FN Archimer Export Format PT J TI Identifying mature fish aggregation areas during spawning season by combining catch declarations and scientific survey data BT AF Alglave, Baptiste Vermard, Youen Rivot, Etienne Etienne, Marie-Pierre Woillez, Mathieu AS 1:1,2;2:1;3:2;4:3;5:4; FF 1:PDG-RBE-HALGO-EMH;2:PDG-RBE-HALGO-EMH;3:;4:;5:PDG-RBE-HALGO-LBH; C1 DECOD (Ecosystem Dynamics and Sustainability), IFREMER, Institut Agro, INRAE, Nantes, France DECOD (Ecosystem Dynamics and Sustainability), Institut Agro, IFREMER, INRAE, Rennes, France Mathematical Research Institute of Rennes IRMAR, Rennes University, Rennes, France DECOD (Ecosystem Dynamics and Sustainability), IFREMER, Institut Agro, INRAE, Brest, France C2 IFREMER, FRANCE INST AGRO RENNES-ANGERS, FRANCE UNIV RENNES, FRANCE IFREMER, FRANCE SI NANTES BREST SE PDG-RBE-HALGO-EMH PDG-RBE-HALGO-LBH UM DECOD IN WOS Ifremer UMR WOS Cotutelle UMR copubli-france copubli-univ-france IF 2.4 TC 1 UR https://archimer.ifremer.fr/doc/00817/92910/99342.pdf LA English DT Article DE ;species distribution model;spatio-temporal model;hierarchical model;VMS and logbook data;aggregation areas;fish reproduction areas AB Identifying and protecting essential fish habitats like spawning grounds requires an accurate knowledge of fish spatio-temporal distribution. Commercial declarations coupled with Vessel Monitoring System provide fine scale information on the full year to map fish distribution and identify essential habitats. We developed an integrated framework to infer fish spatial distribution on a monthly time step by combining scientific and commercial data while explicitly considering the preferential sampling of fishermen towards areas of higher biomass. We developed a method to identify areas of persistent aggregation of biomass during the spawning season and interpret these as spawning areas. The model is applied to infer maps of relative biomass for three species (sole, whiting, squids) in the Bay of Biscay on a monthly time step over a 9-year period. Integrating several fleets in inference provides a good coverage of the area and improves model predictions. The preferential sampling parameters give insights into the temporal dynamics of the targeting behavior of the different fleets. Last, persistent aggregation areas reveal consistent with the available literature on spawning grounds, highlighting the potential of our approach to identify reproduction areas. PY 2023 PD MAY SO Canadian Journal Of Fisheries And Aquatic Sciences SN 0706-652X PU Canadian Science Publishing VL 80 IS 5 UT 000938848300001 BP 808 EP 824 DI 10.1139/cjfas-2022-0110 ID 92910 ER EF