Liver biomarkers response of the neotropical fish to environmental stressors associated with the oil industry.

The Acacias River in Colombia receives large volumes of industrial effluents mostly derived from the oil industry. To contribute to the study of the possible effects of industrial wastewaters on the aquatic environment and particularly on fish populations, a native neotropical fish, was used as a sentinel species. Wild specimens of were caught at three different places of the Acacias River taking as reference the point of discharge of an oil industry effluent; upstream, downstream, and at the vicinity of the discharge pipe.

Biochemical responses and proximate analysis of Piaractus brachypomus (Pisces: Characidae) exposed to phenanthrene.

Polycyclic Aromatic Hydrocarbons (PAHs) are complex compounds generated from industrial and anthropogenic activities, although natural phenomena are also responsible for their presence in the environment. The aim of this study was to evaluate the effect of phenanthrene on proximate composition and antioxidant activity in Piaractus brachypomus during a subacute exposure. Fish were exposed intraperitoneally to phenanthrene (0.

Physiological and enzymatic responses of Chlorella vulgaris exposed to produced water and its potential for bioremediation.

In South America, Colombia is known as an important oil-producing country. However, the environmental impact of crude oil industry has not been studied deeply and few studies have been carried out for evaluating responses of algae and its adaptation under specific conditions. Enzymatic and physiological effects in Chlorella vulgaris and its potential for bioremediation after exposure to produced water (PW) were assessed using different PW concentrations (0, 25, 50, 75 and 100%) and crude oil.