PELGAS 2012

Name: PELGAS 2012
Start: 2012-04-25
End: 2012-06-05
Location: Bay of Biscay

Type	Oceanographic cruise
Set	This cruise is part of the set PELGAS
Ship	Thalassa
Ship owner	Ifremer
Dates	25/04/2012 - 05/06/2012
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	10.17600/12040030
Objective	1) Assessing anchovy and sardine biomasses in the Bay of Biscay using acoustics and associated pelagic trawling. 2) Characterizing hydro-biological habitats. 3) Acquiring data in the PELGAS configuration with the multibeam fisheries echosounder (SMFH). 4) Acquiring acoustic target indicators and video recordings of small pelagic fish. This cruise was conducted in the EU Data Collection Framework (DCF) and the Ifremer project on ecology of fished populations (Popex) run by the Biological resources and environment (RBE) department.

Sea/Ocean

Bay of Biscay

Celtic Sea

(+ Mer d'Iroise)

Ports

Port of departure : Santander (Spain)

Port of return : Brest (France)

Project

Exploited populations

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, Sète) - Université (La Rochelle) - CRMM (La Rochelle) - Institut Pasteur (Lille) - CNR-ISMAR (Italie) - CNPMEM (Paris)

Discipline(s)

CHEMICAL OCEANOGRAPHY
BIOLOGICAL OCEANOGRAPHY
ENVIRONMENT
FISHERIES
PHYSICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B02	Phytoplankton pigments (eg chloroph Bouteilles (chlorophylle)	57 stations	HURET Martin
B07	Pelagic bacteria/micro-organisms Bouteilles (micro-zooplancton)	-	HURET Martin
B09	Zooplankton WP2 (76), multinet (37), filet carré (37), TAPS (49)	199 hauls	HURET Martin
B13	Eggs & larvae CUFES	713	HURET Martin
B14	Pelagic fish Identification, tailles, âges	61 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 écho-sondage vertical	-	DORAY Mathieu
B65	Exploratory fishing Chalutages pélagiques	61 hauls	MASSE Jacques
G73	Single-beam echosounding En continu (6500 min)	-	DORAY Mathieu
G74	Multi-beam echosounding En continu (6500 min)	-	DORAY Mathieu
H09	Water bottle stations	77 stations	HURET Martin
H10	CTD stations	122 stations	HURET Martin
H11	Subsurface meas. underway (T,S) En continu	-	MASSE Jacques
H22	Phosphate	77 stations	HURET Martin
H24	Nitrate	60 stations	HURET Martin
H25	Nitrite	77 stations	HURET Martin
H26	Silicate	77 stations	HURET Martin
H71	Surface measurements underway (T,S) En continu (T, sal, Fluo) (6500 min)	-	HURET Martin
H76	Ammonia	77 stations	HURET Martin
M06	Routine standard measurements	-	MASSE Jacques
P01	Suspended matter	77 stations	HURET Martin

Summary of measurements

-Acoustic exploration (acquisition and storage of signals on 6 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).
-CTD 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 on behalf of the cruise.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS différentiel

Joint document(s)

Information concerning the cruise PELGAS

Published data

Petitgas Pierre, D'Elbée Jean, Pennors Laurence, Bourriau Paul, Marchand Laetitia (2024). Stomach contents of small pelagic fishes in the Bay of Biscay. https://doi.org/10.17882/77966

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

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/

Perrot Laurie, Gohin Francis, Ruiz-Pino Diana, Lampert Luis , Huret Martin , Dessier Aurelie, Malestroit Pascale, Dupuy Christine, Bourriau Paul (2018). Coccolith-derived turbidity and hydrological conditions in May in the Bay of Biscay. Progress In Oceanography, 166, 41-53. Publisher's official version : https://doi.org/10.1016/j.pocean.2017.12.008 , Open Access version : https://archimer.ifremer.fr/doc/00416/52790/

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/

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/

Kenov Isabella Ascione, Muttin Frederic, Campbell Rose, Fernandes Rodrigo, Campuzano Francisco, Machado Fernando, Franz Guilherme, Neves Ramiro (2015). Water fluxes and renewal rates at Pertuis d'Antioche/Marennes-Oléron Bay, France. Estuarine Coastal And Shelf Science, 167, 32-44. https://doi.org/10.1016/j.ecss.2015.05.031

