Aa. Labay et Tm. Brandt, PREDATION BY CYCLOPS VERNALIS ON FLORIDA LARGEMOUTH BASS AND FOUNTAINDARTER LARVAE, The Progressive fish-culturist, 56(1), 1994, pp. 37-39
Swim-up Florida largemouth bass (Micropterus salmoides floridanus) wer
e held in 1 L of water with the following combinations of zooplankton:
400 mixed cladocerans, 0 Cyclops vernalis; 200 mixed cladocerans, 200
C. vernalis; and 0 cladocerans, 400 C. vernalis. After 24 h, mean sur
vival percentages for Florida largemouth bass were 97, 27, and 7%, res
pectively. Larval fountain darters (Etheostoma fonticola) were tested
similarly; after 24 h, 100% of the fish combined with cladocerans only
were alive, but no larvae survived either treatment containing C. ver
nalis.