Cetacean occurrence, habitat preferences and potential for cetacean–fishery interactions in Iberian Atlantic waters: results from cooperative research involving local stakeholders
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AuthorsGoetz, S. (Sabine); Read, F.L. (Fiona); Ferreira, M. (Marisa); Portela, J. (Julio); Santos, M.B. (María Begoña); Vingada, J. (José); Siebert, U. (Ursula); Marçalo, A. (Ana); Santos, J. (Jorge); Araújo, H. (Hélder); Monteiro, S. (Silvia); Caldas, M. (Mara); Riera, M. (Marcos); Pierce, G.J. (Graham John)
1. Iberian Atlantic waters are heavily exploited by Spanish and Portuguese fisheries. Overlaps between fishery target species and cetacean diet, and between fishing grounds and cetacean foraging areas, can lead to cetacean–fishery interactions including bycatch mortality of cetaceans. 2. The present study assesses cetacean distribution, habitat preferences and hotspots for cetacean–fishery interactions by using a cooperative research approach with stakeholder participation (fishers, fisheries observers, fisheries authorities, scientists), as well as the combination of different opportunistic data sources (interviews, on-board observations). The usefulness of each data type is evaluated. The implications of results for the monitoring and mitigation of cetacean–fishery interactions are discussed. 3. Generalized linear models and GIS maps were used to relate cetacean occurrence patterns to environmental variables (geographic area, water depth, coastal morphology) and to fishing ...