INTERPOPULATION RELATIONSHIPS IN 2 SPECIES OF ANTARCTIC FISH NOTOTHENIA-ROSSII AND CHAMPSOCEPHALUS-GUNNARI FROM THE KERGUELEN ISLANDS - AN ALLOZYME STUDY

Enzymatic polymorphism was used to detect variability within Nototheni a rossii from two sites on the Kerguelen Plateau and Champsocephalus g unnari from the same sites and the South Orkney Islands. No polymorphi sm was found in the second species and it was low but not statisticall y significant in the first. This apparent homogeneity does not substan tiate suggestions from other results that the populations can be separ ated, especially in the case of C. gunnari. Other approaches will be n ecessary to solve definitively the question of population separation.