Prey selection of offshore killer whales Orcinus orca in the Northeast Atlantic in late summer: spatial associations with mackerel

  title={Prey selection of offshore killer whales Orcinus orca in the Northeast Atlantic in late summer: spatial associations with mackerel},
  author={Leif N{\o}ttestad and L. D. Sivle and Bj{\o}rn Arne Krafft and Lise Lang{\aa}rd and Valantine Anthonypillai and Matteo Bernasconi and Herdis Lang{\o}y and Anders Fern{\"o}},
  journal={Marine Ecology Progress Series},
The traditional perception of prey species preference of killer whales Orcinus orca L. in the Northeast Atlantic has, to a large extent, been linked to herring Clupea harengus L. Few studies have investigated the feeding ecology of killer whales from the offshore parts of this eco- system. We conducted 2 summer-season ecosystem-based surveys in the Norwegian Sea, when it is most crucial for these animals to build up their energy reserves, using observational, acoustic, oceanographic, plankton… 

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