IMPACT OF INVASIVE FISHES ON THE NATIVE FISH FAUNA OF RIVER YAMUNA AT MATHURA DISTRICT, U.P.
Journal Title: GJRA-Global Journal For Research Analysis - Year 2019, Vol 8, Issue 6
Abstract
In terms of the status of Invasive sh species signicance presence of Oreochromis nilocticus, Cyprinus carpio, Hypopthalmicthys molitrix and Clarias geripineus is evident in majority of the river stretches. A preliminary record shows that 48-sh species belonging to 13-families were recorded in Mathura waters so far. Species of the family Cyprinidae were most dominant followed by Bagaridae, Schilbeidae, Clupeidae, Ophiocephalidae. As far as concern with the trophic utilization of shes; carnivorous shes were dominant followed by herbivorous and omnivorous. Now present condition has changed in terms of native sh fauna are gradually decreasing. It has been recorded that presence of invasive shes gradually establishing themselves as a breeding population replacing the Indian Native Fish Fauna. Study reveals that the use of Yamuna river water for the purpose of hydal projects, irrigation and drinking purpose and water pollution are the main threats affecting the habitat of native species and has provide a favorable environment for the alien shes. So, need of the hour is to check the entry of alien shes in river Yamuna and monitoring the river water in terms if water pollution can be a mile stone in conservation of life and environment as well. In the present study recorded 19 -Species belonging to 16 genera and 9 families, of which reported 4- species as Alien.
Authors and Affiliations
Praveen Ojha
Keywords
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