Adaptation of the anchoveta (Engraulis ringens) to the Peruvian upwelling system
1989
Mathisen, O.A. (Alaska Fairbanks Univ. Juneau, Alaska (USA). Juneau Center for Fisheries and Ocean Sciences)
Following a brief review of the adaptations of anchoveta (Engraulis ringens) to its highly variable upwelling ecosystem, the hypothesis is presented that the anchoveta stock off Peru consists of a large number of local subpopulations of which each is genetically adapted to "home" to a different upwelling plume, and to spawn during a specific period of the year. The impact of selective over exploitation of the most productive of these subgroups is discussed in analogy to Pacific salmon and Atlanto-Scandian herring, and the implications for management and research are outlined
显示更多 [+] 显示较少 [-]