Int@rncticn:l Ccunzil f o r the
Yxglor?ticn of t h e Ser
R e c o r d i n ? of r.;.ersities ;n$
c.:", q ~ y , ' " , : 1
2cpor:, o f A c t i v i t i e s
zrci:rth r?.Lec. of t h e 1'92
c l - s s e s o f s o l e , p l z i - c c ? r"?,f i c a n d e r , coi!
:jeer
.:17fl
2nd 1993
-:-hitin,
crrried out,
71-c srui, 335 a e r c r l e o ilnder'c?l;cn
yi?,iLC
T h e il?rl:ct 3:am;:lin::
. . i i ~ i t i n g(::or!;b
Ze,:),
(?yo-th
f2r t h o Frter-fl?ti.o:icl d e m e r ? ~ :
f i s h survcg.
in?s x , n t i n ; ~ ? 5c o v e r i n ; ccd. (l:or.tl? B e - ) ,
b:.ddcc::
( F o r t h S e r ) , ? I - i c e "3: so1.e
S e s , 2 n ~ l . i s b C t a n n o l , C e l t i c Se- -cd I r i c b se.),
3pec1rs
ire
t
---
L
I V
&
a
1
ho o f b;\iilples
h o of s a m p l e s
l<esearch
- ----
aolo
V l l
beason
-
-
drket
1I
lL
'leasured
--
--
1 JlY
1*;1
I
.,/ .$
'I
'
.\sod
-- ------
LlIl
'10
2.10
bpecies
A 0 of
Area-
Research
bhiting
1
IV
2
Haddock
1\-
sam,>les
No o f s a m p l e s
Season
-
Xarket
Jieasured
Aged
11
55 5
140
1181
205
3
-
15
11
7Y9
150
4
-
12
1054
l5U
1-4
-
15
1702
150
DENMARK
COD.
Area
Season
I
Type of
fish
1
I~onsum:)l
Katte-
1
consum.
North:
Sea
1
2
consum.
Belt
Sea
(K. Popp Madsen)
No of samples
Market
-
3
4
Baltic
1
*)
No of fish
Research
vessel
-
consum.
for human consumption
1
Measured
1
Aged
118
1 1 7 8 1
20
495
495
24
24
20
29
628
552
438
604
628
552
438
604
9
820
296
820
296
9
Examined
racially
I
-
I
COD
No of f j sh
No of samples
Area
Season
Type of
fish
Research
vessel
1
2
3
I Industr. 1
-
I
1
4
1
2
3
industr
.
4
North
Sea
1
2
3
4
industr.
Measured
Market
I
I
4
3
6
13
Aged
I
Examined
racially
I
7
7
4
4
13
26
13
26
-
r
Area
Season
No of samples
Research
Market
vessel
Type of
flsh
-7;
No of fish
Measured Aged
Industr.
-
4
4 B
4 C
North
Sea
Examined
racially
21
0
13
28
76
1
54
124
71
5
53
123
--
1
2
3
4
industr
.
-
8
6
12
16
371
8
109
157
282
8
109
149
-
1
2
3
4
industr.
-
-
-
-
1
2
3
4
industr.
-
-
-
1
2
2
-
28
7
25
45
447
9
163
283
357
9
162
274
-
-
-
-
-
Area
Season
Skaqerrak
'
Kattegat
Baltic
No of samples
Research
Market
vessel
Type of
fish
1
2
3
4
.
Industr
-
industr.
1
2
3
4
1
2
I
4
1
ind~str.
8,
No of fish
Measured Aged
Examined
racially
-
11
23
30
19
169
214
2208
1114
169
214
2208
1114
-
-
10
22
73
456
874
1136
73
456
874
1136
-
1
-1
-
-
5
16
1
-
-
-
-
I
- 7HADDOCK.
t
No of samples
Area
4 A
Season
1
Type of
f~ s h
Industr
Research
vessel
.
2
3
4
4 B
1
2
3
industr .
4
4
C
North
Sea
1
2
3
4
1
2
3
4
industr .
industr .
-
Market
47
7
27
60
-
No of fish
Measured
231
18
268
505
2
4
3
-
-
-
47
9
31
63
Aged
Examined
racially
219
18
267
503
-
-
-
2
5
6
2
5
6
-
-
-
-
-
-
219
20
272
509
-
-
-
231
20
273
511
- 8HADDOCK.
No of samples
Area
Season
1
North
Sea
Type of
fish
Research
vessel
*'
consum. ,
2
3
4
Skaqerrak
1
2
3
4
*)
for human consumption
-
-
-
Market
No of fish
Measured Aged
3
3
699
585
278
265
699
585
278
265
-
-
-
-
3
3
250
297
250
297
6
6
-
Examined
raclally
-
-
-
I
- 9 NORWAY POUT
No o f s a m p l e s
Area
Season
Type of
fish
4 A
1
Industr
2
3
4
4 B
Industr
1
Research
vessel
.
.
2
3
4
North
Sea
1 11
Industr.
1
2
3
4
I
Area
Season
Type o f
fish
Skagerrak
1
Industr.
Katte-
2
3
' 4
-
-
Measured
Aged
Examined
racially
62
11
31
60
6587
829
3371
6666
6466
829
3371
6666
-
-
2
62
13
31
60
N o of samples
Research
Market
vessel
-
-
No of f i s h
Market
5
23
28
20
-
-
212
212
-
6587
1041
3371
6666
-
-
6466
1041
3371
6666
No of f i s h
Measured Aged
188
1382
1483
927
1
92
-
-
Examined
racially
-
10
-
SANDEEL
i-
Area
4 A
Season
T y p e of
fish
1
2
Industr
No of samples
Market
Research
vessel
.
