Abstract
Host fecundity and parasite growth and development were assessed in female Cyclops bicuspidatus thomasi experimentally infected with proceroids of Triaenophorus crassus. Copepods were given daily rations of Paramecium caudatum, from zero per day to ad lib. Host fecundity and proceroid growth were significantly reduced at lower rates of host feeding, but no direct effects of parasite presence on host fecundity were detected. Proceroid growth was nutrient-limited but some proceroid growth occurred in copepods with no food intake. More proceroids were differentiated within 10 days in hosts fed four or more Paramecium per day than in hosts fed fewer. The results indicate that a knowledge of host food intake is required for evaluation of the effects of larval cestodes on their crustacean intermediate hosts.
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