Meiofaunal Assemblage Pattern in Krossfjord, Svalbard Archipelago

IF 0.5 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Russian Journal of Marine Biology Pub Date : 2024-01-25 DOI:10.1134/s1063074023060044
M. Jima, P. R. Jayachandran, J. Rojin, P. Anulakshmi, N. K. Aswathy, S. Bijoy Nandan, M. Harikrishnan, K. P. Krishnan
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Abstract

This study elaborates the preliminary information on the meiofaunal assemblage pattern in the Krossfjorden system of the Svalbard Archipelago based on the samples collected during the Summer Phase Indian Arctic Expeditions of 2017 and 2018. The results from the study divulged the meiofaunal assemblage pattern. It is diversified with the presence of ten meiofaunal groups represented by Foraminifera, Tintinnida, Nematoda, Polychaeta, Copepoda, Kinorhyncha, Tanaidacea, Ostracoda, Acarina and Priapulida larvae. Meiofaunal abundance was observed to be low during the year 2018 (5646 ± 874 ind./10 cm2) compared with previous reports from adjacent fjord systems and the samples collected during the 2017 study (8826 ± 1501 ind./10 cm2). The decrease in meiofaunal assemblage in the fjord is associated with changes in environmental constraints and organic matter availability. The diminishing sea ice habitats in the Arctic waters are expected to have pronounced impacts on meiofaunal communities and their appearances in the coming future. In this regard, data gathered during the present study will form a baseline information on meiofaunal communities in the Krossfjorden system for understanding future changes in the benthic habitat and have important implications on predicting the direction of change with regard to meiobenthic productivity.

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斯瓦尔巴群岛克罗斯峡湾的小型底栖生物组合模式
摘要 本研究根据2017年和2018年夏季阶段印度北极考察期间采集的样本,阐述了斯瓦尔巴群岛克罗斯峡湾系统中的小型底栖生物组合模式的初步信息。研究结果揭示了小型底栖生物的组合模式。有孔虫、鳍足目、线虫目、多毛目、桡足目、栉水母目、栉水母科、栉水母属、有尾目、栉水母科和普里普里幼虫代表的十个小型底栖生物类群呈现出多样化的特征。与之前邻近峡湾系统的报告和 2017 年研究期间采集的样本(8826 ± 1501 个/10 平方厘米)相比,2018 年观察到的小型底栖生物丰度较低(5646 ± 874 个/10 平方厘米)。峡湾中小型底栖动物群落的减少与环境限制和有机物供应的变化有关。预计北极水域海冰栖息地的减少将在未来对小型底栖生物群落及其出现产生明显影响。在这方面,本研究收集的数据将构成克罗斯峡湾系统小型底栖生物群落的基线信息,用于了解底栖生物栖息地的未来变化,并对预测小型底栖生物生产力的变化方向具有重要意义。
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来源期刊
Russian Journal of Marine Biology
Russian Journal of Marine Biology 生物-海洋与淡水生物学
CiteScore
1.00
自引率
0.00%
发文量
46
审稿时长
6-12 weeks
期刊介绍: The Russian Journal of Marine Biology was founded in 1975 by Alexey V. Zhirmunsky, member of the Russian Academy of Sciences. The Russian Journal of Marine Biology covers a wide range of research and some applied aspects of marine biology as a synthetic science related to various fields of study on marine biota and environment. It presents fundamental research on biological processes at molecular, cellular, organismal, and populational levels in marine organisms. Consideration is given to marine objects as models in life sciences. The journal also publishes papers dedicated to events in Russian and international marine biological science and the history of biology.
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