Age/size relations and food of two snailfishes,Liparis gibbus and Careproctus reinhardii (Teleostei,Liparididae) from Spitsbergen coastal waters |
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Authors: | I B Falk-Petersen V Frivoll B Gulliksen T Haug W Vader |
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Institution: | (1) Institute of Fisheries, University of Tromsø, Guleng, P. O. Box 3085, N-9001 Tromsø, Norway;(2) Department of Marine Biology Tromsø Museum, University of Tromsø, P. O. Box 2550, N-9001 Tromsø, Norway;(3) Department of Zoology, Tromsø Museum, University of Tromsø, P. O. Box 2550, N-9001 Tromsø, Norway |
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Abstract: | Summary The snailfish family Liparididae was well represented in bottom trawl hauls (205–370 m) from the Spitsbergen area, with Liparis gibbus being the dominant species. Careproctus reinhardti was less numerous. The present paper is based on 539 specimens of C. gibbus (size range 6–25cm) and 120 specimens of L. reinhardti (size range 5–26 cm). Both species showed a rather similar size and age distribution. The stomach contents reveal that both snailfish species feed both benthically and pelagically. Crustaceans, especially amphipods and decapods, were the most common prey items. With increasing size of the fish, the decapod Pandalus borealis becomes more important, particularly for L. gibbus. Juvenile Liparis (1.3–4.3 cm in length) were found pelagically (35–200 m), and their diet mainly consisted of copepods and young hyperiid amphipods. |
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