Wolska-Pyś M., Ciszewska I., 1991. Changes in mesozooplankton of the southern Baltic in 1979-1988. Acta Ichthyol. Piscat. 21 (Suppl.): 249-257.
Composition, abundance, biomass and vertical distribution of mesozooplankton are compared over a ten-year period using data collected in the Gdańsk, Gotland, and Bornholm Deeps in 1979-1988. Some changes in the dominance structure among Copepoda were observed. Biomass values, compared with earlier data, were high.