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Pelagic behavior of adult Greenland halibut (Reinhardtius hippoglossoides)
Vollen, T.; Albert, O.T. (2008). Pelagic behavior of adult Greenland halibut (Reinhardtius hippoglossoides). Fish. Bull. 106(4): 457-470
In: Fishery Bulletin. US Government Printing Office: Washington, D.C.. ISSN 0090-0656; e-ISSN 1937-4518
Peer reviewed article  
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  • Vollen, T.
  • Albert, O.T.
Abstract
    It is evident from several field experiments with vertical longlines and archival tags, as well as concurrent studies of predator-prey relationships, that adult specimens of the deep-water f latfish Greenland halibut (Reinhardtius hippoglossoides) make regular excursions several hundred meters through the water column. The distribution of longline catches within the water column is confined to a well-defined depth layer overlapping with the distribution of blue whiting (Micromesistius poutassou), an important prey species, and depth recordings from archival tags overlap with Atlantic herring (Clupea harengus), the other major fish prey. The degree of pelagic use varies with fish size as well as seasons. Smaller individuals are found further off the bottom, and pelagic activity is greatest during early autumn. Interaction with pelagic prey species can inf luence results from bottom trawl surveys.
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