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首页> 外文期刊>Russian journal of marine biology >Diet and Some Ecological Features of the Most Widespread Commercial Crab Species in the Northwestern Sea of Japan in Early Spring
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Diet and Some Ecological Features of the Most Widespread Commercial Crab Species in the Northwestern Sea of Japan in Early Spring

机译：早春日本西北海最广泛商品蟹的饮食和某些生态特征

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摘要

Results of the study of feeding habits of the commercial crab species Chionoecetes opilio, Ch.japonicus, Paralithodes platypus, P. camtschaticus, and Erimacrus isenbeckii in early spring 2009 are presented. The composition, distribution, and quantitative characteristics of benthos in the areas of sampling are analyzed. The generalized pattern of distribution of the considered crabs is shown with the maximum and mean densities. These crabs were found to consume at least three to four single portions of food during 10-12 hours of daylight. The lowest feeding intensity was observed in the opilio snow crab in March and April. Cannibalism proved to be typical for all the studied crab species in the spring. It was most developed in the deepwater red snow crab, in whose diet representatives of the same species constituted a one-third share. It was also noted that the diet of the studied crabs included a major proportion of crabs and shrimps, which was unusual for the feeding habits of the same species in other Far Eastern seas.
机译：提出了2009年初春商品蟹种Chionoecetes opilio，Ch.japonicus，Platelithodes platypus，P。camtschaticus和Erimacrus isenbeckii的摄食习性研究结果。分析了采样区域中底栖动物的组成，分布和数量特征。以最大密度和平均密度显示了所考虑螃蟹分布的一般模式。发现这些螃蟹在白天的10至12小时内至少消耗三到四份食物。在三月和四月，在阿片雪蟹中观察到最低的摄食强度。在春季，所有被研究的螃蟹种类都食人相伴。它在深水红雪蟹中最发达，在同一种类的饮食中占三分之一。还应注意的是，所研究的螃蟹的饮食中主要包括螃蟹和虾，这对于其他远东海域相同物种的摄食习性而言是不寻常的。

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