Histopathological effects of petroleum hydrocarbons and heavy metals on the American oyster (Crassostrea virginica) from Tabasco, Mexico

Hydrocarbon Concentrations in Oysters ( Crassostrea virginica ) and Recent Sediments from Three Coastal Lagoons in Tabasco, Mexico

“…However, these lesions were not causing the increased mortalities (Gold et al, 1995b). The presence of oyster pathogens (Perkinsus marinus) is another possible confounding factor (Burreson et al, 1994).…”

Analysis of Heavy Metals in Water and Surface Sediment in Five Rift Valley Lakes in Kenya for Assessment of Recent Increase in Anthropogenic Activities

“…The most toxic ones such as Pb, Cu and Cd have been subjects of ecotoxicological research for a long period of time (Hodson et al 1981;Howarth and Sprague 1978;George and Pirie 1984;Chan 1995a, b;Gold-Bouchon et al 1995;Wong et al 1995;Ma et al 2003). Some of the toxic effects of heavy metals in aquatic organisms which have been reported include bioaccumulation in various organs, tissue damage (e.g.…”

Physiological, Immunological, Genotoxic and Histopathological Biomarker Responses of Molluscs to Heavy Metal and Water-Quality Parameter Exposures: A Critical Review

“…Weis et al [66] observed atrophy of digestive diverticular epithelium of oysters, Crassostrea virginica, exposed to wood preservative, chromated copper arsenate. The same report was recorded for American oysters, Crassotrea virginica, sampled from metal contaminated sites showed damage in the digestive diverticula and gills of the mollusc [27]. Porte et al [67] and Nasci et al [68] recorded a severe, heavy haemocytic infiltration and enlargement of lysosome in mussels along Mediterranean Coast and in the connective tissues of clams transplanted in a highly metal contaminated estuary located in urban and industrialized area of Tampa Bay.…”

“…Histopathological analyses could be carried out on the gills, guts, gonads and interstitial tissues of the molluscs accompanying with various observations such as; lesions, atrophy, oedema, hyperplasia, epithelial cell damage [27,28]. Histology is regarded as the easiest method of assessing short and long term toxic effects of metals on organisms in the field [29].…”