Iranian Journal of Fisheries Sciences

fa Effect of copper sulfate on eradication of snail’s specie, Oncomelania quadrasi, in aquatic habitats having Labeo rohita as a selected fish The snail’s specie, Oncomelania quadrasi, is found abundantly in fresh water fish ponds of Punjab. It is an intermediate carrier / host of various digenetic trematode parasites which causes many serious fish diseases in aquaculture ponds. The purpose of this study was targeted for controlling these snails in aquatic environments through chemical control strategies using copper sulfate as an eradicant. Mainly three trials were conducted to determine the effectiveness of copper sulfate against this snail sp. in laboratory aquaria conditions. Trial I involved the copper sulfate treatment sprayed directly for reductions of snails present on the upper moist layer of soil. Trial II was demonstrated for reductions of the snail densities buried under the depth of 8-16 inch layer of soil. Trial III was managed to study the copper sulfate toxicity on the survival of snails and Labeo rohita present together in the same aquatic media. The study indicated that copper sulfate was effective for eradication of the snails in all conditions whether present on the wet edges / moist soil surfaces, buried in the soils or present in the aquatic environment with fish, however, with varying degrees and intensities. Snail, Oncomelania quadrasi, Labeo rohita, Copper sulfate, Molluscicide, Toxicity 800 814 http://jifro.ir/browse.php?a_code=A-10-23-14&slc_lang=fa&sid=1 W. Kashifa Naghma kashifanw@gmail.com 100319475328460021758 100319475328460021758 Yes K. Zehra 100319475328460021759 100319475328460021759 No H.N. Nasir 100319475328460021760 100319475328460021760 No B. Imtiaz 100319475328460021761 100319475328460021761 No H. Sikender 100319475328460021762 100319475328460021762 No