EIGAS 86

Name: EIGAS 86
Start: 1986-06-06
End: 1986-06-27
Location: Bay of Biscay

Type	Oceanographic cruise
Set	This cruise is part of the set EIGAS
Ship	Thalassa
Ship owner	Ifremer
Dates	06/06/1986 - 27/06/1986
Chief scientist(s)	MASSE Jacques, LASSUS Patrick, COSSA Daniel
	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	10.17600/86002511
Objective	Using acoustic methods to study the macrodistribution and size of the main pelagic resources in the Bay of Biscay, both between 46°N and 48°N of the shelf break with 50-metre sounding and at the "horseshoe" continental rise at the coast. Supplementing data for the "coloured water" programme regarding the distribution and ocean extent of Dinophysis (see Acuminata). Assessing organic and metal contamination in the framework of the programme on "studies to support definition of standards".

Sea/Ocean

Bay of Biscay

(GOLFE DE GASCOGNE)

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, CNRS, Univ.(Nantes), ISTOM, SIO

Discipline(s)

ENVIRONMENT
METEOROLOGY
PHYSICAL OCEANOGRAPHY
BIOLOGICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B08	Phytoplankton	-	LASSUS Patrick
H10	CTD stations	20 stations	MASSE Jacques
H13	Bathythermograph	20 profiles	MASSE Jacques
H71	Surface measurements underway (T,S)	-	MASSE Jacques
M05	Occasional standard measurements	270 measurements	MASSE Jacques
P02	Trace metals	2 stations	COSSA Daniel
P04	Chlorinated hydrocarbons	2 stations	COSSA Daniel

Summary of measurements

-Underway: 2,370 nautical miles covered in systematic echointegration; CS 50 sonar for observations and seeking detections; continuous logging of surface temperature de surface; meteorological observations made every hour while prospecting.
-At stations: 24 identifications of detections by trawling: 19 with pelagic trawl, 5 with bottom trawl (total catch of fish = nearly 19 tonnes); 20 vertical temperature profiles with Sippican XBT; 40 phytoplankton samples taken (3 m, 5 m, 10 m).

Location map

Bibliography

Publications

Lassus Patrick, Bardouil Michele, Berthomé Jean-Paul, Maggi Pierre, Truquet Philippe, Le Déan Loic (1988). Seasonal occurrence of Dinophysis sp. along the French coast between 1983 and 1987. Aquatic Living Resources, 1(3), 155-164. Publisher's official version : https://doi.org/10.1051/alr:1988017 , Open Access version : https://archimer.ifremer.fr/doc/00189/30067/

References of Technical Reports

Masse Jacques (1988). Utilisation de l'écho-intégration en recherche halieutique (Analyse de 5 campagnes effectuées dans le Golfe de Gascogne de 1983 à 1987). RH/NANTES n°DRV-88030. https://archimer.ifremer.fr/doc/00455/56654/