Acute toxicity of tributyltin to the Caprellidea (Crustacea: Amphipoda)

In order to compare the acute toxicity of tributyltin (TBT) between sexes, five species of caprellid amphipods were exposed to seven levels (0, 0.001, 0.01, 0.1, 1, 10 and 100 μg l−1) of TBT for 48 h at 20 °C. The 48-h LC50 values in male and female were 1.3–6.4 μg TBTCl l−1 and 1.2–8.6 μg TBTCl l−1, respectively. No sex-specific differences of the acute toxicity of TBT were observed in the caprellids. These findings suggest that the risk of survival in response to exposure to TBT between sexes is similar in the caprellids.