女川湾及び仙台湾における磯の空間的構造と磯魚群集の種多様性, 垂直分布及び現存量

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概要

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• Species composition, spatial structure and biomass of reef fish communities, and the spatial structures of reefs, were studied by diving observations at six stations in Onagawa Bay and Sendai Bay, Miyagi Prefecture. From Simpson's index of diversity of reef structure, these stations were divided into two groups : highly structured reefs (2) and less structured reefs (4). Reef fish communities at the stations consisted of six to 13 species, and the number of fish species corresponded to the diversity of the habitat structure. Shallow parts of the reefs were occupied by a greater number of small fish, and bottom parts by a smaller number of large fish. Among the stations, the number of fish differed by up to 2.2-fold and the biomass index by up to 7.5-fold. Fish biomass was correlated with the cross-sectional area of reefs, which differed by up to 5-fold among the stations.

• 日本生態学会の論文
• 1997-04-25

著者

• 金本 自由生

  愛媛大学理学部附属臨海実験所

関連論文

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