Studies on the Acute Toxicity of Aldrin on Heteropneustes fossilis (Bloch) and Channa orientalis (Bloch and Schneider)

Microcystin toxicity in a freshwater fish, Heteropneustes fossilis (Bloch)

Microcystin is a toxin secreted by cyanobacteria, which are the dominant phytoplankton in eutrophic freshwater bodies. The present study reports histopathological, hematological and biochemical changes in the freshwater fish, Heteropneustes fossilis due to toxicity of microcystin. Toxic effects were observed in liver, kidney, corpuscles of Stannius, gills and gonads. Bilirubin concentration inc...

Acute toxicity bioassay of dimethoate on freshwater airbreathing catfish, Heteropneustes fossilis (Bloch).

Pesticides are chemicals used for pest control in the agricultural fields. They finally reach the surrounding water bodies through surface runoff affecting the aquatic fauna. Dimethoate is frequently used organophosphate pesticide due to its high effectiveness and rapid breakdown into environmentally safe products. A 96 hr static acute toxicity test was carried out to determine the LC50 value o...

Histological Studies on Kidney of Cadmium Chloride Exposed Freshwater Catfish , Heteropneustes Fossilis ( Bloch )

Effect of Cd++ On Catalase Activity on Air Breathing Fresh Water Teleost Fish Heteropneustes fossilis (Bloch)

The objective of this study is to determine the effect of Cadmium (a heavy metal) on Catalase activity on tissues of liver, kidney and gill of freshwater air breathing Teleost fish (Heteropneustes fossilis). Catalase, a oxido-reductase enzyme play an important role in anti-oxidant defence System which protect animal from oxidative stress. Heteropneustes fossilis (Bloch), a medicinally important...

Effect of Bisphenol A on certain Hematological Parameters of Heteropneustes fossilis, Bloch

Effect of Bisphenol A on the hematological parameters total RBC count, total WBC count and hemoglobin content was assessed in Heteropneustes fossilis caught from wild. Behavioural changes were also monitored. It was found that 72 hour exposure of BPA at a concentration of 0.1g/L has lowered total RBC count and increased WBC count. Hemoglobin concentration in the blood also decreased exposure to...