PELGAS 2011

Name: PELGAS 2011
Start: 2011-04-25
End: 2011-06-05
Location: Bay of Biscay

Type	Oceanographic cruise
Set	This cruise is part of the set PELGAS
Ship	Thalassa
Ship owner	Ifremer
Dates	25/04/2011 - 05/06/2011
Chief scientist(s)	MASSE Jacques, DORAY Mathieu
	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	10.17600/11040030
Objective	Assessing anchovy and sardine biomasses in the Bay of Biscay using acoustics and associated pelagic trawl hauls. Characterization of habitats' hydro-biological environment. Acquiring data in the PELGAS configuration with the multibeam fisheries echosounder (SMFH). Acquiring acoustic target indicators and video recordings of small pelagic fish. The cruise was conducted in the framework of Theme 4 ¿ "Fisheries resources, sustainable fishing and commercial utilization" and the programs on Information systems, observation techniques, economics and diagnosis for fishing and changes in resources and their use and Ecosystem approach for integrated management of fisheries resources.

Sea/Ocean

Bay of Biscay

Celtic Sea

(+ Mer d'Iroise)

Ports

Port of departure : Santander (Spain)

Port of return : Concarneau (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 - Nantes, Lorient, Anglet, Brest, Arcachon / Université - La Rochelle / CRMM - La Rochelle / Faculté des sciences biologiques - Alger / IMARES - IJmuiden / ANSES- Paris Institut Pasteur - Lille / Laphy - Biarritz / CLS - Toulouse

Discipline(s)

CHEMICAL OCEANOGRAPHY
BIOLOGICAL OCEANOGRAPHY
ENVIRONMENT
FISHERIES
PHYSICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B02	Phytoplankton pigments (eg chloroph Sur la CTD	113 stations	HURET Martin
B07	Pelagic bacteria/micro-organisms Bouteilles (micro-zooplancton)	58 stations	HURET Martin
B08	Phytoplankton Bouteilles (chlorophylle)	58 stations	HURET Martin
B09	Zooplankton WP2 (59) + filet multinet (30) + filet Carré (27)	-	HURET Martin
B13	Eggs & larvae CUFES	743	HURET Martin
B14	Pelagic fish Identification, tailles, âges	69 specimens	MASSE Jacques
B25	Birds Identification et comptage	-	VAN CANNEYT Olivier
B26	Mammals & reptiles Identification et comptage	-	VAN CANNEYT Olivier
B28	Acoustic reflection on marine organ Associés à echo-sondage vertical	-	DORAY Mathieu
B65	Exploratory fishing Chalutages pélagiques	69 hauls	MASSE Jacques
D06	Neutrally buoyant floats	8 deployments	HURET Martin
G73	Single-beam echosounding En continu (6450 min)	-	DORAY Mathieu
G74	Multi-beam echosounding En continu (6450 min)	-	DORAY Mathieu
H09	Water bottle stations Associées aux bathysondes	58 stations	HURET Martin
H10	CTD stations	113 stations	HURET Martin
H11	Subsurface meas. underway (T,S) En continu	-	MASSE Jacques
H22	Phosphate	58 stations	HURET Martin
H24	Nitrate	58 stations	HURET Martin
H26	Silicate	58 stations	HURET Martin
H71	Surface measurements underway (T,S) En continu (T, Sal, Fluo) (6450 min)	-	HURET Martin
H76	Ammonia	58 stations	HURET Martin

Summary of measurements

-Acoustic exploration (acquisition and storage of signals on 5 frequencies) for the distribution and abundance of pelagic fish species, mainly anchovies and sardines.
-Pelagic trawl catches to identify target species and characterize resources (size distributions, demographics, biological characteristics).
-Egg counts using surface pumping with the CUFES system to determining spawning zones.
-Catching plankton to characterize the biotic environment of small pelagic fish populations (biochemical indices descriptors of zooplankton dynamics).
-CBT stations and continuous observation to describe hydrological conditions by associating available satellite photos and circulation modelling results following the 3D model developed by P. Lazure.
-Characterizing the diversity and abundance of micro zooplankton as well as other plankton compartments in order to evaluate the structure of the plankton food web.
-Identification and visual counts of cetaceans and birds present in the area to describe higher predators in the pelagic ecosystem of the Bay of Biscay.
-Density column used to study vertical migration of eggs in the water column.
-Utilization of the towed vehicle for trawl observation (EROC) to acquire acoustic target indicators and videos of small pelagic fish and bubbles.
-Supervision and coordination of 2 professional vessels (during the first 22 days) which were fishing and taking samples on the same network as RV Thalassa to the benefit of the cruise.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS différentiel

Joint document(s)

Published data

Petitgas Pierre, Doray Mathieu, Boyra Guillermo, Duhamel Erwan, Sobradillo Bea, Martinez Urdane (2023). Maps of sardine and anchovy length distributions in the Bay of Biscay in spring and autumn. https://doi.org/10.17882/92818

