seanoe:88357 DORAY Mathieu Ifremer, EMH, Nantes, France Mathieu.Doray@ifremer.fr 2024-04-17 ISO 19115:2003/19139 1.0 Mean length and weight at-age of anchovy and sardine estimated during the PELGAS survey in the Bay of Biscay in springtime 2022 2024-04-17 Doray Mathieu, Duhamel Erwan, Boiron-Leroy Anne, Marchand Laetitia, Bled--Defruit Geoffrey, Petitgas Pierre (2022). Mean length and weight at-age of anchovy and sardine estimated during the PELGAS survey in the Bay of Biscay in springtime. SEANOE. https://doi.org/10.17882/88357 In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication : Doray Mathieu, Petitgas Pierre, Romagnan Jean-Baptiste, Huret Martin, Duhamel Erwan, Dupuy Christine, Spitz Jerome, Authier Matthieu, Sanchez Florence, Berger Laurent, Doremus Ghislain, Bourriau Paul, Grellier Patrick, Masse Jacques (2018). The PELGAS survey: ship-based integrated monitoring of the Bay of Biscay pelagic ecosystem. Progress In Oceanography, 166, 15-29. https://doi.org/10.1016/j.pocean.2017.09.015 The Pélagiques Gascogne (PELGAS, Doray et al., 2000) integrated survey aims at assessing the biomass of small pelagic fish and monitoring and studying the dynamics and diversity of the Bay of Biscay pelagic ecosystem in springtime. PELGAS has been conducted within the EU Common Fisheries Policy Data Collection Framework and Ifremer’s Fisheries Information System. Details on survey protocols and data processing methodologies can be found in Doray et al., (2018a, 2021). This dataset comprises the mean length-at-age (cm) and weight-at-age (g) estimated annualy since 2000 for anchovy and sardine, based on PELGAS survey data. Both indices were weighted by fish abundance per length class, and are provided with an estimation error (coefficient of variation in %). Indices were produced following a standard methodology implemented in the EchoR R package (Doray et al. 2013). Those estimates have been validated by the ICES WGACEGG group and provided to the ICES WGHANSA group for stock assessment purposes. Data have been used in Doray et al., 2018b. PELGAS surveys have been funded by the European Common Fishery Policy Data Collection Framework through the European Maritime and Fisheries Fund, the Marine Strategy Framework Directive, and Ifremer. We want to acknowledge the joint efforts of R/V Thalassa crews and PELGAS scientists that made the survey possible. DORAY Mathieu Ifremer, EMH, Nantes, France Mathieu.Doray@ifremer.fr DUHAMEL Erwan Ifremer, LTBH, Lorient, France BOIRON-LEROY Anne Ifremer, EMMA, La Tremblade, France MARCHAND Laetitia Ifremer, MASAE, Nantes, France BLED--DEFRUIT Geoffrey Ifremer, HMMN, Boulogne, France PETITGAS Pierre Ifremer, EMH, Nantes, France SEANOE https://www.seanoe.org/data/00772/88357/illustration.gif Clupeiformes abundance-at-age time series, PELGAS survey weight length Bay of Biscay fisheries acoustics midwater trawl anchovy sardine Fisheries and aquaculture Fish ODATIS aggregation parameters and Essential Variable names 2024-09-16 geonetwork.thesaurus.external.theme.NVS.OD1 Fisheries and aquaculture SeaDataNet Parameter Disciplines 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P08 /Observational data/in-situ Type de jeux de donnée ODATIS 2024-10-15 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY-NC-SA (Creative Commons - Attribution, No commercial usage, Sharing under the same conditions) Data are published without any warranty, express or implied. The user assumes all risk arising from his/her use of data. Data are intended to be research-quality, but it is possible that these estimates or the data themselves contain errors. It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data accordingly. Authors welcome users to ask questions and report problems. A systemic approach to analyzing post-collapse adaptations in the Bay of Biscay anchovy fishery 2024 Canadian Science Publishing BECKENSTEINER JENNIFER VILLASANTE SEBASTIAN CHARLES ANTHONY PETITGAS PIERRE LE GRAND CHRISTELLE THEBAUD OLIVIER 10.1139/cjfas-2023-0087 Rapport DEFIPEL. Développement d’une approche de gestion intégrée de la filière petits pélagiques française. 2024 Ifremer Huret Martin Lehuta Sigrid Romagnan Jean-Baptiste Doray Mathieu Daures Fabienne Travers-Trolet Morgane 10.13155/104256 Hydrology and small pelagic fish drive the spatio–temporal dynamics of springtime zooplankton assemblages over the Bay of Biscay continental shelf 2023 Elsevier BV Grandremy Nina Romagnan Jean-Baptiste Dupuy Christine Doray Mathieu Huret Martin Petitgas Pierre 10.1016/j.pocean.2022.102949 ICES Survey Protocols – Manual for acoustic surveys coordinated under ICES Working Group on Acoustic and Egg Surveys for Small Pelagic Fish (WGACEGG). 1st Edition. 2021 ICES DORAY MATHIEU BOYRA GUILLERMO VAN DER KOOIJ JEROEN (EDS) 10.17895/ices.pub.7462 Monitoring small pelagic fish in the Bay of Biscay ecosystem, using indicators from an integrated survey 2018 Pergamon-elsevier Science Ltd DORAY MATHIEU PETITGAS PIERRE HURET MARTIN DUHAMEL ERWAN ROMAGNAN JEAN-BAPTISTE AUTHIER MATTHIEU DUPUY CHRISTINE SPITZ JEROME 10.1016/j.pocean.2017.12.004 The PELGAS survey: ship-based integrated monitoring of the Bay of Biscay pelagic ecosystem 2018 Pergamon-elsevier Science Ltd DORAY MATHIEU PETITGAS PIERRE ROMAGNAN JEAN-BAPTISTE HURET MARTIN DUHAMEL ERWAN DUPUY CHRISTINE SPITZ JEROME AUTHIER MATTHIEU SANCHEZ FLORENCE BERGER LAURENT DOREMUS GHISLAIN BOURRIAU PAUL GRELLIER PATRICK MASSE JACQUES 10.1016/j.pocean.2017.09.015 10.18142/18 oceans -5.668945 -0.791016 42.992527 48.125706 2000 2021 CSV https://www.seanoe.org/data/00772/88357/data/94002.sp.ages.csv WWW:DOWNLOAD-1.0-link--download Quality controlled data Anchovy and sardine mean weight and length at age, PELGAS survey - 57 KB https://www.seanoe.org/data/00772/88357/data/94007.txt WWW:DOWNLOAD-1.0-link--download Description of anchovy and sardine mean weight and length at age file headers - 1 KB https://doi.org/10.17882/88357 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00772/88357/ rel-canonical Seanoe Sensor metadata are described in Doray et al., (2018a, 2021).