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ID 28910
本文ファイル
別タイトル
消化管蛍光法による浮遊性カイアシCalauns sinicusの瀬戸内海における摂餌生態
著者
Yamamoto, Fumi
キーワード
Calanus sinicus
copepod
feeding
gut pigment
Inland Sea of Japan
NDC
動物学
抄録(英)
We investigated in situ feeding of adult females of the planktonic copepod Calanus sinicus in the Inland Sea of Japan by the gut fluorescence method. Unlike many empirical observations of food-dependent feeding in copepods, no correlation was found between in situ gut pigment of C. sinicus and ambient chlorophyll a concentration. This might partly be due to the large (up to 13-fold) variability in individual gut content, which persisted thrdughout the day. The C. sinicus population showed a diel feeding periodicity; mean gut pigment was significantly higher at night than during the day. Gut evacuation rate increased linearly with increasing temperature. Daily pigment ingestion rates were estimated at 3 stations where gut pigment data over 24 h were available. They varied from 209 to 842 ng pigment indiv.^<-1> d^<-1>. Assuming that the population biomass of C. sinicus at these stations was 32 mg C m^<-3> (the average biomass in Osaka Bay), the population would have consumed 13 to 85% of the phytoplankton standing crop per day.
掲載誌名
日本プランクトン学会報
42巻
2号
開始ページ
123
終了ページ
139
出版年月日
1995-12-25
出版者
日本プランクトン学会
ISSN
0387-8961
NCID
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 1995 The Plankton Society of Japan
部局名
生物圏科学研究科