Abstract
Static 96 h bioassays were conducted on milkfish fingerlings at concentrations ranging from 1.00 to 1.80mg/l KMnO4. Histopathological analyses of gills, liver, and kidney tissues revealed significant changes even in non-lethal concentrations tested. Damage became severe with in-creasing concentration and longer exposure to the chemical. Partial to complete recovery was observed in gills, liver, and kidney cells of fish exposed to KMnO4 for 96h and then maintained in KMnO4-free seawater for 240h.
