Pollution Research Paper

Vol 39, Issue 2, 2020; Page No.(308-320 )

A REVIEW ON PESTICIDES POLLUTION IN AQUATIC ECOSYSTEM AND PROBABLE ADVERSE EFFECTS ON FISH

ZESHAN UMER SHAH AND SALTANAT PARVEEN

Abstract

With rapid industrialization and exponential growth in population the contamination of air, water, soil and food by the extensive use of chemicals and other toxic compounds has become a threat to the continued existence of livings. Agricultural run offs badly affect the quality of ground and surface water as they contain pesticides and fertilizer residues. Present review article was undertaken to compile information on pesticide pollution in aquatic ecosystem and probable effects on the fish health. Pesticide pollution is of major concern due to acute toxicity in fishes where sudden and intensified mortality occurs. Mortality data LC50 values of reviewed fishes were based on Finney’s Probit analysis statistical method. Sub lethal concentrations of pesticide causes over all changes in the physiology, behavior, histology, hematology, defense mechanism etc. that becomes lethal to the fish. Certain banned pesticides are still being used in agriculture and other house hold practices having their serious impacts on the non target organisms therefore, concerted efforts along with rational use of pesticides and integrated pest management are considered as the main approach to reduce pesticide pollution in aquatic systems. More research should be performed to conclude the lethal and sub-lethal impact of the particular pesticide used on the survival and performance of non target invertebrate and vertebrate animals including fish health.

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