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Title: 陸奥湾におけるマクロベントスの時空間分布
Other Titles: Temporal and Spacial Distributions of Macrobenthos in Mutsu Bay
Authors: 高橋, 豊美1 Browse this author →KAKEN DB
前田, 辰昭2 Browse this author →KAKEN DB
中谷, 敏邦3 Browse this author →KAKEN DB
柳川, 延之4 Browse this author
Authors(alt): Takahashi, Toyomi1
Maeda, Tatsuaki2
Nakatani, Toshikuni3
Yanagawa, Nobuyuki4
Issue Date: 1986
Publisher: 日本水産学会
Journal Title: 日本水産学会誌
Journal Title(alt): Bulletin of the Japanese Society of Scientific Fisheries
Volume: 52
Issue: 8
Start Page: 1339
End Page: 1349
Publisher DOI: 10.2331/suisan.52.1339
Abstract: In order to elucidate the conditions of food environments for righteye flounders Limanda herzensteini and L. yokohamae in Mutsu Bay, Aomori Prefecture, the distributions of macrobenthos were investigated by analyzing grab samples obtained at approximately 300 stations chiefly from March 1980 to February 1983. Faunal composition in the bay was correlated with the mud contents in the bottom sediments. In the extensive mud bottom in offshore area polychaete annelids predominated, representing 82.8% of the total number of macrofauna. Most of the dominant species, Scalibregma inflatum, Paraprionospio pinnata, and Maldane sarsi, were chiefly abundant in East Bay. So macrofaunal biomass and density in West Bay were consistently lower than those in East Bay. The densities of S. inflatum and Ampharete sp. increased remarkably in spring and decreased in autumn and winter, while no seasonal periodicity was found in fluctuations in den-cities of Lumbrineridae and M. sarsi. There is a general tendency that the macrofaunal biomass in offshore area attains peak in summer and lowest in winter. But such a periodicity was not found in East Bay since the autumn of 1980 because of remarkable increase in density of M. sarsi. Results of cluster analysis showed that the community structure of macrofauna in offshore area varied largely with fluctuations in abundance of dominant polychaetes by seasons and years.
Rights: © 1986 公益社団法人日本水産学会
© 1986 The Japanese Society of Fisheries Science
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高橋 豊美

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