3
4
4 B
4 C
1
2
3
4
industr
1
industr
.
Y
.
2
3
4
North
Sea
1
2
3
4
industr.
-
-
No of fish
Aged
Measured
-
-
-
-
-
-
-
89
13
-
-
9259
1362
-
8630
1362
195
435
-
9454
1988
-
-
-
-
195
626
91
19
-
-
-
2
6
-
-
-
-
Examined
racially
-
8825
1797
-
-
SAITHE
No of s a m p l e s
Area
Skagerrak
Kattegat
Season
Type of
f is11
1
industr
2
3
4
Research
vessel
.
industr.
1
2
3
4
1
Market
-
-
-
6
4
-
6
27
-
-
-
-
6
1
11
1
-
No of s a m p l e s
Area
Season
Type of
fish
1
consun.* )
-North
Sea
Skagerrak
2
3
4
1
2
3
4
*)
Research
vessel
-
consum.
No of f i s h
Measured
-
-
f o r human consumption
Market
-
-
-
-
1
-
4
379
Aged
307
423
-
97
-
_
-
-
97
-
-
-
4
403
403
-
Examined
racially
379
-
-
-
No of f i s h
307
423
1
Examined
racially
-
-
Measured
3
4
-
Aged
-
I
-
12
-
PLAICE.
No of s a m p l e s
Area
Season
Type of
fish
Skager-
1
2
consum* )
rak
Research
vessel
3
4
Kattegat
1
consum.
2
North
Sea
1
2
3
4
Measured
-
9
10
9
9
1087
1016
980
976
1087
1016
980
976
-
13
12
11
14
1198
1323
1173
1494
1198
1323
1173
1494
-
-
15
14
12
16
1483
1218
956
1395
1483
1218
956
1395
-
-
3
4
consum.
No of f i s h
Market
COMMON SOLE.
* ) f o r human c o n s u m p t i o n .
Aged
Examined
racially
-
Area
Season
consum*
1
Kattegat
2
3
'
Type of
fish
'
No of samples
Research
Market
vessel
-
-
4
*)
for human consumption
No of fish
Measured Aged
1
102
102
1
152
152
1
1
206
173
206
173
Examined
racially
-
-
FRANCE
(B.
!.leenil)
I. S t a t i s t i q u e s de c a p t u r e et d'effort.
L'implantation du systgme national d e recueil e t t r a i t e m e n t des s t a t i s t i q u e s
d e p&he s ' e s t poursuivie e n 1983 a v e c l a prise e n c h a r g e des ports d e Bretagne
Sud (Lorient, Concarneau, Douarnenez e t les 4 p o r t s bigoudens) e t d e Manche
E s t [Cherbourg e t Port-en-Bessin). C e systkme fournit d e s Ctats d e c a p t u r e e t
d ' e f f o r t par e s p i c e e t catCgorie, s e c t e u r e t m i t i e r (classe d e navire e t t y p e
d'engin) pour les dCbarquements e f f e c t u i s e n criCe.
L e port d e Boulogne-sur-Mer conserve un s y s t 6 m e indipendant mais qui
fournit des rCsultats analogues. I1 a i t 6 I i g k r e m e n t amendd e n 1983 par l a prise
e n c o m p t e d'une subdivision d e la flottille e n classes d e navires selon la puissance
m o t r i c e : ii Ctait en e f f e t apparu que celle-ci d i t e r m i n e tr&s Ctroitement l e
t y p e d ' a c r i v i t i e r sa aistriburion giographique. Oil peut ainsi a f i i n e i e n particulier
l a m e s u r e d e I'effort d e p@che (ddsormais exprim6 e n heure d e pCche e n plus
d e I ' u n i t i standard pondirCe par l e s puissances) par s e c t e u r e t par mdtier.
11. C a m p a g n e s scientifiques
i l a mer.
L a F r a n c e a maintenu s a
c o o r d o n n i e s par l e CIEM, h savoir
a u 11 m a r s 1983 ; 41 s t a t i o n s e n i V
Young Fish Survey (6-22 s e p t e m b r e
Nord, e n zone c8tigre).
participation aux campagnes internationales
I1International Young Fish Survey ( 5 fkvrier
8 , 2 e n IV A e t i l e n VI A) e t l a O e m e r s a l
1983 ; 25 s t a t i o n s e n IV C Sud, 28 e n VII D
Pour rCpondre h un voeu exprim4 par l e Conseil, une campagne d e m a r q u a g e
d e lieu noir a d u l t e a & t i effectuCe sur l e s a c c o r e s Nord-Ouest des Iles Dritanniques
du 10 m a i a u 9 juin 1983 ; 942 individus o n t i t 6 m a r q u i s dans l e s e c t e u r IV A
(5i stations), 327 e n VI A (27 stations).
S e son? i g a l e m e n t poursuivis l e s programmes propres a u Golfe d e Gascogne :
c a m p a g n e s t r i m e s t r i e l l e s SOLMER d'Cchantillonnage du rnerlu e t d e la sole (18
s t a t i o n s e n fkvrier, 21 e n mai, 26 e n juillet, 26 e n octobre) e t campagne annuelle
CRUGAS d'ivaluarion du r e c r u t e m e n t d e merlu (28 s t a t i o n s e n ncvembre-dicembre
1983), compl&t&es par des observations d i r e c t e s Ibord d e navires professionnels.