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

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/

Chouvelon Tiphaine, Chappuis A., Bustamante Paco, Lefebvre Sebastien, Mornet Francoise, Guillou G., Violamer L., Dupuy Christine (2014). Trophic ecology of European sardine Sardina pilchardus and European anchovy Engraulis encrasicolus in the Bay of Biscay (north-east Atlantic) inferred from delta C-13 and delta N-15 values of fish and identified mesozooplanktonic organisms. Journal Of Sea Research, 85, 277-291. Publisher's official version : https://doi.org/10.1016/j.seares.2013.05.011 , Open Access version : https://archimer.ifremer.fr/doc/00176/28741/

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.

Doray Mathieu (2016). Effect of Target Strength equation selection on PELGAS anchovy and sardine biomass estimates. WGACEGG 2016 working document. Meeting 14-18 November, 2016. https://archimer.ifremer.fr/doc/00377/48839/

Hernandez Farinas Tania, Brun Melanie , Siano Raffaele, Delmas Daniel (2016). Définition d’un indice composition pour le phytoplancton en Manche- Atlantique, à partir des données du micro-phytoplancton du REPHY et des réseaux régionaux, et des mesures complémentaires de la flore phytoplanctonique acquises avec des techniques novatrices. Action 3 – Livrable 1. Propositions pour un indice de composition du phytoplancton, basé sur les résultats des méthodes microscopie, pigments et diversité génétique. Rapport final, février 2016. https://archimer.ifremer.fr/doc/00363/47421/

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).

Siano Raffaele, Delmas Daniel, Lampert Luis (2015). Premières propositions pour un indice de composition du phytoplancton, basé sur les résultats des méthodes pigments et diversité génétique. Action 3 - Indice Composition - Livrable 1. Rapport final, mars 2015. https://archimer.ifremer.fr/doc/00361/47263/

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

Doray Mathieu (2014). WGACEGG2014 EchoR training course. R.INT RBE/EMH 2014-01. https://doi.org/10.13155/34948

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.

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

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.

Foucher Eric , Bertrand Jacques, Dintheer Christian, Trenkel Verena (2013). Eléments de réflexion sur les demandes potentielles de campagnes océanographiques par la communauté des halieutes de l’Ifremer à l’horizon 2021.

Doray Mathieu (2013). EchoR package tutorial. RBE/EMH/13-01. https://archimer.ifremer.fr/doc/00128/23879/

Sanchez Florence , Santurtun Marina (2013). SYNThèse et Analyse des données eXistantes sur un écosystème profond transfrontalier : le gouf de Capbreton – « SYNTAX ». https://archimer.ifremer.fr/doc/00137/24787/

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.

Doray Mathieu , Masse Jacques, Huret Martin , Doremus Ghislain, Duhamel Erwan (2012). Rapport de la campagne à la mer PELGAS2012. PDG-RBE-EMH/2012-01. https://archimer.ifremer.fr/doc/00127/23832/

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.

Remond Barbara (2015). Les couches diffusantes du golfe de Gascogne : caractérisation acoustique, composition spécifique et distribution spatiale. PhD Thesis, Université Pierre et Marie Curie. https://archimer.ifremer.fr/doc/00267/37784/

File	Processing level	Size	Format
Restricted access 201204003045-sb_depth-TL_EK6018.depth	RAW DATA	91 MB	NetCDF TECHSAS
Restricted access 201204003045-sb_depth-TL_EK6038.depth	RAW DATA	91 MB	NetCDF TECHSAS
Restricted access 201204003045-sb_depth-TL_EK6070.depth	RAW DATA	91 MB	NetCDF TECHSAS
Restricted access 201204003045-sb_depth-TL_EK60120.depth	RAW DATA	91 MB	NetCDF TECHSAS
Restricted access 201204003045-sb_depth-TL_EK60200.depth	RAW DATA	91 MB	NetCDF TECHSAS
Restricted access 201204003045-sb_depth-TL_EK60333.depth	RAW DATA	89 MB	NetCDF TECHSAS
Restricted access 201204003045-sb_depth-TL_EK60500.depth	RAW DATA	36 MB	NetCDF TECHSAS