Fluctuation prediction of the diversity of aquatic plants and Macroalgae in response to environmental changes in mountain lakes
| Project/Area Number |
16K00633
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental and ecological symbiosis
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| Research Institution | University of Yamanashi |
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Principal Investigator |
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| Research Collaborator |
SERISAWA Kazuyo (MATSUYAMA Kazuyo)
NAKAMURA Seiji
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 環境応答 / 水中光量 / 水生植物相 / 水質環境 / 光合成温度特性 / 光合成光特性 / 分布下限水深 / 水平垂直分布 / 水草 / 光合成 / 垂直分布 / 植物相 / 多様性 / 山岳湖沼 / 水平・垂直分布 / フローラ / 生育量 / 湖沼 / 光合成最適温度 / フジマリモ / 淡水藻 / 生物量 / 光環境 / 水質 / 環境変動 / 水圏現象 / 植物 / 生態学 / バイオマス |
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| Outline of Final Research Achievements |
In order to predict possible changes in the diversity of aquatic plant and Macroalgae as a result of environmental changes in mountain lakes, field studies of environment and aquatic plants in Fuji Five Lakes and laboratory experiments of photosynthesis were conducted. The annual change of water environment of Fuji Five Lakes, especially the light environment such as the light intensity in water, and the long-term and short-term fluctuations of aquatic flora were clarified. The changes of species composition, distribution and frequency of aquatic plants with water depth, and the lower growth limit were also clarified. In addition, the photosynthetic characteristics such as the relationship between temperature and the compensation light intensity of multiple species of aquatic plants were clarified. Therefore it visualized that global warming and deterioration of the light environment course an adverse effect on the diversity of aquatic plants growing in mountain lakes.
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| Academic Significance and Societal Importance of the Research Achievements |
水中光量などの環境は水草や大型藻類の生残を規定する要因となるが，それらの環境が明らかにされている湖沼は少ない。また，水生植物は陸上植物に比べて人目に触れる機会が少ないことから，それらの多様性が大きく失われている現状はあまり知られていない。本研究で得られた知見は今後起こり得る環境変化がもたらす水生植物の多様性の変動予測に寄与し，多様性の維持に貢献する。また山岳湖沼における現場調査は技術や多大な労力を要するため，これまであまり行われて来ていないことから，本研究において潜水調査などから明らかにされた現場環境と水生植物の種組成や生育量に関する情報は今後，水生植物の生態学的研究の一助となるであろう。
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Report
(4 results)
Research Products
(43 results)
