Abundance of baleen whales in the European Atlantic
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AuthorsHammond, P.S. (Philipp); MacLeod, K. (Kelly); Burt, L. (Louise); Cañadas, A. (Ana); Lens, S. (Santiago); Mikkelsen, B. (Bjarni); Rogan, E. (Emer); Santos, M.B. (María Begoña); Uriarte, A. (Ainhize); Van-Canneyt, O. (Olivier); Vázquez, J.A. (José Antonio)
The abundance of fin whales (Balaenoptera physalus), sei whales (B. borealis) and minke whales (B. acutorostrata) was estimated from data collected during shipboard sightings surveys conducted as part of CODA and TNASS (Faroese block) in July 2007 in offshore waters of the European Atlantic west of the UK, Ireland, France and Spain, combined with data collected from shipboard and aerial surveys of European Atlantic continental shelf waters conducted as part of SCANS-II in July 2005. Double platform methods employing the trial-configuration method (BT-method) were used in all shipboard surveys. Analysis used Mark-Recapture Distance Sampling to account for animals missed on the transect line. Density surface modelling was undertaken to generate model-based abundance estimates and maps of predicted density. Estimates are presented for the SCANS-II and CODA survey areas. Estimates for the Faroese block of TNASS have been presented elsewhere. The abundance of fin whales in the CODA ...