2010-10-062024-05-13https://scholars.lib.ntu.edu.tw/handle/123456789/654003摘要：中華白海豚(Sousa chinensis)主要棲息於西南太平洋、印度洋地區, 侷限於水深小於20m內之沿岸淺水水域, 目前已知的最大族群位於珠江口水域, 台灣族群則含有約85頭個體, 棲息於西岸苖栗龍鳳港至台南將軍之間沿海。在IUCN的紅皮書中, 中華白海豚被列為「NT(near threatened)」等級, 而台灣的族群則由於族群量低及潛在的人為威脅, 被列為「CR(critical endangered)」等級。 儘管目前對於台灣族群的族群量、棲地特徵、分佈範圍已經有所了解, 對於與鄰近族群間的基因交流及親緣關係, 遺傳多樣性, 死亡率(存活率)、生殖率、年齡及性比結構、族群年增率,族群遺傳, 族群存續力分析等研究, 仍未曾實施, 這些研究不僅只是做為生物學研究之基礎資料, 更為制訂中華白海豚相關的保育政策時所必需的基礎資訊。 本研究將針對上述目前尚未實施, 但卻為保育工作所須之基線資料, 利用活體皮膚取樣法進行研究, 研究的結果將更進一步與鄰近族群(廈門、珠江口水域)進行比較。本研究不僅可以進一步增加對台灣的中華白海豚的了解, 同時將更進一步擴增西太平洋中華白海豚的基礎生物學資料, 對於協助擬定此一區域中華白海豚之保育政策, 將可提出詳細且量化的參考基礎。 <br> Abstract: The humpback dolphin (Sousa chinensis) lives around the Indian and south-western Pacific Oceans, primarily restricted to coast areas that are shallower than 20m in depth. Among the known populations, the one living in Pearl River Estuary is the larges one. The size of the Taiwan population approximates 85 dolphins. Current status of humpback dolphin on the Redlist of IUCN is “Near Threatened”, while the Taiwan population is the only one listed in the “Critical Endangered”. Despite the abundance/size, habitat characteristics and distribution of the Taiwan population has been known, knowledge regarding cross-regional communication, phylogeny, genetic diversity, stage-specific mortality/survival rate, annual reproductive rate, rate of increase, trophic level, and population viability are remaining deficiency, which functions as the baseline information for making sound conservation measures. This study, on the basis of proceeding works, will further explores above-mentioned unknown but highly needed baseline information, as well as continuously monitors current status of Taiwan population. The results will be discussed in a cross-regional consideration, comparing to neighboring populations like the Xiamen and the Pearl River Estuary ones. This study does not only reinforce current knowledge of population biology of the Taiwan population, but also enriches the baseline information of humpback dolphin around western Pacific Oceans, helping to provide quantified and qualified guideline for conservation.中華白海豚族群存續力保育Sousa chinensispopulation viabilityconservation