| Project/Area Number |
20870036
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| Research Category |
Grant-in-Aid for Young Scientists (Start-up)
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| Allocation Type | Single-year Grants |
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| Research Field |
Ecology/Environment
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| Research Institution | Kinki University |
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Principal Investigator |
HATA Hiroki Kinki University, 農学部, 講師 (00510512)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥3,302,000 (Direct Cost: ¥2,540,000、Indirect Cost: ¥762,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,742,000 (Direct Cost: ¥1,340,000、Indirect Cost: ¥402,000)
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| Keywords | 生態学 / 栽培共生 / サンゴ礁 / 藻類-藻食者関係 / なわばり性スズメダイ / タンガニイカ湖 / なわばり性藻食魚 / 種特異的関係 |
|---|
| Research Abstract |
Herbivorous damselfishes maintain algal farms inside their territories. In Ryukyu Islands, dusky farmer fish, Stegastes nigricans, weeds unpalatable algae and enhances growth of one species of algae of genus Polysiphonia that is digestible for the fish. In the distribution area of this fish, the species-specificity between S.nigricans and Polysiphonia alga is highly maintained, although the fish use other indigenous Polysiphonia species in some localities. In this way, species-specificity between primary producer (algae) and its consumer (herbivorous fish) is revealed. This species-specificity may be universal and play an essential role in species diversity in aquatic ecosystems as is known in terrestrial ecosystems.
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