Changes in the Predator–Prey Behavior of Fathead Minnows ( Pimephales promelas ) and Largemouth Bass ( Micropterus salmoides ) Caused by Cadmium
1978; Canadian Science Publishing; Volume: 35; Issue: 4 Linguagem: Inglês
10.1139/f78-077
ISSN0015-296X
AutoresJames F. Sullivan, Gary J. Atchison, Darko Kolar, Alan W. McIntosh,
Tópico(s)Environmental Toxicology and Ecotoxicology
ResumoIncreased prey vulnerability was demonstrated for fathead minnows (Pimephales promelas) undergoing acute (24-h) and subacute (21-d) sublethal cadmium exposure prior to interacting with largemouth bass (Micropterus salmoides). The lowest acute and subacute cadmium concentrations that increased prey vulnerability were 0.375 and 0.025 mg Cd/L, respectively, with the latter well below the maximum acceptable toxicant concentration for fathead minnows. Prey exposed to cadmium displayed altered behavior patterns, including abnormal schooling behavior. Key words: cadmium, behavior, predator–prey, bioassay, Micropterus salmoides, Pimephales promelas
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