seanoe:53388 DORAY Mathieu Ifremer, France 2021-08-03 ISO 19115:2003/19139 1.0 Biomass and abundance at length of small pelagic fish estimated during the PELGAS survey in the Bay of Biscay in springtime 2021-08-03 2021-08-03 Doray Mathieu, Duhamel Erwan, Sanchez Florence, Grellier Patrick, Pennors Laurence, Petitgas Pierre (2021). Biomass and abundance at length of small pelagic fish estimated during the PELGAS survey in the Bay of Biscay in springtime. SEANOE. https://doi.org/10.17882/53388 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., (2014, 2017a). This dataset comprises the biomass (in metric tons) and abundance (in thousands of individuals) at length (in cm) of small pelagic fish estimated during the PELGAS survey in the Bay of Biscay in springtime. Total biomass and abundance per species on one hand, and frequencies-at-lenght per species and acoustic Elementary Distance Sampling Units (EDSUs) on the other hand, have been derived from fisheries acoustic and midwater trawl data based on the methodology described in Doray et al. (2010). Frequencies-at-lenght per species and EDSUs have been averaged over the survey area for each species and multiplied by the total biomass and abundance per species, to derive global biomass and abundance at length estimates. This dataset was used in Doray et al., 2017b. 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, France DUHAMEL Erwan Ifremer, France SANCHEZ Florence Ifremer, France GRELLIER Patrick Ifremer, France PENNORS Laurence Ifremer, France PETITGAS Pierre Ifremer, France SEANOE https://www.seanoe.org/data/00422/53388/illustration.gif small pelagic fish biomass abundance length size Bay of Biscay fisheries acoustics midwater trawl anchovy sardine horse mackerel Atlantic mackerel boarfish blue whiting sprat Atlantic chub mackerel 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. 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 Spring habitats of small pelagic fish communities in the Bay of Biscay 2017 Elsevier BV DORAY MATHIEU HERVY CAMILLE HURET MARTIN PETITGAS PIERRE 10.1016/j.pocean.2017.11.003 The PELGAS survey: ship-based integrated monitoring of the Bay of Biscay pelagic ecosystem 2017 Elsevier BV 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 Manual of fisheries survey protocols. PELGAS surveys (PELagiques GAScogne) 2014 Ifremer DORAY MATHIEU BADTS VINCENT MASSE JACQUES DUHAMEL ERWAN HURET MARTIN DOREMUS GHISLAIN PETITGAS PIERRE 10.13155/30259 10.18142/18 oceans -7.218018 -0.670166 43.065605 48.294823 2000 2017 TEXTE CSV https://www.seanoe.org/data/00422/53388/#54256 WWW:DOWNLOAD-1.0-link--download Readme - 704 bytes https://www.seanoe.org/data/00422/53388/#86953 WWW:DOWNLOAD-1.0-link--download Quality controlled data 2000-2019 data (last updated version) - 237 KB https://www.seanoe.org/data/00422/53388/ WWW:DOWNLOAD-1.0-link--download Quality controlled data 2000-2017 data (obsolete version) [RESTRICTED] - 203 KB https://doi.org/10.17882/53388 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00422/53388/ rel-canonical Seanoe Sensors metadata are described in Doray et al., (2014, 2017a)