2010 Fiscal Year Final Research Report
Contribution of methane to benthic food web in a shallow lake
| Project/Area Number |
20570014
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Ecology/Environment
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
SHIKANO Shuichi 東北大学, 東北アジア研究センター, 准教授 (70154185)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
KIKUCHI Eisuke 東北大学, 東北アジア研究センター, 名誉教授 (00004482)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 湖沼 / 安定同位体比 / メタン / ユスリカ / メタン酸化細菌 / 脂肪酸分析 |
|---|
| Research Abstract |
In a shallow lake, the larval chironomids showed dramatically low values of carbon stable isotope ratios, which indicate the marker for dietary components. Since carbon stable isotope ratios were decreased while methane concentrations at the depth of larval chironomids burrow were high, some larvae were considered to assimilate carbon derived from biogenic methane by feeding on methane oxidizing bacteria. The results of fatty acid composition, which is another dietary marker, indicated bacteria are important food source for the larval chironomids
|
