Polar Biology

, Volume 36, Issue 6, pp 907–912

The diets of polar cod (Boreogadus saida) from August 2008 in the US Beaufort Sea

  • Kimberly M. Rand
  • Andy Whitehouse
  • Elizabeth A. Logerwell
  • Ernestine Ahgeak
  • Richard Hibpshman
  • Sandra Parker-Stetter
Short Note

DOI: 10.1007/s00300-013-1303-y

Cite this article as:
Rand, K.M., Whitehouse, A., Logerwell, E.A. et al. Polar Biol (2013) 36: 907. doi:10.1007/s00300-013-1303-y

Abstract

Polar cod (Boreogadus saida) play an integral part in the Arctic ecosystems linking the upper and lower trophic levels. Though their estimated biomass is considerable, recent knowledge of their diets in the US Beaufort Sea is sparse. Collections of polar cod from the US Beaufort Sea were made during August 2008 using demersal and pelagic trawls. Polar cod diet composition was quantified as percent prey weight, percent prey count, and frequency of occurrence of prey. The diet composition between the demersal- and pelagic-captured cod showed differences in all these categories. Polar cod captured in the demersal nets primarily fed on fish (by weight), and pelagic cod primarily fed on copepods (frequency of occurrence) and euphausiids (by weight). In general, these dominant preys are different than what has been reported in other studies describing polar cod diets.

Keywords

Beaufort Sea Polar cod diet Boreogadus saida 

Copyright information

© US Government 2013

Authors and Affiliations

  • Kimberly M. Rand
    • 1
  • Andy Whitehouse
    • 2
  • Elizabeth A. Logerwell
    • 1
  • Ernestine Ahgeak
    • 3
  • Richard Hibpshman
    • 4
  • Sandra Parker-Stetter
    • 4
  1. 1.Resource Ecology and Fisheries Management Division, Alaska Fisheries Science CenterNational Marine Fisheries Service, NOAASeattleUSA
  2. 2.Joint Institute for the Study of the Atmosphere and OceanUniversity of WashingtonSeattleUSA
  3. 3.School of Fisheries and Ocean Sciences, Institute of Marine ScienceUniversity of Alaska FairbanksFairbanksUSA
  4. 4.School of Aquatic and Fishery SciencesUniversity of WashingtonSeattleUSA

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