Distribution and Abundance of Fin whales and other baleen whales in the European Atlantic
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AuthorsMacLeod, K. (Kelly); Burt, L. (Louise); Cañadas, A. (Ana); Lens, S. (Santiago); Rogan, E. (Emer); Santos, M.B. (María Begoña); Uriarte, A. (Ainhize); Van-Canneyt, O. (Oliver); Vázquez, J.A. (José Antonio); Hammond, P.S. (Philipp)
The abundance of fin whales (Balaenoptera physalus) and other baleen whales was generated from data collected during shipboard sightings surveys as part of the Cetacean Offshore Distribution and Abundance in the European Atlantic project (CODA). The survey area covered offshore waters beyond the continental shelf of the UK, Ireland, France and Spain. The area was stratified into four blocks and was surveyed by five ships during July 2007. Double platform methods employing the trialconfiguration method (BT-method) were used. Fin, sei (B. borealis) and minke whales (B. acutorostrata) were positively identified, with possible sightings of blue whales (B. musculus). Abundance was estimated for these species and for “large baleen whales” which included fin, sei, fin/sei and blue whales. Abundance for the larger species was estimated using the Mark- Recapture Line Transect design-based method and also model-based methods using density surface modelling. Sample size limitations dictated ...
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