2014-01-012024-05-14https://scholars.lib.ntu.edu.tw/handle/123456789/661367摘要：台灣西部沿海的中華白海豚族群正面臨極度威脅，農委會林務局擬將設立「中華白海豚重要棲息環境」。為了評估重要棲息環境之重要監測指標，也提供未來海洋保護區細部區域劃分與相關管制規範的基礎資料，本計畫將持續調查中華白海豚在重要熱點區域內之族群生態現況，以深入了解其行為生態與族群動態。此外也將進一步建立長期水下聲學監測系統平台，來探討中華白海豚行為活動模式與海洋環境噪音變動之關係。工作內容包含四大項：(1) 持續進行36趟海上調查 (南北直線穿越線)，涵蓋南中北三個熱區為監測區域，(2) 使用無人飛行載具 (UAV) 進行空拍遙測嘗試，(3) 舉辦中華白海豚野外監測SOP工作坊 (4) 在苗栗至雲林近海持續兩組長期水下聲學監測，預計監測各30天次。期望透過長期的雙重監測機制 (目視觀察及水下被動聲學)，來瞭解中華白海豚四季及日夜24小時的變動資料，以提供本族群管理與保育的重要基線資料。所蒐集的顯著噪音事件，也將進行詳細統計分析，並探究可能對海豚活動的短期與長期影響。<br> Abstract: The population of Chinese white dolphin (Sousa chinesis) in the western coast of Taiwan is facing extreme threats. Thus, the Forestry Bureau will declare its habitat as the essential habitats of Chinese white dolphins. For future evaluation of the effectiveness of these essential habitats, and establishment of baseline data for detailed planning and management for Marine Protect Area, this project is aimed to investigate the current population status of Chinese white dolphins in “hotspot” areas to understand the details of their behavioral ecology and population dynamics. Besides, a station for long-term underwater acoustic monitoring system will be established to explore dolphins’ daily activity as well as the relationship between the dolphins’ behavioral patterns and ocean ambient noise. The project covers four major works: (1) continuous field surveys (north-south straight transect lines) for 36 times, covering the northern and southern “hotspots” as monitoring areas; (2) using unmanned aerial vehicle (UAV) as a pilot remote sensing survey, (3) SOP workshop for field observation education, and (4) two long-term underwater acoustic monitoring stations between Yunlin and Miaoli (monitoring 30 days in each site.) Ocean ambient noise will be analyzed for sound pressure size, duration, occurrence cycle, spectral distribution, etc. to quantify the contribution of each source to the noise field energy, and possible short-term and long-term effects on the dolphin activities. The result is expected to establish double long-term monitoring system (visual observation and passive underwater acoustics), and build seasonal and diurnal changing data, which will provide important baseline information for population management and conservation.中華白海豚族群生態聲學監測海洋環境噪音Chinese white dolphin (Sousa chinesis)population ecologyacoustic monitoringocean ambient nois