Beyond the shelf: shipboard surveys for cetaceans in European Atlantic offshore waters
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AuthorsMacLeod, K. (Kelly); Cañadas, A. (Ana); Gillispie, D.; Leaper, R.; Lens, S. (Santiago); Rogan, E. (Emer); Swift, R.; Uriarte, A. (Ainhize); Van-Canneyt, O.; Vázquez, J.A. (José Antonio); Hammond, P.S. (Philipp)
Since 1994 there have been two major surveys (SCANS and SCANS-II) of the European continental shelf to generate estimates of abundance for the harbour porpoise to contribute to an assessment of the impact of bycatch. In contrast, European offshore waters have only been partially surveyed and the abundance estimates generated suffer from several sources of bias. Offshore surveys to generate unbiased abundance estimates are especially important to complement on-shelf surveys for species that are distributed in both habitats. The CODA project will generate new information on the distribution, abundance and habitat preferences of cetaceans in the offshore European Atlantic; these data will contribute to bycatch assessment for common dolphin and to our understanding of the effects of military and industrial activities on deep divers. The survey area included offshore waters of the European Fishing Zone west of the UK, Ireland, France and Spain. Shipboard surveys were carried out during July ...
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