Comparative Study of Acute Toxicities of Endosulfan, Chlorpyrifos and Permethrin to Zebrafish, Danio rerio (Cyprinidae)
Journal Title: Scholars Academic Journal of Biosciences - Year 2014, Vol 2, Issue 7
Abstract
Fish and other organisms are affected by pesticides which pollute the natural water through agricultural runoff and various other means. The aim of this study was to determine and compare the acute toxicities of three different categories of pesticides viz organochlorine (endosulfan), organophosphate (chlorpyrifos) and synthetic pyrethroid (permethrin) which are commonly used in agricultural practices. Adult male and female zebrafish were randomly selected and exposed to these three pesticides. The toxicity tests were performed separately for each pesticide. The mortality rate of zebrafish was monitored under laboratory conditions for the time period of 96-h. Data obtained from the toxicity tests were evaluated using the Probit Analysis Statistical method. The toxicity tests gave the 96-h LC50 values as 0.10, 0.16 and 0.13µg/l for endosulfan, chlorpyrifos and permethrin respectively. The LC50 values revealed that all the three pesticides were highly toxic and the zebrafish showed highest sensitivity towards endosulfan followed by permethrin and chlorpyrifos. Further, the fish exhibited respiratory distress (such as gasping in air), loss of balance and erratic swimming prior to death. It was also found that the toxicity of these pesticides were time as well as concentration dependent. It could be concluded that these pesticides are extremely toxic and should be used very carefully. Zebrafish can be used as bioindicator to assess the pesticidal pollution in aquatic environment.
Authors and Affiliations
Priyanka Tiwari, Badre Alam Ansari
Keywords
Related Articles
- EP ID EP377793
- DOI -
- Views 112
- Downloads 0
Greater trochanteric versus piriformis fossa entry for antegrade femoral diaphyseal nailing: A study to establish technical superiority
Femoral shaft fractures are best managed surgically. This study included a group of 40 randomly distributed patients with femoral diaphyseal fractures. Each group of randomly distributed patients consisted of 20 patien...
Clinical and Functional Outcome and Complications of Tibial Diaphyseal Fractures Treated with Intramedullary Interlocking Nailing
Tibial diaphyseal fractusres were treated by various methods and intramedullary interlocking nailing has evolved as a gold standard treatment. The clinical and radiological outcomes have been good and complication rates...
Eco-toxicological studies of a pulse crop (Vignaradaita, L.) with lead stress.
Abstract:In the present study, the ecotoxicologicaleffects of Lead nitrate is evaluated taking a locally cultivated pulse crop VignamungoL. The effective concentration of the toxicant was determined taking in to consider...
Clinico-haematological and histopathological features of the Swiss albino mice Mus musculus L. in response to chronic cypermethrin exposure
Abstract: Cypermethrin is one of the widely used broad-spectrum pyrethroid insecticides because of their high insecticidal activities and lower mammalian toxicity. But indiscriminate and unregulated uses of this insectic...
Screening and optimization of indole 3 acetic acid producing non-heterocystous cyanobacteria isolated from saline soil
Cyanobacteria are diverse group of oxygenic photosynthetic prokaryotes. Indole 3 acetic acid is one of the major phytohormones for plant growth. To explore the Indole 3 Acetic Acid (IAA) production by cyanobacteria from...