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...。結果顯示，當跟隨拖網漁船覓食時，海 豚的平均速度顯著上升；而當海豚被來自大澳的觀豚小艇跟蹤時，其移動方向改 變的頻率亦輕微增加。此研究初步顯示，海豚的移動模式會因應不同船隻的出現 而作出短暫改變，但此研究項目仍需在未來搜集更多的數據，以作分析及評估海 豚移動模式與船隻的多寡及距離等的相互關係。 在 2011-12 年間，研究員在大嶼山一帶水域的水底聲音監察站，共錄取了 139 個、合共 10 小時 49 分的水底聲音片段。而一項針對高速渡輪所發出之噪音對海 豚的影響研究發現，在大嶼山以南一條高速船頻繁航行的主航道之背景噪音水平 明顯地高，而此高噪音水平應會對海豚構成某程度上的壓力及行為改變...

...率並沒有明顯的趨勢變化， 這可能與牠們在不同年份經常來往穿梭不同的區域所致。但在江豚出沒的高峰季 節，牠們在香港南面水域的整體年度遇見比率在近年卻有明顯的上升趨勢。相 反，中華白海豚在大嶼山附近水域的整體年度遇見比率在近年呈現下降的趨勢， 而且分別在海豚出現的三個主要區域(大嶼山西北、東北及西)均可發現此下降趨 勢。此外，研究員利用樣條線分析方法以估計中華白海豚在此三個區域的年度數 量，發現在 2002-10 年期間，海豚的整體數量由 2003 年最多的 158 條下降至 2010 年最少的 75 條；再利用 autocorrelation test 加以分析年度趨勢，發現海豚的數量 在三個...

...率並沒有明顯的趨勢變化， 這可能與牠們在不同年份經常來往穿梭不同的區域所致。但在江豚出沒的高峰季 節，牠們在香港南面水域的整體年度遇見比率在近年卻有明顯的上升趨勢。相 反，中華白海豚在大嶼山附近水域的整體年度遇見比率在近年呈現下降的趨勢， 而且分別在海豚出現的三個主要區域(大嶼山西北、東北及西)均可發現此下降趨 勢。此外，研究員利用樣條線分析方法以估計中華白海豚在此三個區域的年度數 量，發現在 2002-10 年期間，海豚的整體數量由 2003 年最多的 158 條下降至 2010 年最少的 75 條；再利用 autocorrelation test 加以分析年度趨勢，發現海豚的數量 在三個...

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... Microsoft Word - CMPB Covering paper for Flying Fox Zipline_Eng 051012.doc 1 Working Paper: WP/CMPB/15/2012 COUNTRY AND MARINE PARKS BOARD Proposed Eco-adventure Zipline Tour at Ngong Ping, Lantau North Country Park 1. Purpose To seek members’ view on the proposal submitted by Flying Fox to run an ...