伶仃洋河口湾的北部有虎门、蕉门、洪奇沥和横门等四个珠江入海口门,接纳珠江总迳流量61％,南边以澳门—香港一线为界,面积达1165.2平方公里。其西北面通过网状河汊,与大城市广州和珠江三角洲众多的中、小城镇连接,西面有珠海,东面有深圳两个经济特区,东南面毗连香港。这样特殊的地理位置,使伶仃洋河口湾的铅比珠江口其它河口浅海区高,在底栖生物体内尤其明显。 Lingdingyang Bay estuary in the north are Humen, Banana, Hongqi Lek and cross the four Pearl River estuary, receiving 61% of the total flow of the Pearl River, the southern border to Macau - Hong Kong, an area of ​​1165.2 square kilometers. Its northwest surface is connected with many medium and small towns in the cities of Guangzhou and the Pearl River Delta through the Mesopotamia. There are Zhuhai in the west, two special economic zones in Shenzhen in the east, and Hong Kong in the southeast. Such a special geographical location, Ling Dingyang estuary lead than other estuaries Pearl River estuary shallow sea area, especially in benthic organisms.