基于种群生态学概念论大黄鱼种群的划分

依据种群生态学概念, 对我国沿海分布的大黄鱼地理种群划分进行了论述. 以是否有地理隔离作为划分必要条件, 其他作为辅助参考. 经分析论证认为: 大黄鱼分布区域的天然屏障的地理隔离并不存在. 黄海、东海由台湾暖流和沿岸流形成的环流, 台湾海峡、南海由季风形成的环流, 在我国沿海形成了完全分隔的海流体系, 作为海流形成的区域性的地理屏障, 将南北大黄鱼隔离形成南黄海－东海以及台湾海峡－南海2个地理种群. 南黄海－东海地理种群由朝鲜西南部、中国的吕泗洋、岱衢洋、大目洋、猫头洋、洞头洋、官井洋和东引列岛等8个产卵群体组成; 台湾海峡－南海地理种群由牛山岛、九龙江外诸岛屿、南澳岛、汕尾外海、硇州岛附近海区和徐闻海区等6个产卵群体组成.

Division of Populations for Pseudosciaena crocea Based on Population Ecology Concept:Discussion

The geographic population dividing for large yellow croaker (Pseudosciaena crocea) is discussed from the perspective of population ecology. From the concept of “geographic population” in population ecology, the geographic isolation is the necessary condition for dividing the population into the different geographic groups with other factors used as the auxiliary reference. Although the solutions are not absolute, the area of P. crocea is divided into two completely separate oceanic current systems: (1) the ocean circulation formed by Taiwan warm current and coastal current in the East China Sea and Yellow Sea, (2) the ocean circulation formed by South China Sea monsoon in the Taiwan Strait and the South China Sea. The two oceanic current systems separate P. crocea into two geographic populations: southern Yellow Sea and East China Sea (SYS-ECS) population, and Taiwan Strait and South China Sea (TS-SCS) population. The SYS-ECS population includes 8 spawning aggregations as follows: south-west area of Korean Peninsula, Lvsiyang, Daiquyang, Damuyang, Maotouyang, Dongtouyan, Guanjingyang and Dongyin archipelago. In contrast, the TS-SCS population covers 6 spawning aggregations: Niushan Island, outside islands of Jiulong River, Nanao Island, Shanwei-offshore, Naozhou Island and Xuwen-offshore.