2011-01-012024-05-14https://scholars.lib.ntu.edu.tw/handle/123456789/656990摘要：為提供更深入的中華白海豚棲地生態系及族群動態，以提供策劃海洋保護區之細部區域劃分以及相關管制規範的基礎資料，本計畫將在中華白海豚分布熱區進行海上調查其族群生態現況，探討空間分布、族群結構以及季節與年間變化趨勢，並放置水下聲學A-tag儀器監測海豚活動模式，分析在日夜、潮汐、季節下的活動變異，同時彙整相關國際文獻以規劃台灣未來海洋保護區的即時水下聲學監測系統。本計畫將以三大部分進行:(一)中華白海豚熱區海域的目視監測-將進行30趟的海上調查，每次至少四人進行觀察；紀錄目擊海豚的影像、隻數、行為以及其相關環境因子資料。以地理資訊系統建立海豚追蹤路徑並分析環境因子差異，並由數位照片做個體辨識以建立身分檔案。(二)利用水下聲音資料記錄器(A-tag)監測其季節活動-將在水深3—10公尺海床上進行每季至少四天次的錄音監測，利用Igor Pro 5.01紀錄到的海豚回聲定位聲音訊號分析被偵測海豚隻數，並就日夜、潮汐與季節三項因子做比較分析。(三)鯨豚海洋保護區之即時水下聲學監測系統規劃-利用海洋生物(族群數量、活動範圍、覓食與生殖行為)以及人為活動(岸邊施工、海岸工業運作、船舶輪機)產生音響所提供之「生態指標」與「噪音指標」提供保護區的生態資訊以及人為噪音對海豚的衝擊程度，並建立水下噪音的監測儀器以及標準程序，確立對監測目標所需的監測儀器數量、合適設置法。本計畫預期將可在中華白海豚的族群數量、空間分佈、棲地利用，以及族群動態趨勢上提供更深入的研究資料，並將提出未來海洋保護區之建立即時監測系統規劃建議，可供保育政策研擬及管理策略之參考。<br> Abstract: To enlarge our knowledge of the habitat ecology and population dynamics of this small population and also provide fined basic information for the design and management of the marine protected area in the future. This project is going to lunch boat surveys in hot spots to understand their temporal variation on distribution and group structure, to monitor their movement patterns in diel, tidal and seasonal scale by acoustic data logger (A-tag), also to design an immediate underwater acoustic monitoring system in the marine protected area by reviewing literatures. There will be three parts of this project: (A) Observation of Indo-Pacific humpback dolphins in hot spots, 30 boat surveys will be lunched with at least four observers in each survey. The image, group size, behavior state and environmental factors will be recorded once a group of dolphins is encountered. The Geographic Information System (GIS) will be used to analysis the track of dolphins and the habitat criteria; digital images will be used for photo-identification (photo-ID). (B) Monitoring the seasonal movement of dolphins by A-tag, the sound recording will be preceded at least four days in each season. The echolocation signals of dolphins recorded by Igor Pro 5.01 will be used to analyze the number of animals, the diel, tidal and seasonal differences will be analyzed as well. (C) A design of an immediate underwater acoustic monitoring system in the marine protected area, to provide the ecological information, the impact level of anthropogenic noise and to set up the monitoring devices and standard procedure of underwater noise by using the “ecological index” and “index of noise”. This project will provide scientific data on the abundance, distribution, habitat use, and population dynamics of Indo-Pacific humpback dolphins off the west coast of Taiwan, also the suggestion of the immediate monitoring system plan in the marine protected area will be addressed, which can provide the conservation and management strategies for the authorities.中華白海豚空間分布族群結構動態趨勢海上調查棲地利用照片辨識回聲定位水下聲學海洋保護區監測系統Chinese white dolphinSousa chinensisdistributionpopulation structurepopulation dynamicsboat surveyhabitat usephoto identificationecholocationacoustic data loggermarine protected areamonitoring system