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Manganese Neurotoxicity in Oreochromis niloticus

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Author(s): Annabelle Herrera | Elena Catap

Journal: Science Diliman
ISSN 0115-7809

Volume: 4;
Issue: 1;
Start page: 57;
Date: 1992;
Original page

Keywords: Manganese | Oreochromis niloticus | manganese neurotoxicity

ABSTRACT
Manganese is not an acutely hazardous environmental contaminant at low levels, but increased dose produces serious degenerative disorders in Oreochromis niloticus. Sublethal exposure of fry to 2000 mg/L manganese chloride for eight days displays evidences of poisoning, and hard hit is the brain. Light microscopy shows appearance of gaps between brain layers and cell destruction. Electron microscopy shows damage to subcellular structures.
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