STUDY ON THE QUANTITY OF NATURAL RESOURCES RECOVERY PLAN OF THE SHORT-NECK CLAM BY THE SEVERE ENVIRONMENT EVASION OF THE SUMMER USING The CIRCULATION-TYPE LAND BREEDING DEVICE
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- OSHIMA Yoshinori
- (株)大林組 技術本部 未来技術創造部
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- ISHIGAKI Mamoru
- 広島工業大学 工学部環境土木工学科
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- KANAI Takahiro
- (株)大林組 技術研究所自然環境技術研究部
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- FUNAKOSHI Kotaro
- 広島工業大学 工学部環境土木工学科
Bibliographic Information
- Other Title
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- 循環式陸上飼育装置を用いた夏季の過酷環境回避によるアサリの資源量回復策の検証
Abstract
<p> We bred juvenile short-neck clams, Ruditapes philippinarum, which collected in June at the tideland of the lower Hiroshima Yahata River, in land breeding device and discharging them again in autumn in order to avoid the summer when the death rate was high because of the large-scale flood and high temperature. We studied to clarify the land breeding condition that had high survival rate of juvenile clams at the same time. The juvenile clams could be bred to have high survival rate by keeping water temperature 15℃, with little difference of growth rate compared to 18℃. In addition, growth rate was improved by a long time feeding of 12 hours. The clams which discharged in the tideland again in October seemed to survive 40-50% by next May, and it was suggested that the clams could contribute to the reproduction of resources.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 78 (2), I_685-I_690, 2022
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390856738296735744
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- ISSN
- 21854688
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed