@ARTICLE{Kalinowski_Janusz_Diurnal_1980, author={Kalinowski, Janusz and Witek, Zbigniew}, volume={vol. 1}, number={No 4}, journal={Polish Polar Research}, pages={127-146}, howpublished={online}, year={1980}, publisher={Polish Academy of Sciences}, publisher={Committee on Polar Research}, abstract={On the basis of measurements of the depth of occurrence of 11000 krill aggregations and the biological analyses of these animals and measurements of some environmental factors the diurnal vertical distribution of aggregations is presented against the background of various environmental conditions. Vertical distribution of aggregations is closely related to the feeding rhythm of krill. Active vertical migrations have been recorded at civil twilight. The increasing and decreasing rate of aggregations in those periods is described.}, type={Article}, title={Diurnal vertical distribution of krill aggregations in the Western Antarctic}, URL={http://www.journals.pan.pl/Content/111639/PDF/1980_4_127-146.pdf}, keywords={Antarctic, krill, vertical distribution}, }