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...。 在相同的六個月監察期內，江豚的發聲紀錄卻僅限於南大嶼海岸公園及大嶼 山西南海岸公園之內，而且絕大部份於大鴉洲以南及以北的監察點錄得；在大嶼 山西南海岸公園內，狗嶺涌是唯一持續錄得相當水平的監察點。與中華白海豚的 情況不同，江豚在不同監察點及季度均於夜間錄得明顯較高的發聲水平。 自 2017 年開始搜集的 C-POD 長期數據顯示，中華白海豚的發聲記錄在整個 西部水域及每個地區均清晰地呈現明顯下降趨勢；與此同時，江豚的發聲記錄水 平反而相對平穩，甚至可能有輕微上升的趨勢，與中華白海豚的數據下降剛剛相 反。此外，中華白海豚及江豚在個別監察點的晝夜出沒及季節性出沒情況，在不 同年份都大致相若，有可能...

... yet resolved: the continued population growth, the issues of global warming, the challenges of feeding the world population without at the same time exasperating (加劇) global warming, the rapid movement of information and people around the globe, the emergence of new diseases, the major shift of...

... yet resolved: the continued population growth, the issues of global warming, the challenges of feeding the world population without at the same time exasperating (加劇) global warming, the rapid movement of information and people around the globe, the emergence of new diseases, the major shift of...

...。高速渡 輪所發出的聲響，亦遠高於沒有太多船隻出現的水域之背景噪音水平，此證明當 一些繁忙航道與海豚重要生境重疊，行經該航道的高速船所發出的聲響將大幅提 高水底噪音的水平，而影響海豚在該處的活動。由於這些船隻以高速航行，當它 們在短時間內靠近海豚時，牠們未必有時間作出合適的反應以遠離這些船隻；若 同時有數隻高速船在海豚周圍掠過，尤其是當這些船隻航行的速度、及與海豚保 持的距離經常改變以致難以揣測，海豚為要逃避船隻而所承受的壓力亦因而增 加，令牠們更易被高速船所撞擊，或逼使牠們放棄一些原適合作覓食活動的生境。 另一項有關高速渡輪對本地中華白海豚及江豚的影響評估發現，在 1999- 2010 年間，來...

... Tender Ref.: AFCD/NP/01/24 RESTRICTED (TENDER) THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT TENDER FOR SERVICES TENDER FORM Tender for the Provision of Security Guard Services to the Long Valley Nature Park Tender Reference: AFCD/N...

...), Utricularia aurea (黃花狸藻) and Wolffia arrhiza (微萍), could not be found in this survey. Callitriche stagnalis (now C. palustris) (水馬齒), Marsilea quadrifolia (田字草) and Salvinia natans (槐葉蘋) were previously considered "common" or "very common" (Hill et al., 1976), but were only recorded in one or two sites in...

...), Utricularia aurea (黃花狸藻) and Wolffia arrhiza (微萍), could not be found in this survey. Callitriche stagnalis (now C. palustris) (水馬齒), Marsilea quadrifolia (田字草) and Salvinia natans (槐葉蘋) were previously considered "common" or "very common" (Hill et al., 1976), but were only recorded in one or two sites in...

...), Utricularia aurea (黃花狸藻) and Wolffia arrhiza (微萍), could not be found in this survey. Callitriche stagnalis (now C. palustris) (水馬齒), Marsilea quadrifolia (田字草) and Salvinia natans (槐葉蘋) were previously considered "common" or "very common" (Hill et al., 1976), but were only recorded in one or two sites in...

...), Utricularia aurea (黃花狸藻) and Wolffia arrhiza (微萍), could not be found in this survey. Callitriche stagnalis (now C. palustris) (水馬齒), Marsilea quadrifolia (田字草) and Salvinia natans (槐葉蘋) were previously considered "common" or "very common" (Hill et al., 1976), but were only recorded in one or two sites in...

...慮加強保育的稀有及分布狹窄的蝙蝠品種。 Introduction Bats comprise an important part of Hong Kong’s mammal fauna, making up over 50% of all local mammal species. They are important components of our biodiversity and their small size, mobility and longevity combine to make them suitable indicator species of general...