Polar Biology

, Volume 24, Issue 8, pp 572–576

Lipid indicators of the diet of the sympagic amphipod Gammarus wilkitzkii in the Marginal Ice Zone and in open waters of Svalbard (Arctic)

  • Catherine L. Scott
  • Stig Falk-Petersen
  • Bjørn Gulliksen
  • Ole-Jørgen Lønne
  • John R. Sargent
Original Paper

DOI: 10.1007/s003000100252

Cite this article as:
Scott, C.L., Falk-Petersen, S., Gulliksen, B. et al. Polar Biol (2001) 24: 572. doi:10.1007/s003000100252

Abstract.

Triacylglycerols were the major lipid and wax esters a minor lipid in the Arctic autochthonous, sympagic amphipod, Gammarus wilkitzkii, from less than 1 year old to 3 years old in the Marginal Ice Zone around Svalbard. The fatty acids of the triacylglycerols, especially in young G. wilkitzkii, were mainly characteristic of diatoms and, to a lesser extent, flagellates. Small amounts of 20:1n-9 and 22:1n-11 fatty acids characteristic of calanoid copepods were also present in the triacylglycerols in young G. wilkitzkii from the Marginal Ice Zone and the amounts of both of these fatty acids increased in the triacylglycerols as the animals matured. G. wilkitzkii in open waters in Kongsfjord had minor amounts of triacylglycerols rich in 20:1n-9 and 22:1n-11 and major amounts of wax esters characteristic of calanoid copepods. We conclude that young G. wilkitzkii in the Marginal Ice Zone feed predominantly on ice algae and that they consume increasing amounts of calanoid copepods as they mature, albeit with ice algae remaining a prominent component of their diet. In open waters, young G. wilkitzkii consume mainly calanoid copepods.

Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  • Catherine L. Scott
    • 1
  • Stig Falk-Petersen
    • 2
  • Bjørn Gulliksen
    • 3
  • Ole-Jørgen Lønne
    • 3
  • John R. Sargent
    • 1
  1. 1.Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, UK
  2. 2.Norwegian Polar Institute (NP), 9226, Tromsø, Norway
  3. 3.UNIS, 9171 Longyearbyen, Svalbard, Norway

Personalised recommendations