Endemic fish species in Tamirabharani river face extinction threat

The Tamirabharani river system in Tamil Nadu harbours several fish species found nowhere else in the world, yet these distinctive inhabitants face mounting threats from environmental degradation. Scientists and conservationists have sounded alarms over the combined impact of water pollution and loss of natural habitats that are jeopardising the survival of these endemic species.

Dawkinsia tambraparniei, a fish species unique to the Tamirabharani basin, has already been listed as endangered by conservation authorities. The species' vulnerable status reflects broader ecological problems affecting the river ecosystem, which continues to face pressure from industrial effluents, urban runoff, and altered water flows.

Habitat loss represents another critical challenge. Dam construction, water extraction, and modifications to the river's natural course have fragmented populations and disrupted breeding cycles essential for species survival. The degradation of riparian zones and loss of suitable spawning grounds have further constrained populations already struggling with pollution impacts.

Conservationists emphasise that protecting the Tamirabharani's endemic aquatic fauna requires comprehensive action, including pollution control measures, habitat restoration, and regulated water management practices. Without intervention, more species face the risk of following Dawkinsia tambraparniei into endangered status, potentially resulting in irreversible losses to India's freshwater biodiversity.