Author(s): Anuragini Kadwalia

Abstract: Invasive fishes are becoming a global concern for the fisheries. These fishes are characterized by their remarkable adaptability to varying environmental conditions, high fecundity and hence pose a significant risk to native fish populations and overall ecosystem health. They often outcompete indigenous species for resources, leading to a decline in fish diversity. In India, the major rivers like Ganga, Yamuna, Brahmaputra have been dominated by invasive fishes and have displaced the local fish fauna. The main invasive fishes responsible for this ecological shift are Cyprinus carpio, Oreochromis niloticus, Oreochromis mossambicus, Hypophthalmichthys nobilis. Furthermore, challenges like climate change and project regarding interlinking of rivers further enhances the threat of increase in the distribution range of the invasive fishes. This paper discusses the impacts of these fishes on the local fish fauna, fisheries, invasion pathways and mitigation strategies.

DOI: 10.22271/fish.2025.v13.i4c.3133

Pages: 208-212  |  1234 Views  643 Downloads

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