In situ feeding of the planktonic copepod Calanus sinicus in the Inland Sea of Japan, examined by the gut fluorescence method
日本プランクトン学会報 42 巻 2 号
123-139 頁
1995-12-25 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
In situ feeding of the planktonic copepod Calanus sinicus in the Inland Sea of Japan, examined by the gut fluorescence method
|
| タイトル ( jpn ) |
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
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| 作成者 |
Yamamoto Fumi
|
| 収録物名 |
日本プランクトン学会報
|
| 巻 | 42 |
| 号 | 2 |
| 開始ページ | 123 |
| 終了ページ | 139 |
| 抄録 |
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.
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| 著者キーワード |
Calanus sinicus
copepod
feeding
gut pigment
Inland Sea of Japan
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| NDC分類 |
動物学 [ 480 ]
|
| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
日本プランクトン学会
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| 発行日 | 1995-12-25 |
| 権利情報 |
Copyright (c) 1995 The Plankton Society of Japan
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0387-8961
[NCID] AN00197015
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