DAAG 91

Name: DAAG 91
Start: 1991-04-06
End: 1991-04-29
Location: Bay of Biscay

Type	Oceanographic cruise
Ship	Thalassa
Ship owner	Ifremer
Dates	06/04/1991 - 29/04/1991
Chief scientist(s)	MASSE Jacques
	ÉCOLOGIE ET MODÈLES POUR L'HALIEUTIQUE Centre Ifremer de Nantes Rue de l'Ile d'Yeu BP 2105 44311 Nantes Cedex 3 +33 (0)2 40 37 41 67
DOI	10.17600/91007511
Objective	Estimating the abundance of anchovies at the beginning of the fishing season. Studying the spatial-temporal distribution of anchovies. Studying the thermal and haline (salinity) conditions which can influence the distribution of this biomass. The entire cruise took place on the continental shelf between 43N and 46.40N of the French coast at 330 W.

Sea/Ocean

Bay of Biscay

(Plateau continental 43 a 46N)

Ports

Port of departure : Brest (France)

Port of return : Saint-Nazaire (France)

Scientific Authority

ÉCOLOGIE ET MODÈLES POUR L'HALIEUTIQUE

Centre Ifremer de Nantes

Rue de l'Ile d'Yeu

44311 Nantes Cedex 3

+33 (0)2 40 37 41 67

Participating bodie(s)

IFREMER,IEO et AZTI/SIO (Instituts)

Discipline(s)

BIOLOGICAL OCEANOGRAPHY
FISHERIES

Code	Label	Quantity	PI
B13	Eggs & larvae filet BONGO	35	MASSE Jacques
B14	Pelagic fish anchois (morphometrie +genetique(150),age(700),longueur et poids(33))	883 specimens	MASSE Jacques
B28	Acoustic reflection on marine organ acquisition, echo-integration, numerisation et stockage sur DON	1520	MASSE Jacques
H10	CTD stations	118 stations	MASSE Jacques
H71	Surface measurements underway (T,S)	1520	MASSE Jacques

Summary of measurements

-Acoustic prospection, acquisition, digitization and computer storage of all data.
-Echointegration.
-Pelagic trawl hauls for identification.
-Analysis of catches (size and weight distribution).
-Morphometric analyses (anchovies).
-Hard tissue samples taken (age).
-Plankton caught.
-Regular CTD stations along the legs.

Location map

Positionning system

Geodetic system : VALEUR INDEFINIE

Data managed by SISMER

Bibliography

Publications

Scalabrin Carla , Masse Jacques (1993). Acoustic detection of the spatial and temporal distribution of fish shoals in the Bay of Biscay. Aquatic Living Resources, 6(3), 269-283. Publisher's official version : https://doi.org/10.1051/alr:1993027 , Open Access version : https://archimer.ifremer.fr/doc/00190/30111/

References of Articles published in other Periodicals or Scientific Works acclaimed in the Field

Masse Jacques (1996). L'écho-intégration en halieutique : étude et suivi de la distribution et de l'abondance des stocks exploités. Océanis, 22(1), 23-38.

References of Technical Reports

Prouzet Patrick, Metuzals-Sebedio K. (1993). L'anchois du golfe de Gascogne - Caractéristiques biologiques et campagne de pêche française en 1992.