PEGASE 97

Type Oceanographic cruise
Ship Thalassa
Ship owner Ifremer
Dates 06/05/1997 - 03/06/1997
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 10.17600/97040040
Objective The PEGASE97 cruise was the first integrated operation conducted in the frame of the "ecology of small pelagics" programme scheduled over a three-year period, designed to test the hypotheses put forward on the basis of previous studies on determinism of spawning grounds and anchovy recruitment. The study carries on from cruises made between 1989 and 1992 to assess the biomass of the stock and from ERAG 93 and 94 which made it posible to establish a few hypotheses about three preferential spawning zones: the influence of freshened water from the Gironde and Adour rivers and the physical phenomena linked to the continental shelf breaks, particularly in the Fer à Cheval ("horseshoe") sector. This cruise was the first IFREMER mission to implement this many different tools (mechanical and IT tools) aboard the new fisheries research vessel THALASSA over a period of one month. Effectively, actions for acoustics, hydrology, plankton catches, pelagic and bottom trawling were all integrated, as were numerous data processing systems perfected for use on this ship. The multiplicity of actions provided the opportunity to check the vessel's good operability and study the feasibility of future actions.

Data managed by SISMER

Bibliography

Publications

Bergeron Jean-Pierre (2004). Contrasting years in the Gironde estuary (Bay of Biscay, NE Atlantic) springtime outflow and consequences for zooplankton pyruvate kinase activity and the nutritional condition of anchovy larvae: an early view. ICES Journal of Marine Science, 61(6), 928-932. Publisher's official version : https://doi.org/10.1016/j.icesjms.2004.06.019 , Open Access version : https://archimer.ifremer.fr/doc/00000/448/


Puillat IngridORCID, Lazure PascalORCID, Jegou Anne-Marie, Lampert LuisORCID, Miller P (2004). Hydrographical variability on the French continental shelf in the Bay of Biscay, during the 1990s. Continental Shelf Research, 24(10), 1143-1163. Publisher's official version : https://doi.org/10.1016/j.csr.2004.02.008 , Open Access version : https://archimer.ifremer.fr/doc/00000/779/


References of Technical Reports

Prouzet Patrick (1999). Point sur la pêcherie et la population d'anchois du Golfe de Gascogne. Document de travail pour la commission anchois du CNPMEM du 17/11/99.


Prouzet Patrick, Masse Jacques (1999). Point sommaire sur la biologie et les caractéristiques de la pêcherie de sardine Atlantique (Sardina pilchardus pilchardus) du golfe de Gascogne. https://archimer.ifremer.fr/doc/00304/41570/


Caill-Milly NathalieORCID, Laborde Serge (1999). La filière pêche en Aquitaine et au nord de l’Espagne.


Moguedet Philippe (1998). Conférence IEO/IFREMER pour le développement de recherches intégrées sur le Golfe de Gascogne (Santander, 25-27 novembre 1998). Document de synthèse.


Thesis using campaign data

Plounevez Serge (1999). Environnement biotique et comportement trophique de l’anchois (Engraulis encrasicolus L.) dans le golfe du Lion et le golfe de Gascogne. PhD Thesis, Université de la Méditerranée.