The effect of time, concentration and temperature on bioaccumulation in the gill of crayfish procambarus clarkii induced by organochlorine pesticides, lindane and endosulfan

Abstract

1. Crayfish were exposed to $\text{1}\text{25}$ th 96-hr lc₅₀ and 96-hr lc₅₀ of lindane and endosulfan for 1, 24, 48, 72 and 96 hr.

2. Concentrations of lindane and endosulfan were determined in gill tissue at 22°C and 29°C.

3. Clear differences were found in all concentrations, times and temperatures tested in gill tissues.

4. The highest accumulation of pesticide was found in the lc₅₀ endosulfan value.