M. Prazakova et J. Fott, ZOOPLANKTON DECLINE IN THE CERNE LAKE (SUMAVA MOUNTAINS, BOHEMIA) AS REFLECTED IN THE STRATIFICATION OF CLADOCERAN REMAINS IN THE SEDIMENT, Hydrobiologia, 274(1-3), 1994, pp. 121-126
Stratigraphy of cladoceran remains in the upper 18 cm of a sediment co
re from the Lake Cerne was studied. The successive disappearance of Bo
smina longispina, Daphnia longispina and Ceriodaphnia quadrangula from
the upper layers of the sediment corresponds with our knowledge conce
rning the disappearance of these species from the open water.