| 英文摘要 |
Biomass of estuarine larval fishes is an important indicator for predicting fishing resources. Therefore, to understand their species composition and abundance is essential for fishery management. The recruitment mechanism of the larval fishes from spawning ground to estuaries is not clear for most species. This is a continuous project, and will still target on the recruitment mechanism of the progy which is a dominant species in the estuary of Taiwan. We will analyse the otolith trace element composition to discuss the metapopulation connectivity and their dispersal pattern. The elemental composition of estuarine water will be also analyzed to understand the correlation between otolith and water chemistry. Furthermore, we will use microsatellite DNA to assay the difference in population genetic structure of the larval progy among different estuaries. The result of otolith elemental composition and microsatellite DNA of larval progy will offer important references for fishery resources assessment and habitat conservation and management. |