@ARTICLE{Skóra_Krzysztof_Edward_Changes_1980, author={Skóra, Krzysztof Edward}, volume={vol. 1}, number={No 4}, journal={Polish Polar Research}, pages={155-162}, howpublished={online}, year={1980}, publisher={Polish Academy of Sciences}, publisher={Committee on Polar Research}, abstract={Observations indicate a constantly decreasing mean age of shoal. In consecutive years of investigations a loss of older individuals was recorded. At present the catches consist of 3—14 years old fishes; 9—10 years old dominate. During the austral summer the fish most probably do not migrate. The shoal of the shelf maintains approximately constant frequency and dominance in classes of length.}, type={Article}, title={Changes in composition of Notothenia gibberifrons Lonnberg population of the shelf of South Georgia in the years 1977—1979}, URL={http://sd.czasopisma.pan.pl/Content/111641/PDF-MASTER/1980_4_155-162.pdf}, keywords={Antarctic fish, age, migration, reproduction, feeding}, }