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首页> 外文期刊>ICES Journal of Marine Science >Effects of scallop dredging on macrobenthic communities in west Iceland
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Effects of scallop dredging on macrobenthic communities in west Iceland

机译：扇贝疏on对冰岛西部大型底栖动物群落的影响

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摘要

Effects of scallop dredging on benthic communities in Breidafjordur, west Iceland, were investigated by analysing bycatch data from scallop stock assessment surveys and effort data from the commercial scallop fishery. Bycatch constituted 28% of the total catch, with eight benthic macrofaunal taxa alone making up nearly 98% of the bycatch. Modiolus modiolus and Cucumaria frondosa dominated in terms of abundance and biomass in most of the study area regardless of intensity of fishing effort, although both have been identified as sensitive to fishing in other studies. The macrofaunal benthic community in Breidafjordur consisted mostly of hard-shelled molluscs, holothurians, crabs, and starfish. Emerging epifauna was absent in the samples taken since 1993. These results suggest that our study was carried out within an already altered community that would have suffered the greatest impact during the early years of the scallop fishery. However, the available data are not enough to endorse this assumption with complete certainty.
机译：通过分析扇贝种群评估调查的兼捕数据和商业扇贝渔业的工作量数据，研究了扇贝疏ed对冰岛西部布雷达菲约杜尔底栖生物的影响。兼捕占总捕捞量的28％，仅8个底栖大型动物类群就占了近98％。在大部分研究区域中，无论捕捞努力强度如何，鼠和欧洲黄瓜均以丰度和生物量为主导，尽管在其他研究中均已将它们视为对捕捞敏感。 Breidafjordur的大型动物底栖生物群落主要由硬壳软体动物，全人类，蟹和海星组成。自1993年以来所采集的样本中没有新兴的动物群落。这些结果表明，我们的研究是在一个已经改变的群落中进行的，该群落在扇贝渔业的早期遭受的影响最大。但是，可用数据不足以完全确定地认可这一假设。

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