Enfin, une campagne d e mesure d e l a sdlectivitd a i t 6 m e n i e e n Manche
O c c i d e n t a l e (VII E) du 16 au 25 m a r s 1983 (8 stations).
Ill.
Echantillonnage.
Les o p i r a t i o n s d'ichantillonnage h l a mer e t h t e r r e sont rCsumCes d a n s l e s
tableaux joints. Ceux-ci appellent l e s remarques suivantes :
.
.
.
Selon les ports, l e nombre d'dchantillons mention& peut recouvrir d e s
entitCs t r 6 s hitCrogknes (nombre d e navires, d e lots ou d e caisses, d e
sdances d'ichantillonnage), c e qui empCche parfois d e p r i c i s e r la taille
des Cchantillons.
L e s clCs taille-bge des g a d i d i s d e Mer du Nord s o n t Ctablies pour I'ensemble
du stock e t l'on n e peut donc e n gdnCral indiquer l a taille des Cchantillons
d'ageage prilevCs dans chaque s e c t e u r (IV A h IV C).
L e nombre d'individus e f f e c t i v e m e n t m e s u r i s a u c o u r s d e l a c a m p a g n e
IYFS ( k h a n t i l l o n s scientifiques e n IV B e t VI A a u l e r t r i m e s t r e ) n'ayant
pu & r e retrouv6, on a indiqui e n t r e parenth&ses l e nombre t o t a l d e poissons
c a p t u r i s dans chaque secteur.
NOMBRE DE POISSONS
ESPECE
SECTEUR
CIEM
SAISON
MORUE
(suite)
259
27 1
20 1
215
181
V I I F-G
EGLEFIN
AGBS
I1
IV
A
A
ler T
2e
3e
AUTRES
HESURES
+ sexe e t maturite
293
234
274
158
T
T
ler T
+ s e x e e t m a t u r i tQ
918
915
973
294
350
IV
V
C
B
VI A
2e
3e
4e
T
ler
2e
3e
4e
T
2e
T
T
Cf.I V A
T
T
Cf.I V A
T
T
ler T
309
420
262
276
289
+
do
I
ESPECE
MERLAN
HOMBRE D'ECEANTILLOIS
NOMERE DE POISSONS
AUTRES
HESURES
NOMBRE D'ECHANTILLONS
ESPECE
SECTEUR
CIEM
SAISON
IV
B
ler T
IV
C
2e
3e
T
3e
T
VII D
T
NOMBRE DE POISSONS
G e m a n Democratic Republic
(B. Vaske)
The following sampling of length and age distributions
has been carried out i n 1983
Redfish
(S.mentella)
IIa
I1
18
I11
24
IIb
IIb
I1
I11
25
IIb
I11
2354
1153
6209
1360
Greenland
halibut
11
1
2601
712
2601
1270
198
100
Research vessel survey
Are a
Date
Spitsbergen
(Svalbard)
22,7,-28.7.1983
Objective
-
Redfish
Greenland
halibut survey
FEDERAL REPUBLIC OF GERMANY
(G. Rauck)
The biological sampling programme of demersal species on board research vessels,
commercial trawlers and on fish markets has been continued.
This sampling scheme, including length frequency measurements, otolith samplings,
single weights of fish, tagging of fish, stomach sampling, as well as studies
on fish density and distribution of demersal fish species were carried out during
ground fish surveys.
The monthly bycatch analysis of the shrimp fishery as well as joint investigations
in the Wadden Sea area of Niedersachsen and Schleswig-Holstein have been continued
in spring and autumn together with vessels from the Netherlands and Belgium.
Investigations on cod discards in the commercial fisheries and cod selectivity
studies using mesh sizes of 90 and 100 mm mesh openings were carried out in the
German Bight.
A ground fish survey covering most parts of the North Sea and investigations on
haddock at Rockall Bank have been carried out and will be continued for the coming
years.
Research vessel cruises related to the national sampling scheme of the demersal
species were as follows:
R.V. "Walther Herwig"
Months
ICES area
Objectives
Jan./Febr.
Febr./March
VIab, Rockall
IIa, IVa, Va, VIab,
VIIg-k
VIab, VIIg-k
IVa, Vb, VIab, VIIa,
VIIbc, VIId-k, XIV
XIV
Groundfish
Groundfish
survey
Groundfi sh
Groundfish
survey
Groundfish
dan.
IVb
Febr./March
March/Apr.
IVabc
VIa, VIIbc, VIIg-k
VIIde
Groundfish survey, fish
diseases
IHFS
Groundfish and pelagic fish
survey
June/July
Aug. /Sept.
IVbc
VIa, VIIbc, VIIg-k,
VIIde
Apr ./May
JulylAug.
Sept./Oct.
survey
and pelagic fish
survey
and pelagic fish
survey
R.V. "Anton Dohrn"
Groundfish survey
Groundfish/pelagic fish survey
R.V. "Solea"
Months
ICES area
Objectives
January
February
June
IVbc
IVb
IVb
Groundfish survey
Groundfish survey
Sole beam trawl survey,
set net, turbot
Jul ylAugust
Aug./Sept .
IVb
IVe
September
Nov. /Dec.
IVab
IVb
i
Groundfish survey/
fish diseases
Groundfish survey
Groundfish survey
-
25
-
N m - 3
m ?m o m o w m
3 co
m e h o ~ m w m
mN
3
W d
33
d L n
~
W
L
D
L
m o m
u m w
~
O
N
? - ? - h o m w m
W
N
L
D
~
N
o m - 3
m P.
