assessment of mercury bioaccumulation in zebra cichlid (cichlasoma nigrofasciatum) exposed to sublethal concentrations of permethrin

Assessment of Mercury Bioaccumulation in Zebra Cichlid (Cichlasoma Nigrofasciatum) Exposed to Sublethal Concentrations of Permethrin

Background: Aquatic ecosystems are frequently subjected to contamination by toxic heavy metals and pesticides, yet very little is known about the influence of pesticides on bioaccumulation of heavy metals in aquatic organisms. Mercury is a toxic metal with no known biological benefit to organisms. Bioavailability of mercury in aquatic environments depends on biological and non-biological parame...

Protective Effects of Silymarin Extract on Malthion-Induced Zebra Cichlid (Cichlasoma Nigrofasciatum) Hepatotoxicity

Background: There is much evidence indicating that natural substances from edible and medicinal plants possess powerful antioxidant and hepatoprotective activities. The objective of the present study was to investigate the potential hepatoprotective effect of silymarin in fish exposed to malathion. Methods: Zebra cichlid fish were allocated into five groups of which one group received norma...

reproductive success of the zebra cichlid cichlasoma nigrofasciatum in relation to parental care and body size

the zebra cichlid cichlasoma nigrofasciatum is a species famous for its behaviors of biparental care. this study was conducted to examine the effect of parental care and their size on the reproductive success of this fish. hatching rate (hrs) has significant difference (p

protective effects of silymarin extract on malthion-induced zebra cichlid (cichlasoma nigrofasciatum) hepatotoxicity

background: there is much evidence indicating that natural substances from edible and medicinal plants possess powerful antioxidant and hepatoprotective activities. the objective of the present study was to investigate the potential hepatoprotective effect of silymarin in fish exposed to malathion. methods: zebra cichlid fish were allocated into five groups of which one group received normal fe...

Decreased immune response in zebra finches exposed to sublethal doses of mercury.

Mercury (Hg) is a ubiquitous contaminant with deleterious effects on many wildlife species. Most studies to date have focused on fish-eating birds and mammals because much historical Hg pollution is aquatic. Recently, however, comparable blood-Hg levels have been found in terrestrial insectivorous songbirds. As a result, research is needed to clarify the effects of Hg exposure on songbirds. One...

Stress Response of Red Snapper (Lutjanus argentimaculatus) Exposed to Sublethal Concentrations of Crude Oil