Context:
Researchers have recently discovered two new fish species namely Garra zubzaensis and Psilorhynchus kosygini, of torrent minnows in the pristine rivers of Nagaland.
Relevance:
Facts for Prelims
About New Fish Species:
The new fish species described here are torrent minnows, belonging to the genus Psilorhynchus under the family Psilorhynchidae. Torrent minnows are freshwater species usually found in fast-flowing streams with strong currents such as rivers and mountain streams.
Garra zubzaensis:
- Location: Discovered in the Zubza River, a tributary of the Brahmaputra River in Kohima district.
- Habitat: The river’s gravel, cobbles, and sandy substrate offer a perfect environment for these benthic species.
- Adaptations: Garra zubzaensis is well-suited for living in fast-flowing rocky streams. They use their gular discs (sucker-like structures) to cling to surfaces and feed.
Psilorhynchus kosygini:
- Location: Found in the Tepuiki River, a tributary of the Barak River in Nagaland’s Peren district.
- Genus Origin: Psilorhynchus kosygini belongs to a genus primarily found in South Asia and Southeast Asia.
- Habitat: This species thrives in the shaded, fast-flowing waters of the Tepuiki River, favoring its gravelly and rocky substrate.
-Source: The Hindu
