| metals in some lagoons of mexico. | the concentrations of metals, cd, cu, fe, mn, ni, pb, and zn were determined in some lagoons to establish the level of metal pollution. the lagoons studied were alvarado lagoon, veracruz; san andres lagoon, tamaulipas; and terminos lagoon, campeche. the concentrations were determined in water, oyster (crassostrea virginica), and sediments. metals were accumulated in either oysters or sediments. cu and zn were higher in oysters and fe and mn were higher in sediments. the results in water samples ... | 1995 | 7621796 |
| filtration rate, assimilation and assimilation efficiency in crassostrea virginica (gmelin) fed with tetraselmis suecica under cadmium exposure. | crassostrea virginica is an epibentic filter-feeding bivalve of economical importance in coastal lagoons of the gulf of mexico, locations with increasing inputs of heavy metals such as cadmium that have become environmental stressors. in this study, feeding and assimilation of the species were evaluated as physiological indicators of cadmium exposure. for this purpose, the filtration rate (fr), food assimilation (a) and assimilation efficiency (ae) of oysters from the mandinga lagoon, veracruz, ... | 2010 | 20390836 |
| effects of heavy metals on the oyster (crassostrea virginica) at mandinga lagoon, veracruz, mexico. | the mandinga lagoon in the mexican state of veracruz is an important ecological zone that produces 32% of the oyster output in the state of veracruz, the main oyster producer in mexico. samples of water, sediment, and oysters were collected in 2003 and 2004 to study heavy metal pollution. metal concentrations were determined in water, soil, and oyster tissues from fresh and detoxified crassostrea virginica, and histology samples were analyzed. metal (cr, cd, and pb) concentrations in water were ... | 2009 | 20073327 |