Effect of copper sulfate on hematology, blood chemistry, and hepato-somatic index of an Indian catfish, Heteropneustes fossilis (Bloch), and its recovery

Assessment of Tolerant Sunfish Populations (Lepomis sp.) Inhabiting Selenium-Laden Coal Ash Effluents

“…The "sh in the referenced studies had selenium hepatopancreas concentrations as high as 21}40 g/g (wet weight) compared to an estimated average liver selenium concentration of 14.3 g/g (wet weight) in the current study. Both leukopenia and, conversely, leukocytosis have been reported in "sh populations exposed to heavy metals (Mishra and Srivastava, 1980;Gill and Pant, 1987;Singh and Reddy, 1990). WBC abundance provides an indication of "sh health and a high WBC count may indicate a subclinical infection.…”

Impact of nickel (Ni) on hematological parameters and behavioral changes in Cyprinus carpio (common carp)

“…Similarly, hyperactivity, erratic swimming, and loss of equilibrium in brook trout, Salvalinus fontinalis, in response to lead treatment have been reported (Holcombe et al, 1976). Singh and Reddy (1990) in their study on Heteropneustes fossilis, had reported lethargy response and frequent surfacing along with gulping of air in exposure to just 0.25 ppm of copper.…”

“…Several factors have been attributed to behavioral changes/abnormalities in fish exposed to heavy metals like Ni (U.S. EPA, 1986). These include nervous impairment due to blockage of nervous transmission among the nervous system and various effecter sites, paralysis and depression of respiratory centre due to enzyme dysfunction, and alteration of energy pathway which results in energy depletion (Singh and Reddy, 1990). Bioaccumulation is not a valid criterion for judging the ecotoxicity of nickel substances because nickel is an essential element for many organisms and these organisms would suffer if they did not have the ability to accumulate and use nickel (Ololade and Oginni, 2010).…”

Effect of Copper Toxicity on Hematological Parameters to Fresh Water Fish Cyprinus Carpio(Common Carp)

“…In acute tests, when Carp and Rainbow trout yearling were exposed to copper concentrations close to LC50, there were established increased levels of erythrocyte count, haemoglobin concentration (Svobodova et al, 1994). 0.25 mg/l of copper also increased haemoglobin concentration in the blood of Indian catfish (Heteropneustes fossilis Bloch) (Singh and Reddy, 1990). An increase in the levels of haemoglobin concentrations was observed in fish after 96-hour exposure to 3 mg/l of copper (Mishra and Srivastava, 1980).…”