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Vol. 15 (2012 year), No. 4

Orlova E.L., Zaytseva K.A., Yakovlev A.P.
Climate and variability of Euphausiacea species composition in the Barents Sea

Long term variability of four euphausiid species composition caused by climatic variations in the Barents Sea (1953-2009) has been considered. Differences in spatial distribution, ranges, and abundance of ecologically heterogeneous species have been revealed. The current warm period is characterized by domination of Arcto-boreal species Thysanoessa inermis, depressed state of coldwater species T. raschii and intensified transfer of oceanic species Meganyctiphanes norvegica and T. longicaudata from the Norwegian Sea. The object of the work is to study the reactions of different species of euphausiids on climatic changes in the Barents Sea, peculiarities in formation of their structure in different climatic periods and their significance in production processes.

(in Russian, стр.6, fig. 3, tables. 1, ref 26, Adobe PDF, Adobe PDF 0 Kb)