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- Title
ASSESSING TOXICITY EFFECT OF QUINALPHOS AND THIODAN ON HISTOLOGY OF GILLS OF FRESH WATER MUSSEL, PARREYSIA CORRUGATA.
- Authors
Phirke, Pramod
- Abstract
Pesticides are the leading polluting agents of the aquatic ecosystem which cause severe threats to its flora and fauna. Chronic effect of pesticides on histology of gills of freshwater bivalves, Parreysia corrugata were studied. P. corrugata exposed to sublethal concentration of organophosphate pesticide quinalphos (0.108 ppm) and organochlorine pesticide thiodan (0.0708 ppm) exhibited severe damages to the epithelium of the gills resulting in loss of cellular organization of epithelium and connective tissue, edematic, necrosis, hyperplasia, and vacuolization, atrophy of secondary gill lamellae, exhausted cilia and haemorrhage. Gill filaments were found to be disintegrated. Some cells and nuclei were observed in abnormal shape. Destruction of structural organization of gills could affect their biochemical and physiological functions and minimize the life sustainability of bivalves. The toxicity effect of thiodan is more severe than that of quinalphos.
- Subjects
FRESH water; ORGANOCHLORINE pesticides; GILLS; ENDOSULFAN; HISTOLOGY; BIVALVE shells
- Publication
Journal of Experimental Zoology India, 2022, Vol 25, Issue 2, p1385
- ISSN
0972-0030
- Publication type
Article