm/adult
1
6
6
Apr-Jun
1 mm/adult
15
811
586
Apr-Jun
1 mm/adult
1
54
24
2
9
1
16
72
632
1855
Research Vessel Surveys
Area
Date
Objective
West of UK
May
Mackerel egg survey
West of UK
June
Mackerel egg survey
West of Scotland
December
Recruits survey
Other Research Activities
Investigation of mackerel otolith morphometrics wi th a view to stock discrimination
(ICES CM 1986/H:7).
Mackerel fecundity investigations.
- 33 -
M. Poutassou
Sampling
Area
VI a
Season
Jan-Mar
Apr-Jun
No of Samples
Research
Market
Vessel
Type of Fish
Mixed
Mixed
No of Fish
Measured
Aged
1
57
2
192
57
151
U.S . A.
(R . C.
Hennemuth)
General
Seasonal fish trawl surveys, plankton net surveys, and hydrographic surveys
were continued. Annual assessments were completed for scup, Atlantic herring,
Atlantic mackerel, butterfish, bluefish, river herrings, striped bass, and squid.
Studies of the evaluation of precision of trawl surveys, and hydrographic
and ichthyoplankton production in zooplankton faunal zones were completed.
Atlantic mackerel
Completed fourth year of cooperative research with Polish vessels on
distribution, abundance, and biology.
Herring
Studied parasitic Anisakis simplex as a means of differentiating stocks.
Studies were also conducted on the process of recruitment and comparative
distribution of larvae in 1970's and 1980's on Georges Bank.
Large pelagics (sharks, billfish, and tuna)
Cooperative longline cruise on Polish research vessel to study ecology
was completed.
Butterfish
Special study of the spatial distribution by size groups was completed .
- 34 -
U. S.S . R.
(A. A. Eli zarov)
SAMPLING
--------------------------------Area !Quarter Month
Type of fish
No. of age! No. of fish
___ ; _________________ s_:m.~:i_:s_ .i_m~a~U£e.2: _ai!je,2: _
_ 1__
!_·: --- ~ ----- ~ ------ ~ -_l _~ - - -
_7_ -
Blue whiting
II a
I
II
Jan
Feb
Mar
In all
Apr
May
Jun
III
IV
Prespawning
Spawning
Postspawning
Postspawning
Feeding
Feeding
In all
Feeding
Jul
Feeding
Aug
Sep
Feeding
In all
Oct
Feeding
Nov
Feeding
Dec
Feeding
In all
'l 'otal
IIb
IV
Nov
Feeding
Feb
Mar
In all
Apr
In all
Oct
Nov
In all
Spawning
Postspawning
Total
IVa
I
II
IV
'l'otal
Postspawning
340
4
2
38
3705
5091
9136
21819
18990
21737
62546
13024
29139
11808
53971
4909
11049
2356
18314
143967
2
2
348
348
6
2
7
2
11
3
10
7
20
1
1
1
1
1
1
Feeding
Feeding
1944
400
200
600
200
700
200
1100
300
1000
600
1900
100
100
3700
50
50
339
100
2283
317
317
323
100
100
100
401
724
2
3324
200
- 35 -
---------------------------------1
=2
:3:
4
:
5:
6:
7
- - .l - - _,_ - - .!. Vb
I
Jan
1
Feb
Mar
In all
May
II
In all
Nov
IV
Dec
In all
Total
Vb
2
II
- - - - - - - - _:_ - - _:_ - - - .1 - - - - Prespawning
1019
Spawning
7707
Postspawning
1
100
327
100
1
9053
Feeding
100
1
1058
100
1058
1
Feeding
200
2
4572
Feeding
100
1
607
300
5179
3
500
15290
5
May
Feeding
Mar
In all
Apr
In all
Postspawning
3
Postspawning
3
1
1
347
347
Total
VI a
I
II
Total
VIb
4
II
Apr
Postspawning
I
Jan
l!'eb
Mar
In all
Apr
In all
Prespawning
Spawning
Postspawning
II
VIIk
3
3
I
II
Feb
Mar
In all
Apr
In all
Spawning
Postspawning
Postspawning
VIII
4
3
7
4
4
11
Total
1'otal
1
1
1
Postspawning
1'otal
I
Feb
Spawning
300
300
100
100
400
337
337
Total
VIIb,c
1431
1431
986
986
2417
5420
6099
3388
14907
657
657
15564
100
100
15917
34919
50236
1325
1325
51561
400
300
700
400
400
1100
13056
13056
100
300
300
- 3 6 -
1-:- 2 - : - -; - -:- - - - - 4 - - - -:- -5- -
: -6- - : - -7- - -
- _,_ - - .!. - .:::: - _:_ - - - - - - - - _:_ - - - .!. - - - .!. - - - - Polar cod
I
I
II
III
IV
Total
Ila III
IV
Jan
Mar
In all
lvlay
Jun
In all
Aug
Sep
In all
Oct
Nov
In all
Prespawning
Postspawning
III
IV
585
Feeding
Feeding
Feeding