W
>
n
E L
i
~
O
3
N
N
u r n -
~
mhWN
4
0
Ln
m
?d
3
W
w
~
N
N
w w
N m3
3
rn n
m - + .
> > >
m
m o h m
O d d *
NN4N
mmw
Cumm
b m m
-
'C
w
0
27
-
m h m w
OU3CUO
m u a a
4
5,
U
C
5 5-c
'J)
(L
*
i
WLnhm
o h m m
N N a m
m m a d
OONN
d m *
dIDdN
Addo
d
I
k 6'4
C > C l
c
I
...
m
d
0
m
B
--
s
.
m
a
0
4
E
k
I
0
.c
0
L
C
w
3 1 .
"
m
e
m
'T! *
- l r
0
2
.
~ m r l
ONW
N I D ~
a
O N ~ O
a
d m m o r.
w w a m m
Nw m m
a o m m a
OWOd N
OINON m
o ~ m r . ~
a m m
N-m
0-r-
d
4 4
.
rn
6'
- 2n,
.
a O d m m
m m h h 4
C
0
hd0
mr.4
ddd
m
ddd
WIDNN
N L D P - 4
d N d 4
N
4
h
W
cor.
4
-n
- ----
6"
0
- ---- ---t-4
-->
k
0
rn
-->
-->
5,
.d
0
o c
u
*
5' 5'
(2
,n e
a
..
- 'I
v)
n
n
----->
.
ICELAND
(No r e p o r t r e c e i v e d )
?ovl ?.:mal<.n: o f t h e commercisl c a t c h e s o f c o d , w b i t i n ~
n n ~ lpl.nice t.ii 3 i v i s i o n s VIa e n 8 VIIz and o f h,cddoc'; i i z
3 i i 7 i s i o n V?? c o n t i n u e d .
; 'oezm .I;ra:;l s u r v e g f o r j u v e n i l e n l z i c e i n s h u l l o ~ .w~ t e r
o-f?" t b o e
~ c o~e n t t of 1rel::ad i n I.$.!.
and S e p t e n S e r :.is
c l n o 'continued.
Species Divigion
Fort
Greencastle
Se-son Bo. o f
samples
6
W5
371
13
364
261
~ 0 ~ 1 337
1
1483
1025
ZC?
2
4
r,
VIIe
Roath
No. 3f f i s h
mecsured 1" ye+
A
1
7
252
2
4
164
40
626
3
4
1
-
9
49
20
337
S ~ e c i e sD i v i s i o n
Port
Greencastle
Seeson
2
5
406
4
354
I 20
148
30
2233
927
3
3
219
107
176
722
2
4
Total.
3unmore F e a t
No. o f f i s h
n e e s ~ i r e d 3.g-ed.
4
Tot21
Greencastle
KO. of
snmnJ.es
1
21
1
374
706
-,
53
Species
Division
Port
Seeson
$10. of
KO. o f P i s b
meesured I
op;ec!
sgmplee
ITurjbero ir: ' . r r c ' - e t ~ d e n o t e n t o l . i i h s c o i l e c t e 2
',lit
not; g e t
r.~ecl.
Beam trewl survey f o r p l a i c e in i ? 8 ?
L:on th
No. of beuls
Ace g r o u p s
?B 1-e
Pensle
Total
I---.
Sentnmber
39
1
To:;l
37
0
51
43
:R?
9.I
z71
~3
1
2r.4
524
~CC;
334
493
85C
IET2E!RLA"JTDl
(B.A.
van Beek)
I n 1983 t h e market sampling of t h e Dutch landings was continued f o r
t h e s p e c i e s b r i l l , cod, haddock, p l a i c e , s o l e , t u r b o t and whiting.
The market sampling i s s t r a t i f i e d on a r e a b a s i s ( s e e f i g u r e 1 and 2
i n l a s t years Administrative Report). The number of f i s h measured and
aged i n each a r e a i s given i n t a b l e s I t o VII.
I n A p r i l and September/October two DemersaL Young Fish Surveys,
d i r e c t e d on 0-, I- and 11-Group p l a i c e and s o l e and brown shrimps
were c a r r i e d out i n t h e c o n t i n e n t a l n u r s e r i e s from t h e English Channel
t o Jammer Bay.
These surveys a r e c a r r i e d out s i n c e 1969 i n c o l l a b o r a t i o n with Belgium
and t h e Federal Republic o f Germany. For The Netherlands R.V. "Tridens",
R.V. "Stern", R . V . "Schollevaar" and t h e c h a r t e r GO 29 p a r t i c i p a t e d
i n both surveys.
-
May 6 l a r v a l surveys were c a r r i e d out i n t h e
I n t h e period February
e s t u a r i e s E a s t e r s c h e l d t and Waddensea with R.V. "Schollevaar" and
R.V. "Stern".
I n t h e s e surveys t h e migration and s e t t l i n g of p l a i c e l a r v a e i n t h e s e
areas i s investigated.
I n August/September a beam t r a w l survey was c a r r i e d o u t i n t h e c e n t r a l
North Sea with t h e c h a r t e r e d v e s s e l KW 34 ( 4 weeks). The main o b j e c t i v e
of t h i s survey was t o i n v e s t i g a t e t h e d i s t r i b u t i o n and abundance of
adult plaice.
The gear i n use was a i 4 meter beam t r a w l with 6 t i c k l e r chains.
The survey covered t h e a r e a between 5 4 ° 0 0 ' ~ 5 8 ' 3 0 ' ~ and 2 ' 0 0 ' ~ 8'00'~.
