Tidal variability of biochemical composition of spm and feeding environment of manila clam, Ruditapes Philippinarum in Banzu Intertidal Sand Flat, Japan

Masashi Kodama, Satoshi Watanabe, Satoshi Katayama, Mitsuharu Toba, Kaoru Nakata

研究成果: Conference contribution

抄録

Variability during the tidal cycle of the biochemical composition and phytopigment content of suspended particulate matter (SPM) in the bottom water were investigated in the Banzu Intertidal Sand Flat, Tokyo Bay, Japan in relation to the feeding environment and diet of Manila clam, Ruditapes phillippinarum. Biochemical composition of SPM in the bottom water showed large tidal variations, such as the ratio of phytopigment content to SPM (Phy/SPM ratio) and particulate organic carbon (Phy/POC ratio) were both higher during high tide periods compared to low tide periods. Therefore, it was considered that high tide periods form a suitable food environment for the clam. The results also indicated that phytoplankton which is transported from offshore at high tide is an important food source for the clam. In addition, results of stable isotope analyses indicated that R. phillippinarum selectively intakes SPM during high tide periods and assimilate selected components among the SPM.

本文言語English
ホスト出版物のタイトルProceedings of the 5th International Conference on Asian and Pacific Coasts, APAC 2009
出版社World Scientific Publishing Co. Pte Ltd
ページ272-278
ページ数7
ISBN(印刷版)9814287962, 9789814287968
出版ステータスPublished - 2010
外部発表はい
イベント5th International Conference on Asian and Pacific Coasts, APAC 2009 - Singapore, Singapore
継続期間: 2009 10月 132009 10月 16

出版物シリーズ

名前Proceedings of the 5th International Conference on Asian and Pacific Coasts, APAC 2009
1

Other

Other5th International Conference on Asian and Pacific Coasts, APAC 2009
国/地域Singapore
CitySingapore
Period09/10/1309/10/16

ASJC Scopus subject areas

  • 海洋工学

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