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Mov Ecol. 2017 Feb 20;5:3. doi: 10.1186/s40462-017-0094-0. eCollection 2017.

Fine-scale foraging movements by fish-eating killer whales (.

Movement ecology

Brianna M Wright, John K B Ford, Graeme M Ellis, Volker B Deecke, Ari Daniel Shapiro, Brian C Battaile, Andrew W Trites

Affiliations

  1. Marine Mammal Research Unit, Institute for the Oceans and Fisheries, University of British Columbia, AERL Building, Room 247 - 2202 Main Mall, Vancouver, BC V6T 1Z4 Canada.
  2. Department of Zoology, University of British Columbia, #4200 - 6270 University Blvd., Vancouver, BC V6T 1Z4 Canada.
  3. Pacific Biological Station, Fisheries and Oceans Canada, 3190 Hammond Bay Road, Nanaimo, BC V9T 1K6 Canada.
  4. Centre for Wildlife Conservation, University of Cumbria, Rydal Road, Ambleside, Cumbria L22 9BB UK.
  5. Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, MA 02543-1050 USA.

PMID: 28239473 PMCID: PMC5319153 DOI: 10.1186/s40462-017-0094-0

Abstract

BACKGROUND: We sought to quantitatively describe the fine-scale foraging behavior of northern resident killer whales (

RESULTS: Three-dimensional dive tracks indicated that foraging (

CONCLUSIONS: High-resolution dive tracks reconstructed using data collected by multi-sensor accelerometer tags found that movements by resident killer whales relate significantly to the vertical distributions and escape responses of their primary prey, Pacific salmon.

Keywords: Accelerometry; Biologging; Diving behavior; Dtag; Foraging; Killer whale; Movement; Orcinus orca; Pacific salmon

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