| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2009: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2008: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
|
|---|
| Research Abstract |
The predicted changes in spawning areas due to global warming and the resulting rise in sea surface temperatures are investigated in this study. Rearing experiments of eggs and larvae to determine optimum temperatures, biologging measurements to compare behavioral physiology of Pacific bluefin tuna(Thunnus orientalis) to that of yellowfin tuna(T. albacares), and a simulation using an ocean model under a climate warming scenario were conducted. The results were as follows :(1) The optimum temperature for eggs and larvae were 26(2) Bluefin tuna would lack the ability to radiate excess body heat thus global warming could affect their distribution in the future.(3) The predicted survival rates of larvae arriving in Japanese coastal waters in 2100 would decline to 36% of present recruitment levels.
|
