FN Archimer Export Format
PT J
TI Identifying partners at sea from joint movement metrics of pelagic pair trawlers
BT 
AF Joo, Rocío
   Bez, Nicolas
   Etienne, Marie-Pierre
   Marin, Pablo
   Goascoz, Nicolas
   Roux, Jerome
   Mahévas, Stephanie
AS 1:1,2,3;2:4;3:5;4:6;5:7;6:1;7:1;
FF 1:;2:;3:;4:;5:PDG-RBE-STH-LTBH;6:PDG-RBE-EMH;7:PDG-RBE-EMH;
C1 IFREMER, Unité Ecologie et Modèles pour l’Halieutique, Centre Atlantique, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France
   Department of Wildlife Ecology and Conservation, Fort Lauderdale Research and Education Center, University of Florida, Fort Lauderdale, FL, USA
   Global Fishing Watch, Research and Innovation Team, Washington, DC 20036, USA
   MARBEC, Univ Montpellier, IRD, Ifremer, CNRS, Sète, France
   Univ Rennes, Agrocampus Ouest, CNRS, IRMAR—UMR 6625, F-35000 Rennes, France
   Instituto del Mar del Perú (IMARPE), Chucuito, Callao, Peru
   IFREMER, Laboratoire de Technologie et de Biologie Halieutique, Station de Lorient, 8, rue François Toullec, 56100 Lorient, France
C2 IFREMER, FRANCE
   UNIV FLORIDA, USA
   GLOBAL FISHING WATCH, USA
   IRD, FRANCE
   UNIV RENNES, FRANCE
   IMARPE, PERU
   IFREMER, FRANCE
SI LORIENT
   NANTES
SE PDG-RBE-STH-LTBH
   PDG-RBE-EMH
UM MARBEC
IN WOS Ifremer UPR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 3.906
TC 2
UR https://archimer.ifremer.fr/doc/00696/80778/84304.pdf
LA English
DT Article
DE ;collective behaviour;dyadic joint movement metrics;fishing tactics;Gaussian mixture model;vessel monitoring system
AB Here, we present an approach to identify partners at sea based on fishing track analysis, and describe this behaviour in several fleets: pelagic pair trawlers, large and small bottom otter trawlers, mid-water otter trawlers, all in the North-East Atlantic Ocean, anchovy purse-seiners in the South-East Pacific Ocean, and tuna purse-seiners in the western Indian Ocean. This type of behaviour is known to exist within pair trawlers, since these vessels are in pairs at least during their fishing operations. To identify partners at sea, we used a heuristic approach based on joint-movement metrics computed from vessel monitoring system data and Gaussian mixture models. The models were fitted to joint-movement metrics of the pelagic pair trawlers, and subsequently used to identify partners at sea in other fleets. We found partners at sea in all of the fleets except for the tuna purse-seiners. We then analysed the connections between vessels and identified exclusive partners. Exclusiveness was more common in pelagic pair trawlers and small bottom otter trawlers, with 82% and 74% of the vessels involved in partnerships having exclusive partners. This work shows that there are collective tactics at least at a pairwise level in diverse fisheries in the world. 
PY 2021
PD AUG
SO Ices Journal Of Marine Science
SN 1054-3139
PU Oxford University Press (OUP)
VL 78
IS 5
UT 000696576500016
BP 1758
EP 1768
DI 10.1093/icesjms/fsab068
ID 80778
ER

EF