Grandrémy Nina, Bourriau Paul, Daché Edwin, Danielou Marie-Madeleine, Doray Mathieu, Dupuy Christine, Huret Martin, Jalabert Laetitia, Le Mestre Sophie, Nowaczyk Antoine, Petitgas Pierre, Pineau Philippe, Raphalen Elio, Romagnan Jean-Baptiste (2023). PELGAS Bay of Biscay ZooScan zooplankton Dataset (2004-2016). https://doi.org/10.17882/94052

Boens Andy, Grellier Patrick, Duhamel Erwan, Doray Mathieu, Lebigre Christophe, Bled--Defruit Geoffrey, Petitgas Pierre (2023). Otolith growth and individual parameters of anchovy and sardine in the Bay of Biscay. https://doi.org/10.17882/96270

Data managed by SISMER

Bibliography

Publications

Menu Clara, Pecquerie Laure, Bacher Cedric , Doray Mathieu , Hattab Tarek, Van Der Kooij Jeroen, Huret Martin (2023). Testing the bottom-up hypothesis for the decline in size of anchovy and sardine across European waters through a bioenergetic modeling approach. Progress In Oceanography, 210, 102943 (20p.). Publisher's official version : https://doi.org/10.1016/j.pocean.2022.102943 , Open Access version : https://archimer.ifremer.fr/doc/00812/92434/

Grandremy Nina, Romagnan Jean-Baptiste, Dupuy Christine, Doray Mathieu , Huret Martin , Petitgas Pierre (2023). Hydrology and small pelagic fish drive the spatio–temporal dynamics of springtime zooplankton assemblages over the Bay of Biscay continental shelf. Progress In Oceanography, 210, 102949 (18p.). Publisher's official version : https://doi.org/10.1016/j.pocean.2022.102949 , Open Access version : https://archimer.ifremer.fr/doc/00813/92490/

Gatti Paul, Petitgas Pierre , Huret Martin (2017). Comparing biological traits of anchovy and sardine in the Bay of Biscay: A modelling approach with the Dynamic Energy Budget. Ecological Modelling, 348, 93-109. https://doi.org/10.1016/j.ecolmodel.2016.12.018

Meier Rhiannon E., Votier Stephen C., Wynn Russell B., Guilford Tim, Mcminn Grive Miguel, Rodriguez Ana, Newton Jason, Maurice Louise, Chouvelon Tiphaine, Dessier Aurelie, Trueman Clive N. (2017). Tracking, feather moult and stable isotopes reveal foraging behaviour of a critically endangered seabird during the non-breeding season. Diversity And Distributions, 23(2), 130-145. Publisher's official version : https://doi.org/10.1111/ddi.12509 , Open Access version : https://archimer.ifremer.fr/doc/00358/46912/

Ruffine Livio , Donval Jean-Pierre, Croguennec Claire, Bignon Laurent, Birot Dominique, Battani Anne, Bayon Germain, Caprais Jean-Claude, Lanteri Nadine, Levache Denis, Dupre Stephanie (2017). Gas Seepage along the Edge of the Aquitaine Shelf (France): Origin and Local Fluxes. Geofluids, 2017(4240818), 1-13. Publisher's official version : https://doi.org/10.1155/2017/4240818 , Open Access version : https://archimer.ifremer.fr/doc/00394/50579/

Masse Jacques, Sanchez Florence , Delaunay Damien, Robert J. M., Petitgas Pierre (2016). A partnership between science and industry for a monitoring of anchovy & sardine in the Bay of Biscay: When fishermen are actors of science. Fisheries Research, 178, 26-38. Publisher's official version : https://doi.org/10.1016/j.fishres.2015.11.018 , Open Access version : https://archimer.ifremer.fr/doc/00301/41214/

Petitgas Pierre , Woillez Mathieu , Doray Mathieu , Rivoirard Jacques (2016). A Geostatistical Definition of Hotspots for Fish Spatial Distributions. Mathematical Geosciences, 48(1), 65-77. Publisher's official version : https://doi.org/10.1007/s11004-015-9592-z , Open Access version : https://archimer.ifremer.fr/doc/00273/38380/

Chaalali Aurelie, Saint-Beat Blanche, Lassalle Geraldine, Le Loc'h Francois, Tecchio Samuele, Safi Georges, Savenkoff Claude, Lobry Jeremy, Niquil Nathalie (2015). A new modeling approach to define marine ecosystems food-web status with uncertainty assessment. Progress In Oceanography, 135, 37-47. https://doi.org/10.1016/j.pocean.2015.03.012

Chouvelon Tiphaine, Violamer L., Dessier Aurelie, Bustamante Paco, Mornet Francoise, Pignon-Mussaud Cecilia, Dupuy Christine (2015). Small pelagic fish feeding patterns in relation to food resource variability: an isotopic investigation for Sardina pilchardus and Engraulis encrasicolus from the Bay of Biscay (north-east Atlantic). Marine Biology, 162(1), 15-37. Publisher's official version : https://doi.org/10.1007/s00227-014-2577-5 , Open Access version : https://archimer.ifremer.fr/doc/00247/35859/

