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16thseastar_010.pdf | 519.46 kB | Adobe PDF | 見る/開く |
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dc.contributor.author | Sawada, Hideki | en |
dc.contributor.author | Yamashita, Yoh | en |
dc.date.accessioned | 2017-07-31T03:05:48Z | - |
dc.date.available | 2017-07-31T03:05:48Z | - |
dc.date.issued | 2017-06 | - |
dc.identifier.uri | http://hdl.handle.net/2433/226613 | - |
dc.description | March 16-17, 2016 | en |
dc.description.abstract | Early life history of the sea cucumber Apostichopus japonicusis important for developing methods forstock management and enhancement. However, information on the ecology of juvenile sea cucumbers in the wild is scarce, partly because of their low density. We investigated their diel change in vertical distribution in an adventitious mesocosm containingjuvenile sea cucumbers in the yard of the Maizuru Fisheries Research Station, Kyoto University.The density of A. japonicusjuveniles in shallow water was higher than in deepwater. The profiles of the water temperature and salinity were relatively uniformthroughoutthe water column, while photon strength was higher in shallow water in daytime. This result shows that juvenileA. japonicussea cucumbers have negative geotaxis despite havingnegative phototaxis. In field observations in Maizuru Bay, there were no juveniles at shallow sites, such asshores, suggesting that other environmental factors | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Kyoto University Design School | en |
dc.subject | echinoderm | en |
dc.subject | geotaxis | en |
dc.subject | phototaxis | en |
dc.title | Vertical distribution of juvenile sea cucumber Apostichopus japonicus in a mesocosm experiment | en |
dc.type | conference paper | - |
dc.type.niitype | Conference Paper | - |
dc.identifier.jtitle | PROCEEDINGS of the Design Symposium on Conservation of Ecosystem Volume 5 (The 16th SEASTAR2000 workshop) | - |
dc.identifier.volume | 5 | - |
dc.identifier.spage | 10 | - |
dc.identifier.epage | 14 | - |
dc.textversion | publisher | - |
dc.sortkey | 03 | - |
dc.address | Field Science Education and Research Center, Kyoto University | en |
dc.address | Field Science Education and Research Center, Kyoto University | en |
dc.identifier.selfDOI | 10.14989/226613 | - |
dcterms.accessRights | open access | - |
出現コレクション: | PROCEEDINGS of the Design Symposium on Conservation of Ecosystem Volume 5 (The 16th SEASTAR2000 workshop) |
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