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Quick scan: new catfish species found in Manipur
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A catfish that clings to rocks in torrents: the Manipur discovery behind GS3 biodiversity questions
A new hill-stream catfish is described from Manipur.
Why it matters: general awareness
What you need to know
2 মিনিট
Scientists have identified a new rare catfish, Exostoma nasibarbatum, from Manipur during an ichthyological survey of the Bupal stream.
The fish belongs to the glyptosternine group of hill-stream catfishes adapted to fast-flowing water.
Such finds underline the freshwater biodiversity of the North-East.
সূত্র: Topper IAS editorial (PIB / The Hindu / Indian Express)
মূল তথ্য
Remember these
- New species: Exostoma nasibarbatum, a rare hill-stream catfish described from Manipur
- Found during an ichthyological survey of the Bupal stream in Manipur
- It belongs to the glyptosternine group of catfishes adapted to fast-flowing hill streams
- Glyptosternines typically have adhesive structures that let them cling to rocks in swift water
- The find highlights the freshwater biodiversity of North-East India, part of the Indo-Burma hotspot
প্রিলিমস · মেইনস
How the exam will ask it
প্রিলিমস
- Hill-stream catfishes of the glyptosternine group are adapted to fast-flowing, well-oxygenated water.
- Exostoma nasibarbatum is a newly described catfish species reported from Manipur.
- North-East India falls within the Indo-Burma biodiversity hotspot, noted for high freshwater fish diversity.
মেইনস
GS3 (Environment and Biodiversity): new species discoveries in the North-East show how much freshwater biodiversity is still undocumented. Threats such as dams, sand mining, pollution and habitat loss to hill streams call for protection under the Biological Diversity Act, 2002 and community-based conservation. The way forward is systematic taxonomic surveys, protection of stream habitats and the inclusion of freshwater species in conservation planning.
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