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Benthic Fauna of Oga Bay (Novaya Zemlya, Kara Sea)
Oceanology ( IF 1.3 ) Pub Date : 2020-02-25 , DOI: 10.1134/s0001437019060213 A. A. Udalov , A. A. Vedenin , A. I. Chava , S. A. Shchuka
中文翻译:
奥加湾底栖动物群
更新日期:2020-02-25
Oceanology ( IF 1.3 ) Pub Date : 2020-02-25 , DOI: 10.1134/s0001437019060213 A. A. Udalov , A. A. Vedenin , A. I. Chava , S. A. Shchuka
Abstract
The benthic fauna of Oga Bay (Kara Sea, Novaya Zemlya archipelago) was studied in 2015–2016 during the R/V Akademik Mstislav Keldysh expeditions. Five grab stations at depths of 70–140 m were sampled (three grabs per station). Three macrobenthic communities consecutively replacing each other from the inner near-glacier part of the bay toward the outer slope were revealed. Concentration of suspended matter in the water column and in the near-bottom layer, caused by powerful sedimentation from the Goluboi (Oga) glacier was the main factor determining the macrobenthic communities distribution. An overall decrease in abundance, biomass and diversity of macrofauna was found in the area of glacier discharge. The community dominated by bivalve Portlandia arctica inhabits the main part of the bay. The peculiarities of the benthic communities of the Arctic glacial bays and fjords are discussed.中文翻译:
奥加湾底栖动物群