Records of the gadoid fish Arctogadus glacialis (Peters, 1874) in the European Arctic

摘要

The Arctogadus glacialis is endemic to the Arctic Ocean and its apparently disjunct circumpolar distribution range from the Siberian coast through the Chukchi Sea and the Canadian Arctic to the shelf off NE Greenland. Records of A. glacialis are scarce in the European Arctic and here we present all available and reliable records of the species in the area. Altogether, 296 specimens of A. glacialis are reported from 53 positions in the European Arctic during the period 1976-2008. The specimens were registered off Iceland and the Jan Mayen Island, northwest and northeast of Svalbard, northeast in the Barents Sea, and south and east off Franz Josef Land. The additional records show that A. glacialis display a circumpolar and more continuous distribution than described before. In the European Arctic, A. glacialis has been caught at 155-741 m depth with the highest abundance at 300-400 m. We therefore suggest that A. glacialis is more associated to the continental shelves surrounding the Arctic Ocean than previouslyrnthought. The length-weight relation of A. glacialis is similar across the European Arctic.