Distribution of Some Species of Gastropods Depending on Habitat Conditions in the Northwestern Part of the Okhotsk Sea

Abstract

Bottom trawl survey was carried out in summer-autumn period 2013 in the northwestern part of the Sea of Okhotsk. Such representatives of the Buccinum genus as Buccinum osagawai, Buccinum ectomocyma, Buccinum pemphigus, Buccinum rossicum Buccinum kinukatsugi, Buccinum miyauchii, and Lussivolutopsius marinae, Neptunea lamellosa, Neancistrolepis beringianus played the main role in catches. The areas of distribution, the preferred depth, soils and temperature ranges are shown for each species. For almost all of the species our data confirmed the previously published. Data on the temperature range of B. osagawai and B. ectomocyma occurrence as well as on the depths range of B. pemphigus and N. beringianus occurrence was refined. A comparison was made between ecological zones district, the map of major benthic groups of the Sea of Okhotsk, the map with the sediment and distribution area of the species.