The Vertical Distribution of Pearl Oyster <i>Pinctada fucata martensii</i> Spat in Uchiumi Bay
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- Tomaru Yuji
- Department of Environmental Conservation Sciences. The United Graduate School of Agricultural Sciences, Ehime University
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- Kawabata Zen'ichiro
- Department of Environmental Conservation, Faculty of Agriculture, Ehime University
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- Nakagawa Ken'ichi
- Uchiumi Institute of Ocean and Fishery Science
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- Nakano Shin-ichi
- Department of Environmental Conservation, Faculty of Agriculture, Ehime University
Bibliographic Information
- Other Title
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- The Vertical Distribution of Pearl Oyster Pinctada fucata martensii Spat in Uchiumi Bay
- Vertical Distribution of Pearl Oyster Pinctada fucata martensii Spat in Uchiumi Bay
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Abstract
We conducted an experiment to see vertical distribution of the pearl oyster Pinctada fucata martensii spat, in Uchiumi Bay, east side of Bungo Channel, Japan. Since there is an intrusion of Kuroshio Front (Kyucho), the water quality of the bay is strongly affected by the Kyucho. Collectors of spat were placed from the 1 to 10m at 1m intervals, and the 15, 20 and 30m depths from June 18 to August 22, 1997. The spats were abundantly distributed from the 1 to 10m depth, and most abundant at 6m depth. Few spats were found from the 15 to 30m depth. Although some mechanisms such as water temperature and salinity have been reported in the literature as important environmental factors which determine vertical distribution of bivalve spat in experimental systems, we could not find significant relationships between vertical abundance of P. fucata martensii spat and vertical profiles of some environmental variables. The relationships between the vertical distribution of the spat and the environmental factors in natural environments are thus complicated. The result in the present study is an important information on the vertical distribution pattern of P. fucata martensii spat in natural environmets.
Journal
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- Fisheries science
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Fisheries science 65 (3), 358-361, 1999
The Japanese Society of Fisheries Science
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Details 詳細情報について
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- CRID
- 1390001204428844032
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- NII Article ID
- 130003903365
- 10004878782
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- NII Book ID
- AA10993718
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- NDL BIB ID
- 4767285
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- ISSN
- 09199268
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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