Differences in Megabenthos Communities in the Eastern and Western Parts of the Kara Sea Based on Video Observations

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
A. A. Udalov, I. M. Anisimov, V. O. Muravya, A. V. Lesin, V. Yu. Kuzmin, A. K. Zalota, M. V. Chikina
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Abstract

The first quantitative video survey of the benthic megafauna was carried out on a transect in the eastern part of the Kara Sea from the slope of the Voronin Trough to the upper shelf in the depth range from 1680 to 70 metres. The data were obtained using the TUV “Videomodule” during the 89th cruise of the R/V Akademik Mstislav Keldysh in autumn 2022. It was shown that the megabenthos in this area differs significantly from that of the western part of the sea and Blagopoluchiya Bay (Novaya Zemlya). In the eastern part of the Kara Sea, echinoderms dominated, among which ophiuroids were in the first place, whereas in the western part of the sea and the Blagopoluchiya Bay, the key component of the megafauna was the snow crab Chionoecetes opilio. Single adults of Ch. opilio were recorded for the first time at almost all stations in the eastern part of the sea, but, in contrast to the western area, the snow crab has not yet become dominant here and has not influenced the benthic communities.

Abstract Image

基于视频观测的喀拉海东西部大型底栖生物群落差异
摘要 在喀拉海东部从沃罗宁海槽斜坡到陆架上部水深 1680 米至 70 米的横断面上首次对底栖巨型动物进行了定量视频调查。数据是在 2022 年秋季 Akademik Mstislav Keldysh 号考察船第 89 次航行期间使用 TUV "Videomodule "获得的。结果表明,该地区的大型底栖生物与西部海域和布拉戈波卢基亚湾(新泽姆利亚)的大型底栖生物有很大不同。在喀拉海东部,棘皮动物占主导地位,其中又以眼虫类居首位,而在喀拉海西部和布拉戈波卢基亚湾,巨型底栖生物的主要组成部分是雪蟹 Chionoecetes opilio。在该海域东部的几乎所有站位都首次记录到了雪蟹(Chionoecetes opilio)的单只成体,但与西部地区相比,雪蟹在这里尚未成为优势动物,也未对底栖生物群落产生影响。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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