Acute Toxicity, Morphological Changes and Behavioral Responses Induced by Sodium Perfluorooctanoate in Indian Major Carp Labeo rohita (Ham.)

Abstract

Sodium perfluorooctanoate (NaPFO) is an anthropogenic ubiquitous environmental pollutant mainly used in textile, paper and ink industries, for specialized usage as emulsifiers, firefighting foam, lubricants etc. It finds entry into aquatic ecosystem through effluents from these industries. Static renewal bioassay test was conducted to determine 96 h LC₅₀ of NaPFO on Indian major carp, Labeo rohita. The behavioral and morphological alterations in fingerlings were observed critically during the whole experiment and evaluated on 2nd, 5th and 10th day exposed to 1/5thsublethal concentration (10 mg/l) of 96 h LC₅₀ (50.11 mg/l). The fingerlings in exposed media exhibited hyper excitability, irregular and erratic swimming movements, loss of equilibrium and lying to the bottom of aquarium, along with morphological alterations such as shedding of scales, loss of body weight and mucus secretion throughout the body of test fingerlings. The present study concluded NaPFO to be a potent toxicant to the fingerlings, posing a threat to their existence, ultimately to the aquatic ecosystem.

Keywords: Sodium perfluorooctanoate (NaPFO), behavior, morphology, fish toxicity

Cite this Article

Ankita Rajyaguru, Anita Bahadur. Acute Toxicity, Morphological Changes and Behavioral Responses Induced by Sodium Perfluorooctanoate in Indian Major Carp Labeo rohita (Ham.). Research & Reviews: A Journal of Toxicology. 2018; 8(3): 1–8p.