| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Research Abstract |
We examined potential ability of parental care in female damselfishes, in which males alone perform egg-guarding and egg-care behaviors in nature. We removed males from breeding pairs just after spawning. Of 3 species being studied genera Dascyllus and Chrysiptera, two showed egg-care behaviors to spawned eggs in females. The behavioral components of the females' egg care were slightly different from those of males. By real-time PCR analyses, we confirmed that females performing egg care tended to have higher hormone levels in pituitary than normal females.
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