Is Chemical Control for Crayfish in Hatchery Fish Shipments Practical?
Ann L. Allert,
Daniel J. Westrich,
David W. Whites
et al.
Abstract:Invasive crayfish (family Cambaridae) displace native crayfish species and alter aquatic habitat, community structure, and ecosystem function. We evaluated whether chemical control can be a reliable control agent for crayfish to ensure that shipments from fish hatcheries did not result in new infestations of invasive crayfish. A series of acute (≤1 h) toxicity tests were conducted to evaluate the toxicity of cypermethrin and pyrethrin to crayfish, freshwater mussels, and fish; chemical concentrations in test o… Show more
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