Food Consumption and Absorption Efficiency in the Sea Cucumber Apostichopus japonicus
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- Kaneko Kenji
- Marine Biological Research Institute of Japan, Co. Ltd
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- Imao Kazumasa
- Marine Biological Research Institute of Japan, Co. Ltd
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- Yoneda Yashihiro
- Kansai International Airport, Co. Ltd
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- Kitade Hiroshi
- Kansai Airport Research Institute
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- Sakagami Yuko
- Kansai International Airport, Co. Ltd
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- Sakamoto Wataru
- Fisheries Laboratory Kinki University
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Abstract
Abstract: The food consumption rate and absorption efficiency for different foods of the sea cucumber, Apostichopus japonicus Selenka, were examined in laboratory experiments. Four types of food were provided:‘ sediment’, ‘ sediment and suspended particles’, ‘ sediment and seaweed’ and‘ seaweed’. The consumption rate did not vary between seasons, with the exception of summer, when A. japonicus did not feed at all. However, there was a variation in consumption rate among different food types; daily consumption rate per dry body-weight varied from 0.61to 1.50g/g-body-weight for sediment-based foods(‘ sediment’ and‘ sediment and suspended particles’);and from 0.10 to 0.30g/g-body-weight for seaweed-based foods(‘ sediment and seaweed’ and‘ seaweed’). The consumption rate tended to decrease with increasing total organic carbon(TOC), total nitrogen(TN), and total phosphorus(TP)content in foods. The absorption efficiency(AE)varied precisely among food types. In contrast, the AE varied between seasons only in sediment-based foods. The AE for dry-weight, TOC, TN and TP varied from-3.6 to 56.1%, 18.3 to 51.8%, 16.5 to 56.2%and5.6 to 68.4%, respectively, and tended to rise with increasing TOC, TN and TP content in the food.
Journal
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- BENTHOS RESEARCH
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BENTHOS RESEARCH 59 (2), 45-52, 2004
JAPANESE ASSOCIATION OF BENTHOLOGY
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Details 詳細情報について
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- CRID
- 1390282680457876864
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- NII Article ID
- 130004997576
- 10016213466
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- NII Book ID
- AN10565057
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- ISSN
- 18838901
- 02894548
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- NDL BIB ID
- 7258205
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed