Oceanic shallow sea species, inhabiting water depth to the surface 800m, autumn and winter in the continental shelf 50-200m crowded. Life cycle 1-2 years. It mainly feeds on crustaceans, fish, and cephalopods. The crustaceans include the species of the genus Basilicus, the spiny lobsters, the krill, and the oysters; the fishes mainly include larval carps, lantern fish, etc.; the cephalopods are mainly Argentine alaska, Patagonia squid, etc. . The cephalopods are more important in the diets of larger individuals and are themselves diets for carnivorous fish, marine mammals, and seabirds.
The population structure is quite complicated. According to the spawning time, growth rate and the spatio-temporal distribution of Aberdeen, the four spawning groups can be divided into spring, summer, autumn and winter. The spawning period runs through the year and peaks during the winter (May-August). Based on size, maturity, and spatial and temporal distribution of the spawning ground, they can be divided into four groups: the southern Patagonian population, the northern population of Buenos Aires and Patagonia, Summer spawning group and spring spawning group.