Abstract

STUDY ON TOXICITY OF DIFFERENT CONCENTRATION OF HOUSEHOLD DETERGENT “TIDE” ON OXYGEN CONSUMPTION IN FRESHWATER FISH LEPIDOCEPHALICHYTHYES THERMALIS

Shaikh Nusrat Jahan* and Nisar Shaikh

ABSTRACT

Water is one of the most important and precious element on the earth surface which is very essential for life. Lepidocephalichythyes thermalis is one of the most common edible fish available in the local market of Bhiwandi was selected in the present study to analyse the effects of tide detergent on oxygen consumption capacity of the fish in two sublethal concentrations. The amount of dissolved oxygen consumed by fishes was determined using Winkler’s method. The average mortality (LC50) was determined by Finney Probit Analysis. According to probit the 50% mortality values of detergent tide for 24, 48, 72 and 96 hrs were recorded as 42 mg/L, 39 mg/L, 36 mg/L and 32 mg/L respectively. The Fishes were exposed to sublethal concentrations (13 mg/L) 1/3rd and (3.9 mg/L) 1/10th the LC50 values of tide for 48 hrs. The oxygen consumption has fluctuated with both the sublethal concentration with increase in time.

Keywords: Detergents, Tide, Dissolve oxygen, Lepidocephalichythyes thermalis, fish.