-
I n February R.V. "Tridens" p a r t i c i p a t e d i n t h e I n t e r n a t i o n a l Young
Fish Surveys ( I Y F S ) . These surveys a r e c a r r i e d out y e a r l y s i n c e 1960.
I n June R .V. "Tridens" p a r t i c i p a t e d i n t h e I n t e r n a t i o n a l 0-Group Gac?oid
Survey. This survey was h e l d f o r t h e 10th consecutive y e a r and w i l l
not be continued i n f u t u r e .
I n October/November R.V. "Tridens" c a r r i e d out a survey i n t h e southern
North Sea with t h e GOV t r a w l d i r e c t e d on roundfish. This survey i s
h e l d s i n c e 1980.
The s u r v i v a l of 0-Group p l a i c e , caught by t h e Dutch shrimp f l e e t , was
i n v e s t i g a t e d i n s u r v i v a l tanks on board and by means o f tagging
experiments. I n June ( 2 weeks) and November/December ( 2 weeks) shrimps
and bycatch were processed with 2 types o f s i e v e s ( r o t a t i n g s i e v e and
shaking s i e v e ) on board of R.V. "Stern" i n t h e Waddensea. I n each
p e r i o d 1500 tagged young p l a i c e were r e l e a s e d processed with one of
t h e 2 s i e v e s o r d i r e c t from t h e c a t c h . From t h e recaptures d i f f e r e n c e
of m o r t a l i t y caused by t h e processing method can be estimated.
I n orde t o estimate t h e l e v e l of discarding of commercial s p e c i e s i n
t h e Dutch f i s h e r y nine t r i p s were made on board of commercial v e s s e l s .
Most o f t h e s e t r i p s were d i r e c t e d on roundfish discards ( 6 p a i r t r a w l ,
2 o t t e r t r a w l and 1 beam t r a w l ) .
The numer of o t o l i t h s c o l l e c t e d i n t h e s e surveys i s a l s o given i n
table I t o VII.
TABLE
-
I
SAMPLING DATA F O R
i.
35
-
. 19.!3
NBRS.
ABEA
PERIOD
M A R K E T
measured
1st quarter
1
2nd
3rd
4th
,,
,,
,,
aged
aged
120
---
219
175
16
57
100
18
71
67
---
233
208
118
---
,,
239
125
27
3rd
,,
,,
156
70
27
173
I 82
---
31 8
120
---
276
3rd
,,
,,
141
297
54
-----
4th
,,
373
40
---
4th
1st quarter
3
RES . V e s s e l
2nd
l e t quarter
2
o f f i s h sampled
2nd
Waddensea
l e t quarter
Estuary
2nd
3rd
4th
---
,,
5
,,
25
---
*
zeeland
1 s t quarter
Estuary
2nd
,,
3rd
,,
4th
,,
--1
-----
1 s t quarter
2nd
9,
3rd
,,
4th
,,
1st quarter
2nd
3rd
4th
,,
,,
,,
Total
Annually
1
2620
1312
119
-
TABLE I1
SAWLING
DATA
FOR
;.ED..
36
-
.. 19%
N B R S o f f i s h sempled
AREA
PERIOD
M A R K E T
measured
1
1st quarter
Northern
2nd
North Sea
3rd
,,
,,
4th
,,
2
1 s t quarter
Central
2nd
North Sea
3rd
,,
,,
4th
,,
3
1st quarter
Northwestern
2nd
North Sea
3rd
4th
"
,,
,,
4
l e t quarter
Western
2nd
North Sea
3rd
4th
,,
,,
,,
Southwestern
North Sea
6
Southern
North Sea
7
Eastern
North Sea
aged
---
---
-------
232
---
---
-----
---
---
---
30
259
185
50
109
60
-----
50
---
-----
-----
-----
-----
288
1254
100
164
140
100
176
3 08
100
2nd
9 ,
3rd
,,
550
468
682
4th
,,
171
50
160
100
2397
1714
250
150
1453
1736
199
219
-----
---
1st quarter
5
1 s t quarter
3rd
,,
,,
4th
,,
2nd
1st quarter
2nd
3rd
4th
,,
,,
,,
RES.Veese1
eged
54
111
---
50
-------
-----
----3
----35
255
----272
---
-----
---
---
---
57
1951
934
Total
Annually
-
11856
- 37
111
-TABLE
SAUPLING DATA FOR
;MWF&.
1st quarter
3
Northwestern
North Sea
2nd
3rd
4th
4
Western
North Sea
Southwestern
North Sea
,,
,,
l e t quarter
2nd
,,
3rd
I I
4th
5
,,
9 ,
1 s t quarter
3rd
,,
,,
4th
,,
2nd
-
193.3
---
---
-----
---
---
---
---
---
-----
83
433
--75
-----
90
140
---
---
---
---
67
---
---
---
---------
138
134
45
---
--50
149
185
--16
6
1 s t quarter
Southern
2nd
,,
North Sea
3rd
,,
172
158
687
4th
,,
75
---
-------
---
---
---
-----
7
Eastern
North Sea
1st quarter
2nd
3rd
4th
,,
,,
,,
107
-----
2625
579
58
---
11
Total
Annually
T
475
- 38 -
TABLE IV
SAMPLING DATA FOR PLAICE 1983.
NBRS. of f i s h sampled
AREA
MARKET
PERIOD
measured
RES. V e s s e l
aged
aged
IV B
3rd q u a r t e r
---
1st quarter
160
---
VB
2nd
"
240
30 1
3rd
"
160
295
4th
"
240
314
1s t q u a r t e r
399
---
2nd
"
160
773
3rd
"
240
96
4th
"
160
681
DB ( 0 )
1st quarter
DB (w)
2nd
"
3rd
"
4th
"
1st quarter
F1
2nd
"
3rd
"
1st quarter
O.G.
