|
Useful Links |
|
|
Article Details :: |
|
|
| Article Name : | | | ACUTE TOXICITY OF CHROMIUM AND LEADTO THE FRESHWATER LEBISTESRETICULATUS(PETER) | | Author Name : | | | SANYOGITA R VERMA | | Publisher : | | | Ashok Yakkaldevi | | Article Series No. : | | | GRT-2380 | | Article URL : | |  | Author Profile View PDF In browser | | Abstract : | | | Present study was carried out to delineate toxic level of metal to Lebistesreticulates (guppy) (Poeciliidae).Freshwater fish L. reticulates were subjected to fish bioassay testin the laboratory conditions using chromium (Cr) and lead (Pb) metals. Mortality was assessed at interval of 24 hour (h), 48h, 72h and 96h. Acute toxicity and median lethal concentrations (LC50) were determined by Sprague and Finney method. The 95% confidence interval was calculated as per the literature, Litchfield-Wilcoxon. Slope and regression (R2) were also calculated to confirm the authenticity of the results. LC50 decreased with increased mean exposure times for both metals. Results indicated that the Cr is more toxic than Pb. Pb was found to be least toxic for L. reticulatus. Relationships between 96 h LC50 and physico-chemistry of water showed negative correlation with pH and dissolve oxygen. | | Keywords : | | |
|
|