seanoe:75325 DORAY Mathieu Ifremer, France 2021-05-12 ISO 19115:2003/19139 1.0 Small pelagic fish biomass and abundance estimates from the PELGAS survey in the Bay of Biscay 2020-07 2021-05-12 Doray Mathieu, Duhamel Erwan, Masse Jacques, Petitgas Pierre (2020). Small pelagic fish biomass and abundance estimates from the PELGAS survey in the Bay of Biscay. SEANOE. https://doi.org/10.17882/75325 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, 2018a). This dataset comprises the biomass (in metric tons) and abundance (in thousands of individuals) of small pelagic fish estimated during the PELGAS survey in the Bay of Biscay in springtime. The dataset also includes the estimation coefficient of variation, derived based on the hydroacoustic methodology described in Doray et al. (2010), and the survey area. 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, France DUHAMEL Erwan Ifremer, France MASSE Jacques Ifremer, France PETITGAS Pierre Ifremer, France SEANOE https://www.seanoe.org/data/00641/75325/illustration.gif PELGAS biomass series biomass abundance 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. Monitoring small pelagic fish in the Bay of Biscay ecosystem, using indicators from an integrated survey 2018 Elsevier BV Doray Mathieu Petitgas Pierre Huret Martin Duhamel Erwan Romagnan Jean Baptiste Authier Matthieu Dupuy Christine Spitz Jérome 10.1016/j.pocean.2017.12.004 The PELGAS survey: Ship-based integrated monitoring of the Bay of Biscay pelagic ecosystem 2018 Elsevier BV Doray Mathieu Petitgas Pierre Romagnan Jean Baptiste Huret Martin Duhamel Erwan Dupuy Christine Spitz Jérome Authier Matthieu Sanchez Florence Berger Laurent Dorémus Ghislain Bourriau Paul Grellier Patrick Massé Jacques 10.1016/j.pocean.2017.09.015 10.18142/18 oceans -7.915473 0.173522 40.457753 48.708403 2000 2019 CSV https://www.seanoe.org/data/00641/75325/data/75850.1.csv WWW:DOWNLOAD-1.0-link--download Quality controlled data Small pelagic fish biomass and abundance estimates from the PELGAS survey in the Bay of Biscay - 19 KB https://www.seanoe.org/data/00641/75325/data/75851.1.csv WWW:DOWNLOAD-1.0-link--download Dataset headers description - 1 KB https://doi.org/10.17882/75325 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00641/75325/ rel-canonical Seanoe Sensors metadata are described in Doray et al., (2014, 2018a).