Biodiversity and distribution of brittle stars (Echinodermata, Ophiuroidea) in the Kara Sea-Reference-Cited by-同舟云学术

Biodiversity and distribution of brittle stars (Echinodermata, Ophiuroidea) in the Kara Sea

Published:2021-06-25 Issue:2 Volume:325 Page:235-247
ISSN:0206-0477
Container-title:Proceedings of the Zoological Institute RAS
language:ru
Short-container-title:Proceedings ZIN

Author:

Stratanenko E.A.¹,Strelkova N.A.²,Smirnov I.S.³

Affiliation:

1. Zoological Institute of the Russian Academy of Sciences, Universitetskaya Emb. 1, 199034 Saint Petersburg, Russia; Saint Petersburg branch of the FSBSI VNIRO (GosNIORKH named after L.S. Berg) Makarova Emb. 26, 199053 Saint Petersburg, Russia

2. Polar branch of the FSBSI VNIRO (PINRO named after N.M. Knipovich), Akademika Knipovicha 6, 199034 Murmansk, Russia

3. Zoological Institute of the Russian Academy of Sciences, Universitetskaya Emb. 1, 199034 Saint Petersburg, Russia

Abstract

Brittle stars are one of the leading components of the benthic communities in the Kara Sea. The fauna of the Kara Sea brittle stars is represented by 12 species. Ophiocten sericeum (Forbes, 1852), Ophiopleura borealis Danielssen et Koren, 1877, Ophiacantha bidentata (Bruzelius, 1805), and Ophioscolex glacialis Müller et Troschel, 1842 are most widespread within the sea. Based on the available data, distribution maps for each species were constructed. A comparative analysis of the Barents Sea, the Kara Sea and the Laptev Sea fauna was carried out. It was found that during evolution the fauna of Kara Sea brittle stars at the genus level was under balanced influence of autochthonous and allochthons processes; at the species level the autochthonous processes were predominant. The obtained value of the taxonomic uniqueness index characterizes the fauna of the Kara Sea brittle stars as quite isolated at all taxonomic levels. Six biogeographic groups were distinguished in the biogeographic structure of the fauna of the sea, of which the boreal-Arctic and high-boreal-Arctic forms are the most represented. The use of the Jaccard species similarity coefficients and Pearson correlation showed that the greatest similarity at the species level is observed between the Kara and the Laptev seas.

Publisher

Zoological Institute of the Russian Academy of Sciences

Subject

Insect Science,Animal Science and Zoology,Aquatic Science,Ecology, Evolution, Behavior and Systematics

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