2nd
"
3rd
"
1 s t quarter
D.W.K.
1st quarter
Waddensea
Estuary
I 2nd
"
3rd
"
14th
"
I
Zeeland
2nd q u a r t e r
Estuary
4th
Total
Annually
1
"
I
I
1
1010
TABLE V
SAMPLING DATA FOR
:.'?.F.. .. ~
39 -
9 . 8 ~
NBRS. of f i s h sampled
ABEA
PERIOD
MARKET
measured
1st q u a r t e r
1
2nd
3rd
4th
,
,,
,,
9
1st q u a r t e r
2
3rd
,,
,,
4th
,,
2nd
1st q u a r t e r
3
---
55
55
55
---
275
234
110
---
110
250
275
--247
165
---
4th
,,
165
249
110
---
,,
,,
,,
220
109
110
---
110
62
110
---
55
114
3rd
,,
,,
165
---
4th
,,
110
83
2nd
1st q u a r t e r
2nd
3rd
4th
110
,,
,,
,,
165
110
110
1st q u a r t e r
2nd
3rd
4th
1
8
110
9 ,
1st q u a r t e r
I
---
165
3rd
4th
7
110
660
3rd
6
aged
,,
2nd
5
aged
2nd
l e t quarter
4
RES.Vease1
110
,,
110
,,
,,
110
110
I
1
I
I
TABLE V (CONTINUED)
SAMPLING DATA FOR
j..
.Sfi@.
40
-
. 19.83
N B R S o f f i e h sampled
AREA
PERIOD
M A R K E T
measured
l e t quarter
Irish
2nd
Sea
3rd
4th
,,
,,
,,
l e t quarter
~ o l fof
Blscay
2nd
7rd
4th
aged
RES.Veese1
aged
55
165
---
--55
,,
---
,,
,,
---
110
---
1st quarter
Waddensea
2nd
Estuary
3rd
,,
,,
---
4th
,,
160
203
-.
---
l e t quarter
Zeeland
2nd
Estuary
3rd
,,
,,
4th
9 ,
128
--76
1 s t quarter
3rd
,,
,,
4th
,,
2nd
l e t quarter
3rd
,,
,,
4th
9.
2nd
1 s t quarter
2nd
,,
3rd
,,
4th
1,
Total
Annually
4565
1948
-TABLE
-
VI
SAMPLING DATA FOR ;.%R?.?T..
1983
41
-
-TABLE
-
VII
SAMPLING DATA FOR
<h?I.I?$?G..
42
-
19%
NBRS.
AREA
PERIOD
MARKET
measured
1st quarter
1
2nd
Northern
3rd
North Sea
4th
2
2nd
,,
,,
,,
1 s t quarter
Central
3rd
,,
,,
North Sea
4th
$ 9
1st quarter
o f f i s h sampled
aged
aged
-----
---------
-----
---
---
380
101
-----
-----
---
---
---------
-------
---
Northwestern
3rd
,,
4th
,,
---
.
152
---
364
101
2nd
Western
3rd
4th
North Sea
,
,,
1 s t quarter
5
63
,.
1 s t quarter
---
116
2nd
4
124
-----
3
North Sea
RES . V e s s e l
---
74
---------
108
-----
538
---
20
552
50
---
131
5
2nd
Southwestern
jrd
,,
,,
754
100
---
4th
1,
172
---
51
North Sea
1st quarter
Southern
3rd
,,
,,
North Sea
4th
9
6
2nd
s
1st quarter
7
2nd
Eastern
3rd
,,
,,
North Sea
4th
,,
1441
100
126
1233
251
---
1839
200
---
1935
100
363
---
---
---
---------
9778
1003
81 3
---
---
----50
Total
Annually
"
-
NORWAY
( O.M. Smedstad)
Subareas I and 11.
The research activities at sea increased in 1983 compared t o previous y e a r s .
The distribution of young cod and haddock were investigated during a
combined acoustic and stratified bottom trawl s u r v e y in the Barents Sea in
F e b r u a r y - March.
Two commercial trawlers were hired to participate in t h e
stratified bottom trawl survey together with one research vessel.
In May t h e
distribution of young cod were investigated in t h e Bear Island a r e a , i n J u n e
young cod and haddock were investigated in t h e eastern and sentral Barents
Sea, in September - October t h e distribution and abundance of cod, haddock,
redfish, Greenland halibut and blue whiting were investigated in the Bear
Island - West Spitsbergen area, a n d i n October young cod and haddock were
investigated in t h e eastern and s e n t r a l Barents Sea.
The investigations on the distribution and t h e drift of cod egg were continued
in March - April, and investigations on larvae were carried out in May - July.
In August - September t h e annual international 0-group fish s u r v e y were
carried out in t h e Barents Sea and adjacent a r e a s .
The distribution of spawning
cod in Lofoten and off Mmre were investigated during the cruises.
The distri-
bution of silver smelt along the Norwegian coast were investigated d u r i n g one
s u r v e y in April.
Tagging experiments of the major roundfish species continued.
Subarea 1V
The sampling of Recommendation 2 F ~ s h e r i e sin Division I V was continued.
The distribution and abundance of I-and 11-group gadolds were studied in
F e b r u a r y a s p a r t of the international s u r v e y s .
