| Project/Area Number |
21310013
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Environmental dynamic analysis
|
|---|
| Research Institution | Nagasaki University |
|---|
Principal Investigator |
ISHIMATSU Atsushi 長崎大学, 大学院・水産・環境科学総合研究科, 教授 (00184565)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KURIHARA Haruko 琉球大学, 亜熱帯島嶼科学超域研究金推進機構, 特任助教 (40397568)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2009: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
|
|---|
| Keywords | 生物海洋 / 海洋酸性化 / 二酸化炭素 / 魚類 / 成長 / 初期発生 / 生残 |
|---|
| Research Abstract |
Two species of clownfish (Amphiprion clarkii and A. ocellaris) and a minnow (Oryzias javanicus) was used in this project to investigate effects of elevated CO2 and temperature rise on early development (A. clarkii and A. ocellaris) and effects of long-term exposure to elevated CO_2 on growth and reproduction (O. javanicus). Embryos of both clownfish species developed normally under 1000 ppm CO_2 conditions. Rearing at elevated temperature (31, 32℃ vs 29℃) resulted in significantly lower survival and enhanced deformity in A. clarkii, although these negative effects were not observed in A. ocellaris. Long-term exposure of O. javanicus to 1000 ppm CO_2 did not exert any significant negative impacts on all parameters studied (survival, growth, oxygen uptake rate, acid excretion rate, fecundity, and the size of just hatched larvae).
|