Prespawning
Prespawning
Prespawning
7
8
15
4
4
19
Sep
In all
Oct
Nov
In all
Feeding
Aug
Sep
In all
Oct
Nov
In all
Feeding
Feeding
3
Prespawning
Prespawning
1
Prespawning
Prespawnine
1
1
1
Total
IIb
573
310
883
1
I}
1
5
Total
750
1335
2930
5675
8605
3224
4396
7620
18443
110
110
406
356
762
872
650
500
1150
400
400
1550
12
12
12
1649
4707
6356
2224
8775
10999
17355
300
100
400
100
14402
6324
17635
38361
4376
1128
436
5940
400
300
1700
2400
400
100
500
Capelin
I
I
II
Jan
Feb
Mar
In all
Apr
May
Jun
In all
Pre spawning
Prespawning
Spawning
Spawning
Feeding
Feeding
4
3
17
24
4
1
1
6
25
600
1025
- 37 -
-1-: -
2-:- -3- -:- -
5 -:-· -6- -:- -7- -
- - - -4- - - - : -
-------------------------------:
:
III
IV
:
:
Jul
Aug
Sep
In all
Oct
Nov
Dec
In all
Feeding
B'eeding
Feeding
Feeding
Feeding
Ii'eeding
'.i.'otal
II a
l!'eb
!.Jar
Prespawning
Spa1?ning
III
In all
Jul
Aug
Sep
Feeding
Feeding
Feeding
IV
In all
Oct
l<'eed ing
I
1
3
10
14
2
3
47
50592
1
1
5
,-
7
I
III
Jan
Feb
In all
Prespawning
Prespawning
Jul
Feeding
Feeding
Feeding
AU(i
Sep
IV
In all
Oct
Nov
Dec
In all
100
202
4600
100
100
200
264
264
464
355
571
894
3245
5194
100
349
300
9333
1675
1254
749
34
200
2929
12833
534
1283
1
4
8
7491
7491
2190?
2387
200
200
400
800
12
24368
1200
13
31859
1400
1
4
3
2
2
3
7
15
'rotal
47
229
276
251
59
52
362
1764
1/'64
2402
100
300
573
973
102
216
8
Feeding
Feeding
Feeding
902
768
3350
5020
420
851
1271
7
'l'otal
:
1
2
In all
IIb
:
;)00
Mackerel
Ila
II
III
Jun
In all
Jul
Aug
Sep
In all
'l'otal
Fostspawning
Feeding
Feeding
l?eeding
1
71,
- 38 -
-1-: -2- - :- -
3 - : - - - -4- -
- - -:- -5-
-=-
-6- - : - -
7- -
- - l. - - _,_ - - - l. - - - - - - - - _:_ - - _:_ - - - l - - - - Feeding
Jul
IIb
III
300
3
'.l'otal
300
3
I Va
Spawning
II
Mar
In all
Apr
May
Jun
In all
Spawning
Postspawning
Postspawning
269
269
335
621
1363
2319
2588
II
Jun
Postspawning
3251
I
'l'otal
Vb1
'l' otal
VI a
'l'otal
VIIk
3251
II
I
II
Apr
Postspawning
318
318
Spawning
Mar
Apr
Postspawning
Postspawning
May
In all
205
678
311
989
1194
'l'otal
VIII
II
May
Postspawning
911
911
'l'otal
Atlanto-Scandian herring
I
I
II
III
Jan
Feb
Mar
In all
Apr
May
Jun
In all
Jul
Aug
Sep
In all
Feeding
Feeding
Feeding
Feeding
Feeding
Feeding
Feeding
Feeding
Feeding
26
20062
20950
15243
56255
1
9655
8
10
8
5
6
1
16
15
32
3374
262
13291
31
2142
2173
800
1000
800
2600
100
500
600
2
63
508
573
- 39 -
==I =IV=I=~=
====
Oct I====~==== I= =
350 I= =
109
5=I=~=
11
1
2
5
Nov
Dec
Feeding
1'' eeding
Feeding
In a ll
II a
III
IV
6
Aug
Feeding
In a ll
Feeding
Oct
F eedin g
Nov
Feeding
Dec
In all
'11 otal
IIb
III
Sep
Oct
Feeding
Feeding
!Va
'.l' otal
II
May
Postspavming
Vb
'l.' otal
II
Jun
Feeding
2
13
2
15
17
350
72069
120
3893
25
25
154
684
834
1672
1697
25
25
159
100
2
I
Mar
Spawning
In all
Apr
Postspawning
May
Feeding
In all
259
284
2
1
1
2
680
680
36
36
2
2
II
'11 otal
2
2
'l'otal
VI a
1
70
'l.' otal
7
706
706
301
305
606
13'12
-- 40 -
RESEARCH VESSEL SURVEYS
Survey area
Barents Sea
Period
Investii;ations
Jan-Apr
Observations over dis tribution and migrations of
capelin and AtlantoScandian herring
Echo survey of blue
whiting stock in
spawning areas
West Ireland shelf,
areas off the Hebrides,
Faroe and Shetlancl
Islands
Norwegian Shallows
Feb-Apr
SW Barents Sea
Apr-Jun
Faroe Islands and
off-shore Norwegian
Sea areas
Barents Sea and
adjacent waters
Aug
Aug-Sep
Barents Sea
Sep-Oct
Feb-Apr
Studying the spawning
efficiency of AtlantoScandian herring
Survey of bottom and
pelagic fish larvae
International echo
survey of blue whiting
stocks in feeding areas
International 0-group
fish survey
International echo survey of the Barents Sea
capelin, polar cod and
young Atlanto-Scaxidian
herring