RESSGASC 21

Name: RESSGASC 21
Start: 1990-02-22
End: 1990-03-10
Location: Bay of Biscay

Type	Oceanographic cruise
Set	This cruise is part of the set RESSGASC
Ship	Gwen Drez
Ship owner	Ifremer
Dates	22/02/1990 - 10/03/1990
Chief scientist(s)	GUICHET Roger
	IFREMER STATION DE LA ROCHELLE-L'HOUMEAU Place du Séminaire BP 7 17137 L'HOUMEAU +33 (0)5 46.50.94.40
DOI	10.17600/90006811
Objective	Estimation of the size composition of discards for hake, Nephrops prawns and sole by small-scale offshore trawlers fishing between the Glénan islands and the Landes coast. The samples taken supplement the sampling done in some fish auctions and make it possible to obtain the size composition of catches (landings + discards) of fishing vessels. This cruise is part of a quarterly observation programme.

Sea/Ocean

Bay of Biscay

(GOLFE DE GASCOGNE)

Ports

Port of departure : Concarneau (France)

Port of return : La Rochelle (France)

Project

INTEGRATED APPROACH - BAY OF BISCAY

Scientific Authority

IFREMER STATION DE LA ROCHELLE-L'HOUMEAU

Place du Séminaire

BP 7

17137 L'HOUMEAU

+33 (0)5 46.50.94.40

Participating bodie(s)

IFREMER

Discipline(s)

BIOLOGICAL OCEANOGRAPHY
FISHERIES
CROSS-DISCIPLINE

Code	Label	Quantity	PI
B19	Demersal fish merlu,sole,baudroie,merlan,rouget barbet	30 specimens	GUICHET Roger
B21	Crustaceans langoustines	30 specimens	GUICHET Roger
B65	Exploratory fishing chalutages (type 25 m vendeen)	30 hauls	GUICHET Roger
B90	Other biological/fisheries meas. prelevements otolithes et illiciums	-	GUICHET Roger

Summary of measurements

-30 trawl hauls using 25 m ¿Vendéen-type¿ bottom trawl.
-Sorting and weighing of various species of fish and crustaceans.
-Systematic measurement by sex of hake, sole, angler, Nephrops, whiting and goatfish.
-Otolith samples taken in hake, sole and whiting, illicia samples taken in angler fish.

Location map

Positionning system

Geodetic system : VALEUR INDEFINIE

Bibliography

Publications

Drouineau Hilaire, Mahevas Stephanie , Bertignac Michel , Duplisea Daniel (2010). A length-structured spatially explicit model for estimating hake growth and migration rates. Ices Journal Of Marine Science, 67(8), 1697-1709. Publisher's official version : https://doi.org/10.1093/icesjms/fsq042 , Open Access version : https://archimer.ifremer.fr/doc/00016/12714/

References of Technical Reports

Tissiere Laurie (2013). Gouvernance et usages du golfe de Gascogne. Etude pour une approche intégrée de la pêcherie de sole commune.

Herbland Alain (2002). Chantier Golfe de Gascogne. Rôle des forçages naturels et anthropiques sur les écosystemes et les principales ressources halieutiques du golfe de Gascogne. Rapport mi-parcours.

Guichet Roger (1990). Campagne RESSGASC 21 du N/O Gwen Drez du 22 février au 10 mars 1990.