| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
This study found that (1) fish abundance and species richness were lower at a site highly impacted by sediment (red soil) compared to a low impacted site, (2) significant olfaction-based avoidance behavior in settlement-stage larval fish to red-soil pollution, (3) larvae failed to distinguish coral habitat olfactory cues in the presence of red soil, (4) prolonged exposure to red soil produced altered olfactory cue responses, and (5) pH of seawater decreased with increasing concentrations of red soil. Overall, the results show that sediment pollution may have more negative effects on the ability of larval fish to successfully locate suitable habitat than previously thought.
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