海洋及海岸 Ocean and shore
香港海洋及海岸的生境種類廣泛，包括泥灘、石灘、沙灘、岩岸、離岸小島、海洋的浮游層、海床、珊瑚群落、海草群等等。香港有百分之六十的面積範圍為海洋，海岸線總長約一千公里。香港的海岸線比較彎曲，但為應付增加的土地需求，一部份的天然海灣已因填海發展而消失。
一般而言，香港西部的水域鄰近珠江河口，為鹹淡水交界，而東部水域則以鹹水為主，較易受海洋環流影響。每年夏季，東部水域的小島均是不少燕鷗的繁殖地，位於南丫島的深灣則是綠海龜重要的產卵地點，其他可見於香港水域內的重要物種如中華白海豚，黃唇魚和紅斑等。單是本港的水域，已記錄了約一千種的魚類和超過八十種的石珊瑚。
There is a wide range of ocean and shore habitats in Hong Kong, including mudflat, boulder shore, sandy shore, rocky shore, outlying islands, pelagic zone of sea, seabed, coral community, sea grass bed, etc. About 60% of Hong Kong's total area is sea, forming a tortuous shoreline of about a thousand kilometer in total length. Parts of the shoreline have already been reclaimed for development.
Generally, Hong Kong waters can be classified into western estuarine zone, which is next to the Pearl River Delta, and eastern oceanic zone impacted mainly by oceanic currents. Every summer, many outlying islands in the East become important breeding grounds for different tern species. Sham Wan in Lamma Island is also the only place in Hong Kong with recent records of Green Sea Turtle (Chelonia mydas) laying eggs. Chinese White Dolphin (Sousa chinensis), Chinese Bahaba (Bahaba taipingensis) and Hong Kong Grouper (Epinephelus akaara) are species under threats in local waters. In Hong Kong waters, around a thousand fish species and over 80 hard coral species have been recorded.
