Lethal and sublethal effects of malathion on three life stages of the grass shrimp, Palaemonetes pugio

The effects of malathion exposure on three life stages of the grass shrimp ( Palaemonetes pugio) were evaluated. After 96-h exposures, malathion was most toxic to newly hatched larvae with an LC 50 of 9.06 μg l −1 followed by an LC 50 of 13.24 μg l −1 for 18-day-old larvae and an LC 50 of 38.19 μg l...

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