Trophic niches of benthic crustaceans in the Pechora Sea suggest that the invasive snow crab Chionoecetes opilio could be an important competitor

Trophic niches of benthic crustaceans in the Pechora Sea suggest that the invasive snow crab Chionoecetes opilio could be an important competitor
复制标题

伯朝拉海底栖甲壳类动物的营养生态位表明,入侵的雪蟹 Chionoecetes opilio 可能是一个重要的竞争对手

DOI:
10.1007/s00300-020-02775-3
复制
发表时间:
2020
期刊:
影响因子:
1.7
通讯作者:
Gebruk A
Gebruk A
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Gebruk A

文献摘要

参考文献

被引文献

相似文献

随着气候变化,人类活动的扩大,入侵物种的引入和水污染对俄罗斯北极地区伯朝拉海独特的海洋生态系统构成了多重威胁。迫切需要关于生物多样性和应对环境变化的基线数据。底栖十足类甲壳动物在全球分布,并在渔业中发挥重要作用,但其在食物网中的作用了解较少。本研究采用胃含物分析和稳定同位素(δ 13 C和δ 15 N)分析相结合的方法,对伯朝拉海入侵的雪蟹(Chionoecapillopilio)和两种本地十足类(蜘蛛蟹Hyasaraneus和寄居蟹Paguruspubescens)的营养生态位进行了研究。本文分析了75只十足类(C. optagus = 23;H. return 9;结果表明,该海域共捕获到20种猎物,其中最常见的猎物是双壳类软体动物(纤毛类、纤壳类、钙质类)、多毛类、甲壳类和植物残体。稳定同位素特征的贝叶斯椭圆分析(n= 40)表明,C. opilio显示一个重叠的营养生态位与两个本地十足类,提供了直接的证据,入侵者可能竞争的食物资源与bothH。阿兰纽斯和P.毛因此,这种入侵物种的存在可能对营养相互作用、底栖生态系统功能和生物多样性产生重要影响。微塑料也被发现是这个生态系统的一个可能的压力源,因为28%的胃含有消化的微塑料等物品。现在需要对底栖生态系统结构和功能进行长期研究,以更充分地了解这种新的竞争对手可能在多大程度上改变伯朝拉海未来的生物多样性以及消化塑料的额外压力。
Expanding human activities alongside climate change, the introduction of invasive species and water contamination pose multiple threats to the unique marine ecosystems of the Pechora Sea in the Russian Arctic. Baseline data on biodiversity and responses to environmental change are urgently needed. Benthic decapod crustaceans are globally distributed and play an important role in fisheries, yet their roles in food webs are less understood. In this study, we used an integrated approach combining stomach content analysis and stable isotope analyses (δ13C and δ15N) to examine the trophic niches of three decapod species in the Pechora Sea including the invasive snow crabChionoecetes opilioand two species of native decapods, the spider crabHyas araneusand the hermit crabPagurus pubescens. Stomach contents of 75 decapods were analysed (C. opilion= 23;H. araneusn= 9;P. pubescensn= 43), and 20 categories of prey items were identified with the most frequently occurring prey items being bivalve molluscs (Ciliatocardium ciliatum,Ennucula tenuis,Macoma calcarea),polychaetes, crustaceans and plant debris. Bayesian ellipse analyses of stable isotope signatures (n= 40) revealed thatC. opiliodisplays an overlapping trophic niche with the two native decapods, providing direct evidence that the invader likely competes for food resources with bothH. araneusandP. pubescens. As such, the presence of this invasive species could hold important consequences for trophic interactions, benthic ecosystem functioning and biodiversity. Microplastics were also found to be a likely stressor on this ecosystem, as 28% of all stomachs contained digested microplastics among other items. Long-term studies of benthic ecosystem structure and functioning are now needed to more fully understand the extent to which this new competitor may alter the future biodiversity of the Pechora Sea alongside the additional stressor of digested plastics.
巴伦支海雪蟹的饮食及其分布地区的大型底栖动物群落
DOI: --
发表时间: 2018
期刊:
影响因子: --
作者:
D. Zakharov;I. Manushin;N. Strelkova;V. Pavlov;T. Nosova
通讯作者: T. Nosova
DOI: --
发表时间: 2008
期刊: Polar Biology
影响因子: 1.7
作者:
A. A. Sukhotin;A. A. Sukhotin;Y. Krasnov;K. Galaktionov
通讯作者: K. Galaktionov
纽芬兰东北部陆架雪蟹(Chionoecetes opilio、Decapoda、Brachyura)的胃内容物
DOI: --
发表时间: 2003
期刊:
影响因子: --
作者:
H. J. Squires;E. Dawe
通讯作者: E. Dawe
DOI: 10.1016/j.jmarsys.2014.11.013
发表时间: 2015-04
影响因子: 2.8
作者:
Katarzyna Zmudczyńska-Skarbek;P. Bałazy;P. Kukliński
通讯作者: Katarzyna Zmudczyńska-Skarbek;P. Bałazy;P. Kukliński
同位素新闻
DOI: --
发表时间: 2015
期刊:
影响因子: --
作者:
二瓶直登;田野井慶太朗;中西友子;二瓶直登;二瓶直登;二瓶直登;二瓶直登
通讯作者: 二瓶直登