2014 Fiscal Year Final Research Report
Mortality in pelagic egg stage of black sea bream, Acanthopagrus schlegelii in Hiroshima Bay
| Project/Area Number |
24658170
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
General fisheries
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| Research Institution | Hiroshima University |
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Principal Investigator |
UMINO Tetsuya 広島大学, 生物圏科学研究科, 准教授 (70232890)
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| Co-Investigator(Renkei-kenkyūsha) |
SHOUJI Jun 広島大学, 大学院生物圏科学研究科, 准教授 (10397565)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 浮遊卵 / 減耗 / クロダイ |
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| Outline of Final Research Achievements |
The abundance of fish stock highly depends on the survival of egg and larvae during planktonic stage. The objective of this program is to estimate for mortality rate of pelagic egg stage that is most vulnerable to environmental perturbations. A case study using black sea bream, Acanthopagrus schlegelii in Hiroshima Bay revealed that survival rate during egg stage was estimate at 0.50-0.9/day based on frequency on each egg stage at a main spawning ground in the Bay.
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| Free Research Field |
水圏生物学
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