SAMPLING DATA FOR
N~RLAX_
P O U T 1983
SANDEEL 1983
SAMPLING DATA FOR
1
i
I
j
;
N o . of samples
Research
1
Market
)
samples
i
I
II
!
I
;
2
i
1
3
4
'
;
i
I
2
3
1
j
!
i
I
I I B j
1
j
2
\
IV B
I
I
1
i
I
,
!
i
I
I,
I
!
I
I
\
2
12
:
,
1
I
I
i
I
I
j
!
I
3
Racial
I invest. j
i
!
4
1
I
i
1
! IVAj
I
1
1
3
4
Aged
i
'
!
I
Measured
,
I
I
i
1
I I A l
!
1
!
;
;
I
N o . o f fish
6
:
100
199
'
!
1073
356
1
!
1
-
'
1
j
j
I
I
70
!
COD 1983
SAMPLING DATA FOR
'
I
Area
I
I
j
t
1
Research
Season
I
Measured
samples
b
j
3
!
1
,
3
6
-
49
104
13
126
2
1
3
1
I
1
1
2
3
4
,
I
i
i
22
1
I
3
8
I
1106
22
1
3
;
1
-
88
125
I
I
2
3
4
18793
1
3865
I 1371
4637
1
2346
I
1402
7166
'/
4032
16012
I 3361
14
j
4
-
I
2
/
159
Raclal
I
Invest.
2130
I
I1
1
/
2984
1218
I
I 7 6 2
1 3 8 1 :
I
-
1
1
1351
I
I
1 2658
852
1
I
t
854
I
26
1
'
I
i
50
I
I
1
IV A
i
I
236
I
4
4
1 Aged
I
2
1
I
i
I
I
IIB
Market
1 vessel
I
,
11.4
No. of fish
NO. of samples
1
16
'
105
299
29
i
389
189
26
1
54
8
10
I
I
SAMPLING DATA FOR
1
HADDOCK 1983
1I
Area
I
No. of s a m p l e s
I
I
l Research
,
Season
/
1
'
vessel
/
241
IIB
163
'
3
I
1
,
2
1
3
;
4
I
1
1
2
3
4
IV A
1
\
I
124
3
2
1I
Raclal 1
I
I
9
1
3555
1
341
38
I
1830
/
1779
7
'
5023
22
;
7
1
8818
667
_
I
501
I
116
492
1
637
52
I
482
38
i
381
17
'
3127
748
-
13
6
-
1
1;:
/
'\
I
I
1
16
,
32
1
842
3
33
I
329
4
24
2
'
/
Ii A g e d
5
84
I
Measured
I
1
_
1
4
1
samples
No. of f l s h
I
I
2
IIA
Market
I
I
I
326
I
SAMPLING DATA FOR
I
i
1
S A I T H E 1983
N o . o f samples
14
i
1
4
I I A ,
i
1
'
I
I1 B
1
(
45
I
-
3
1
4
1
-
I
;
80
36
1968
31
39
1
1624
2437
23
1
1473
1
1
33
77
i 246
1
1341
1823
'
2331
: 1401
-
1
I
2
,
14
3
4
IV A
717
489
,
1
2
1
6
3
8
I1
N o . o f flsh
'
134
35
33
1229
1963
3
28
45
4
30
929
1
2
5
156
400
'
1
1
/
1
1
S A M P L I N G D A T A FOR
GREENLAND H A L I B U T 1983
-
L I N G 1983
S A M P L I N G D A T A FOR
1
No. of samples
Area
I
Research
Season
I
1
1
hlarket
( vessel
1
I
1
1
I
!
I
I
I
I
1
2
I
I
1
4
'
I
I
I
i
I
I
I
i
I
i
I
I
I
I
1
I
I
1
Raclal
!
mvest .I
II
I
I
I
!I
I
,
,
2
I
3
4
'
I
1
2
3
4
IV B
Aged
1
i
I
1
IV A
of fish
I
I
3
4
I I A '
I I B I
Measured
samples
I
1
No
I
I
1
2
3
1
50
I
S A M P L I N G D A T A FOR
T U S K 1983
REDFISH 1983
SAMPLING D A T A FOR
i
of samples
NO
N O . of f ~ s h
I
I
Research
Measured
Area
I
I
I
I
100
I
2
3
1
I
I I A I
2
4
1
i
I
-
i
'
-
35
1
8086
1987
Aged
Raclal
1
i 1I
1
I
I
,
'
'
74
1
61
,
1 0 ,
1
-
I
7324
j
5370
668
i
1I
I
I
I
I
mvest.
LONG ROUGH DAB 1983
SAMPLING DATA FOR
I
NO.
Research
Area
i
Season
/ vessel
I
I,
I
IIA
I
I
/
1
1I
2
'i
3
I
125
100
,
4
1
2
1
'
3
'
l
4
,
I I B l
1
i
4
-
-
'
I
of fish
Aged
'
i
I
invest
I
I
'
9642
1
j
6219
7676
5419
-
1
-
1
91
'
-
1
/
I
'I
I
I
I
I
I
'
I
i
I
15
452
1
I
-
i
-
I
I
I
-
I
-
59
'
-
1
Raclal
1
71
74
3
1
\
Measured
1
I
1
2
1V A
Market
I
I
'
/
samples
I
No
of samples
'
I
I
174
4169
4085
1
2
3
4
IV B
1
2
3
4
I
SAMPLING D A T A F O R
WHITING 1983
POLAND
(B. Draganik)
No r e s e a r c h d a t a on demersal f i s h i n t h e n o r t h e a s t e r n A t l a n t i c were
c o l l e c t e d by Poland i n 1983.
