Lethal and sublethal effects of chlorine, phenol, and chlorine-phenol mixtures on the mud crab, Panopeus herbstii.

摘要: The mud crab, Panopeus herbstii, was acutely exposed (96-hr) to chlorine-produced oxidants (CPO), phenol, and a CPO-phenolic mixture (1:1) determine lethal sublethal effects. 96-hr (LC50) values were determined for each individual compound mixture. Additionally, whole-animal respiration rates measured following acute exposure concentrations of or Phenol uptake/depuration in the phenol CPO-phenol concentrations. Results indicated LC50 1.06 mg/L CPO (fiducial limits (FL) = 0.53-2.01 mg/L), 52.8 (FL 45.6-64.5 184.7 total toxicant units (TTU) 143.7-250.2 TTU). Statistical analysis that toxicity less than additive. Sublethal studies only caused altered rates. After depuration, metabolic all CPO-exposure crabs generally returned control Uptake/depuration rate significantly lower uptake These findings suggest less-than-additive may result from lowered kinetics indicate discharge chlorinated-phenolic waste not additive and/or synergistic interactions, but rather effects on decapod aquatic species.