Assessment of acute toxicity of λ-cyhalothrin to a freshwater catfish, Clarias batrachus

2009 ◽  
Vol 9 (1) ◽  
pp. 43-46 ◽  
Author(s):  
Amit Kumar ◽  
B. Sharma ◽  
Ravi S. Pandey
Keyword(s):  
Acute Toxicity ◽  
Clarias Batrachus ◽  
Freshwater Catfish

scholarly journals Assessment of toxic potential of three different heavy metals to Clarias batrachus (Linn.) utilizing static acute bioassay

2014 ◽  
Vol 6 (1) ◽  
pp. 117-120 ◽  
Author(s):  
S.S. Gandhewar ◽  
S.B. Zade ◽  
S.R. Sitre
Keyword(s):  
Heavy Metals ◽  
Acute Toxicity ◽  
Short Duration ◽  
Clarias Batrachus ◽  
Toxicity Bioassay ◽  
Freshwater Catfish ◽  
Acute Bioassay ◽  
Toxic Potential

Acute toxicity bioassay of three different heavy metals copper (Cu), lead (Pb) and cadmium (Cd) for the freshwater catfish, Clarias batrachus were conducted for evaluation of the toxicity. The 96h LC50 values recorded for Cu, Pb and Cd were 15 ppm, 29 ppm and 35 ppm respectively. The results of this study indicate that the order of toxicity of these heavy metals is Cu>Pb>Cd in short duration acute toxicity experiments. The toxicity was found to be dependent on dose and duration of experiment for all these heavy metals. Cu was found to be much more toxic than Pb and Cd to C. batrachus.

Toxic effects of sub lethal concentration of dioctyl phthalate on the histology of liver of Clarias batrachus (Linn.).

2016 ◽  
Vol 5 (09) ◽  
pp. 4874
Author(s):  
Manisha Satpathi* ◽  
Ravinder Singh
Keyword(s):  
Acute Toxicity ◽  
Light Microscopy ◽  
Dioctyl Phthalate ◽  
Clarias Batrachus ◽  
Fresh Water Fish ◽  
Histopathological Changes ◽  
Histological Changes ◽  
Water Fish ◽  
Toxicity Effects ◽  
Plastic Products

Dioctyl phthalate (DOP) commonly used as plasticizer enters into aquatic environment from the industries manufacturing plastic products, PVC resins, cosmetics and many other commercial products. Therefore, this study was designed to evaluate the acute toxicity effects of Dioctyl phthalate on fresh water fish Clarias batrachus. The 96 hour LC50 of Dioctyl phthalate in Clarias batrachus was estimated as 14.5ml/L. Histopathological changes in liver of Clarias batrachus were determined by exposing them to a fraction of LC50(1/5th) dose with every change of water for 30 days.The liver of Clarias batrachus was excised at every interval of 30 days and histological changes of liver were studied under light microscopy. Liver tissues showed abnormalities. Centrilobular vacuolation, necrosis, eccentric nuclei and enlarged nuclei, Centrilobular degeneration of hepatocytes were observed in liver tissue of fish.

Effect of endosulfan on thyroid physiology in the freshwater catfish, Clarias batrachus

Toxicology ◽  
1991 ◽  
Vol 67 (2) ◽  
pp. 187-197 ◽  
Author(s):  
Neelima Sinha ◽  
B. Lal ◽  
T.P. Singh
Keyword(s):  
Clarias Batrachus ◽  
Freshwater Catfish

scholarly journals CADMIUM TOXICITY INDUCED MORPHOLOGICAL ALTERATION IN INDIGENOUS FISH Heteropneustes fossilis (Bloch.)

2017 ◽  
Vol 3 (1) ◽  
pp. 21-25 ◽  
Author(s):  
Madhulekha Shukla ◽  
Sunita Arya
Keyword(s):  
Acute Toxicity ◽  
Cadmium Chloride ◽  
Room Temperature ◽  
Cadmium Toxicity ◽  
Cadmium Concentration ◽  
Morphological Alteration ◽  
Body Colour ◽  
Heteropneustes Fossilis ◽  
Freshwater Catfish ◽  
Chloride Toxicity

The aim of present study was to determine the toxicity (LC50) of cadmium chloride in freshwater catfish Heteropneustes fossilis. Acute toxicity of cadmium on the indigenous fish H., fossilis was designed in the fish aquarium in laboratory at room temperature in Department of Zoology, DGPG College at Kanpur.Treated fish H., fossilis induced morphological alteration against cadmium chloride toxicity. H. fossilis showed morphological alteration such as increased opercula movement, abnormal swimming, and loss of buoyancy and fading of their body colour. Control fishes were also continuously monitored and compared with the changes caused by cadmium concentration. Heteropneustes fossilis exposed different concentration of cadmium chloride toxicity i.e. 0 ppm for 24 h, 10 ppm for 48h, 15ppm for 72h and 20 ppm for 96 h. From this present study it seems that the indigenous fish, H. fossilis is more susceptible to cadmium toxicity.

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