PORTUGAL
;
1. Research
A.M.
vessel
CARAMEL0
and
F . CARDADOR;
activities
The Portuguese R/V "NORUEGA" c a r r i e d o u t d u r i n g 1983 t h r e e g r o u n d f i s h
s u r v e y s on t h e Portuguese c o n t i n e n t a l c o a s t (Oiv. IXal:
Date
Area
Portuguese
c o a s t , from
20-500 m e t e r s
depth
9 t h March-2nd A p r i l
Main
Objective
Sampling
Scheme
Estimate i n d i c e s
of abundance of
Stratified
1 6 t h June -7th J u l y
groundfish
random
Nursery
Estimate i n d i c e s
grounds, from
o f abundance
27th Oct-22nd Nov
of young
20-500 m
hake
depth
2. B i o l o g i c a l sampling
programme
The progrdmme f o r demersal s p e c i e s was c o n t i n u e d by INIP (Institute Nacional
de InvestigaqHo d a s P e s c a s ) , i n 1983, on board o f r e s e a r c h v e s s e l s and a t t h e
most i m p o r t a n t Portuguese p o r t s .
I t has i n c l u d e d mainly l e n g t h frequency measurements, o t o l i t h s / s c a l e s
maturity studies.
and
The t a b l e s p r e s e n t t h e sampling d a t e c o n c e r n i n g hake ( M e r l u c c i u s
merlucci~ln],
hib [ ~ r i s o p . t e r ~ ~L
s I S C L J Sand
) seabreams. 'The d a t e f o r seabreams c o n c e r n moj-nly
t h e f o l l o w i n g o [ ~ e c i P s : Ooops
pa-
Sporilr,
Sarripling
d a t e f o r Hake
Season
Area
=,ellus
a c a r n e , P . bogaraveo, Oiplodus
(Merluccius
rnerluccius)
No of
No of samples
fish
Measured
65
444
4 0 004
1 002
znd
72
509
33 483
1 031
3rd
45
37 3
1 9 781
452
4th
102
301
1 9 145
571
284
1 627
1 1 2 413
3 056
lSt
Year 19031
Rese~*rch
vessels
Aged
*
Market
samples
[q~arter)
T X ~
boops.
and Spondyliosoma c a n t h a r u s .
vuli:ilris,
**
r a c i a1
invesc.
I
+,
Otoliths not yet read
L*
no r a c i a l i n v e s t i g a t i o n
i n INIP
Sampling d a t e f o r Bib
Season
(quarter)
[Trisopterus
No
of
luscusl
samples
Research
vessel
Market
samples
No
Measured
lSt
405
22 106
znd
38 9
20 181
3rd
4th
Year 1983
377
18 373
3
341
19 017
3
1 462
79 627
of
fish
Aged
r a c i a l I'
invest.
Sampling d a t e f o r Seabreams
Area
No
Season
i [quarter]
I X ~
of
Research
vessel
samples
Market
samples
No
Measured
of
fish
~ g e d * r a c i a l cu
invest.
lSt
40
142
5 815
188
2"'
41
204
6 876
240
217
5 983
131
206
7 251
174
769
25 925
733
3rd
4th
Year 1983
35
116
I
* i n c l u d i n g o t o l i t h s and s c a l e s c o l l e c t e d , not r e a d
and P a g e l l u s
**
acarne)
no r a c i a l s t u d i e s i n INIP
(Eloops
boops
( 2
SPAIN
, y e - ; -y..?
.
SWEDEN
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UGITED ICIITGDO,;
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U.S.A.
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USA d i d n o t f i s h o r c o n d u c t f i e l d r e s e a r c h c o n c e r n ? n g
c?emersnl s p e c i e s duria; 1953. .S- a p o r t c_" T E A reve::rclc
i n t h e Xorth:;est A t l a n t i c n r e s tail 5e f o u n d i n t h c iil?nosl.
X e p o r t t o I'iliTO.
Table 1. Biological data on cod f o r 1983.
.
I
I
n
HI
IY
Total
A l l f i s h combined
Aged
1419
9166
19355
3052
3264
11%
2500
970
311
500
I03861
420217
16814
43976
4429
I7611
-
-
Table 2. Biological data on haddock f o r 1983.
Number of f i s h
ICES
Subareas
Total
: season
f
; Measwed
j b ; ; z ~ d for;
Table 3. Biological data on redfish f o r 1983.
ICES
Subareas
n~
ila
Total
:Season
I
Number of f i s h
ZAnalysed :
I Neeasurea j f o r food :
Aged
Table 4. Biological data on Greenland halibut f o r 1983.
I C S
Subarea
Total
i
Season
:
:Measured
Nunrfrar of f
:Analysed
j for food
&
:
:
&
Aged
&
<
Table 5. Biological data on sai'the f o r 1983.
IGm
Subareas
Total
i season
:
i Meam..--.
Du-cu
of f i s h
:
for :
: Analgsed
food
"-3
ng=\
Table 6.Biological data on catfish for 2983.
ICFS
Subareas
Total
.i
i Measured
Number of f i s h
Analysed for
food
i
Aged
-
75
-
Table 7. Biological data on plaice f o r 1983.
ICES
Subarea8
Total
:
Number of f i s h
iMeasured
:
:Analysed
for oOd
1
Aged
Table 8. Biological data on long rough dab for 1983.
ICES
Subareas
fotal
.'
i:
:
hfeasuped
Number of f i s h
Analgsed for
food
.
i
Aged