Histopathological study on kidney and liver of common moorhen (Gallinula chloropus Linnaeus, 1758) as the bioindicator of pollution in anzali wetland

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Abstract

Anzali wetland, one of the most important ecosystems, located in the south of
the Caspian Sea (lat. 37º28΄ N: lon. 49º25΄ E), receives a large amount of urban,
agronomic and industrial swages. Nonethless it is a main place to brees, to grow
up and to take winters for waterfowls. Twelve Common Moorhen (Gallinula
chloropus Linnaeus, 1758) have collected alive from four stations on Anzali
wetland, during April 2010. Histopathological investigation were shown clear
alterations in liver tissues withdegeneration of hepatocytes, pigments
macrophage aggregation, rupture of cells with dilation of diss space, congestion
and haemorrhage, hemosiderin pigments aggregation. Aggregation of leukocyte
infiltration, capillary dilation, hypertrophy, degeneration and shrinkage of the
cells, affected portion of the kidney, glomerular expansion and absence of the
Bowman’s space, tubular epithelial cell hypertrophy, were also observed in
kidney tissues. Results of the present stude were revealed that kidney and liver
tissues of Common Moorhen can be investigated as a pollution bioindicator in
Anzali wetland, due to their relatively long period of wintering migratory and
also high polluted body of ecosystem in Anzali wetland area.

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