Abstract
Benthic fauna in Tsivolki Bay (Novaya Zemlya Archipelago, Kara Sea) has been studied during the voyage of the R/V Professor Shtokman in 2013 and 2014. A peculiar feature of the bay is the presence of the Serp i Molot glacier in its inner part, which determines the extremely high content of suspended particles in the water column. The bay is divided into three parts: the inner part (close to the glacier), the middle basin, and the outer slope. These parts are separated from each other by several rises. Benthic communities changed gradually from the inner part of the bay towards the outer slope. Three communities were described from the data of nine grab stations (26 samples). The apex of the bay is occupied by the depleted community dominated by the isopod Saduria sabini and the bivalve Yoldiella lenticula, which can successfully survive the increased mineral sedimentation. In the middle basin, it is replaced by the transitional community with Ennucula tenuis and Portlandia arctica being the main dominants. Finally, the outer slope is inhabited by the community typical for the open parts of the Kara Sea. It is dominated by Astarte crenata, Ophiacantha bidentata, and Ophiopleura borealis. The main reason for macrobenthic distribution in the studied region is the content of mineral particles in the water column and bottom layers.
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Original Russian Text © A.I. Chava, A.A. Udalov, A.A. Vedenin, M.I. Simakov, S.A. Shchuka, V.O. Mokievsky, 2017, published in Okeanologiya, 2017, Vol. 57, No. 1, pp. 160–170.
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Chava, A.I., Udalov, A.A., Vedenin, A.A. et al. Benthic fauna of Tsivolki Bay (Novaya Zemlya Archipelago, Kara Sea). Oceanology 57, 144–153 (2017). https://doi.org/10.1134/S0001437017010015
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DOI: https://doi.org/10.1134/S0001437017010015