Genetic variation in two populations of the marine calanoid copepod Acartia californiensis trinast

Abstract

Genetic variation was studied from two close populations, Estero de Punta Banda, Baja California (Mexico) and Mission Bay, California (USA). The results showed the existence of a genetic flow which was very likely established by a passive dispersal of diapause (resting) eggs that this species produces. The polymorphism and heterozygosity of the A. californiensis populations studied here are among the lowest when compared to other genetically characterized copepods. -from Authors