| Project/Area Number |
17580171
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
General fisheries
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
KAERIYAMA Masahide Hokkaido University, Faculty of Fisheries Sciences, Professor, 大学院水産科学研究院, 教授 (80305937)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
ABE Shuichi Hokkaido University, Facuity of Fisheries Sciences, Professor, 大学院水産科学研究院, 教授 (80125278)
URAWA Shigehiko National Salmon Resources Center, Chief Scientist., さけます研究部, 研究室長 (60425460)
|
|---|
| Project Period (FY) |
2005 – 2006
|
| Project Status |
Completed (Fiscal Year 2006)
|
| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2005: ¥2,100,000 (Direct Cost: ¥2,100,000)
|
|---|
| Keywords | Ecosystem service / chum salmon / riparian ecosystem / adaptive management / keystone species / material cycle / sustainable salmon conservation / biodiversiy / 河川生態系 / 野生魚 / 孵化場魚 |
|---|
| Research Abstract |
The conSequences of nutrient loss and attendant low productivity on biodiversity and productivity in the ecosystem has recently invoked the interest of researchers, as result of loss of wild anadromous fish by acceleration of urbanization and deterioration of natural riparian ecosystem such as dam construction, habitat destruction, and artificial hatchery program. In Japan, chum salmon (Oncorhvnchus keta) have been mass-produced by hatchery program, while numerous wild Pacific salmon have been almost extinguished by a combination of the urbanization and the deterioration of riparian ecosystem. Anadromous fish are keystone specieS for sustaining production and biodi ersity in the riparian-ecosystem. For sustainable conservation management of riparian ecosystem, the rehabilitations of wild salmon populatiOn, system of material cycle, and natural rivers are critical important the rivers in Japan..
|
