FN Archimer Export Format PT J TI Using underwater video to assess megabenthic community vulnerability to trawling in the Grande Vasière (Bay of Biscay) BT AF MERILLET, Laurene MOUCHET, Maud ROBERT, Marianne SALAUN, Michele SCHUCK, Lucie VAZ, Sandrine KOPP, Dorothee AS 1:1,2;2:1;3:2;4:2;5:2;6:3;7:2; FF 1:PDG-RBE-STH-LTBH;2:;3:PDG-RBE-STH-LTBH;4:PDG-RBE-STH-LTBH;5:PDG-RBE-STH-LTBH;6:PDG-RBE-MARBEC-LHM;7:PDG-RBE-STH-LTBH; C1 UPMC, MNHN, CNRS, Ctr Ecol & Sci Conservat,UMR 7204, 43 Rue Buffon, F-75005 Paris, France. IFREMER, Unite Sci & Technol Halieut, Lab Technol & Biol Halieut, 8 Rue Francois Toullec, F-56100 Lorient, France. IFREMER, Lab Halieut Mediterranee, UMR MARBEC, Ave Jean Monnet, F-34200 Sete, France. C2 MNHN, FRANCE IFREMER, FRANCE IFREMER, FRANCE SI LORIENT SETE SE PDG-RBE-STH-LTBH PDG-RBE-MARBEC-LHM UM MARBEC IN WOS Ifremer jusqu'en 2018 copubli-france IF 2.759 TC 12 UR https://archimer.ifremer.fr/doc/00406/51741/52436.pdf LA English DT Article DE ;Bay of Biscay;biodiversity;bottom trawl;fishing;underwater video;vulnerability AB Trawling activities are considered to be one of the main sources of disturbance to the seabed worldwide. We aimed to disentangle the dominance of environmental variations and trawling intensity in order to explain the distribution of diversity patterns over 152 sampling sites in the French trawl fishing-ground, the Grande Vasière. Using a towed underwater video device, we identified 39 taxa to the finest taxonomic level possible, which were clustered according to their vulnerability to trawling disturbance based on functional traits. Using generalized linear models, we investigated whether the density distribution of each vulnerability group was sensitive to trawling intensity and habitat characteristics. Our analyses revealed a structuring effect of depth and substratum on community structure. The distribution of the more vulnerable group was a negative function of trawling intensity, while the distributions of the less vulnerable groups were independent of trawling intensity. Video monitoring coupled with trait-based vulnerability assessment of macro-epibenthic communities might be more relevant than the traditional taxonomic approach to identifying the areas that are most vulnerable to fishing activities in conservation planning. PY 2018 PD JUL SO Environmental Conservation SN 0376-8929 PU Cambridge Univ Press VL 45 IS 2 UT 000432394500007 BP 163 EP 172 DI 10.1017/S0376892917000480 ID 51741 ER EF