Petitgas Pierre , Doray Mathieu , Huret Martin , Masse Jacques, Woillez Mathieu (2014). Modelling the variability in fish spatial distributions over time with empirical orthogonal functions: anchovy in the Bay of Biscay. Ices Journal Of Marine Science, 71(9), 2379-2389. Publisher's official version : https://doi.org/10.1093/icesjms/fsu111 , Open Access version : https://archimer.ifremer.fr/doc/00222/33365/

Dupre Stephanie , Berger Laurent , Le Bouffant Naig, Scalabrin Carla , Bourillet Jean-Francois (2014). Fluid emissions at the Aquitaine Shelf (Bay of Biscay, France): A biogenic origin or the expression of hydrocarbon leakage? Continental Shelf Research, 88, 24-33. Publisher's official version : https://doi.org/10.1016/j.csr.2014.07.004 , Open Access version : https://archimer.ifremer.fr/doc/00201/31192/

Vandromme Pieter, Nogueira Enrique, Huret Martin , Lopez-Urrutia Angel, Gonzalez-Nuevo Gonzalez G., Sourisseau Marc , Petitgas Pierre (2014). Springtime zooplankton size structure over the continental shelf of the Bay of Biscay. Ocean Science, 10(5), 821-835. Publisher's official version : https://doi.org/10.5194/os-10-821-2014 , Open Access version : https://archimer.ifremer.fr/doc/00221/33246/

References of Technical Reports

Maillard De La Morandais Jeanne (2024). Compréhension de la variabilité temporelle de la croissance chez la sardine du golfe de Gascogne (Sardina pilchardus). Rapport de stage. Licence professionnelle : Métiers de la Protection de la Gestion de l’Environnement – Environnement Marin, Ressources et Gestion. Université du Littoral Cote d'Opale.

Peyrafort Manon (2015). Variations spatio-temporelles de la croissance de la sardine dans le golfe de Gascogne à partir de la série de données PELGAS (2000-2015).

Doray Mathieu , Badts Vincent , Huret Martin , Duhamel Erwan , Doremus Ghislain, Masse Jacques, Petitgas Pierre (2015). Guide du chef de mission de la campagne PELGAS. https://doi.org/10.13155/36054

Despois Emilie (2014). Analyse et comparaison de la distribution démographique de l’anchois et de la sardine du golfe de Gascogne basées sur des campagnes océanographiques automnales et printanières.

Delaunay Damien, Masse Jacques, Sanchez Florence , Grellier Patrick, Soulet Estelle, Robert Jean-Marie (2014). Étude Pilote de campagnes "sentinelles" anchois-sardine dans le golfe de Gascogne. Campagnes sentinelles et accompagnements du N/O Thalassa par des professionnels de la pêche (campagnes PELGAS) 2009-2010-2011.

Doray Mathieu , Badts Vincent , Masse Jacques, Duhamel Erwan , Huret Martin , Doremus Ghislain, Petitgas Pierre (2014). Manual of fisheries survey protocols. PELGAS surveys (PELagiques GAScogne). RBE/EMH 2014-01. https://doi.org/10.13155/30259

Depestele Jochen, Rochet Marie-Joelle (2014). Quantifying food subsidies to the benthos due to discards. Task 4.4 Report on the quantification of discard flow to the seabed, relative to natural food sources. BENTHIS - Deliverable 4.5. https://archimer.ifremer.fr/doc/00310/42146/

Petitgas Pierre , Duhamel Erwan , Doray Mathieu (2013). Coherence between Egg (BIOMAN) and Acoustic (PELGAS) survey estimates (Bay of Biscay anchovy). Working Document. ICES/ CIEM. WGHANSA, 21-28 June 2013.

ICES (2013). Report of the Working Group on Fisheries Acoustics Science and Technology (WGFAST), 16-19 April 2013 San Sebastian, Spain. ICES CM 2013/SSGESST:09.

Bertin Stephane, Duhamel Erwan (2011). La pêche à la Bolinche dans le Parc Naturel Marin d’Iroise : Description, analyse et impact. IFREMER/Lorient.

Thesis using campaign data

Grandremy Nina (2023). Dynamiques spatio-temporelles du zooplancton, en lien avec l’habitat et les petits poissons pélagiques, dans le Golfe de Gascogne. PhD Thesis, Université de Nantes.

Torelli Martina (2021). Modélisation des processus du méthane microbien en milieu marin : de la source aux émissions. Aperçus de l’analyse des bassins / Modelling Microbial Methane Processes in Marine Environments: from Source to Seep. Insights from Basin Analysis. PhD Thesis, Université Sorbonne.

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