- Why in news
- On 25 February 2026, PIB reported a decade of scientific river ranching by ICAR-CIFRI under the Namami Gange Programme. It cites 205.5 lakh indigenous fish seeds released through 169 programmes between 2017 and 2025.
- What it is
- River ranching is the release of hatchery-bred fish seed into a river to rebuild depleted native stocks. Under Namami Gange, ICAR-CIFRI breeds seed from wild Ganga brooders so that native genetic lines are kept. The aim is to restore ecological balance and support fishing livelihoods, not only to add fish.
- Seed source
- Seed was bred artificially from wild brooders collected from the Ganga, to protect native genetic lines.
- Species covered
- Indian Major Carps, Mahseer, native catfishes, Chitala and freshwater scampi.
- Inland capture fish output
- India is the world's top producer of inland capture fish at 1.89 million tonnes, ahead of China.
- ICAR-CIFRI
- Established in March 1947 at Barrackpore, West Bengal; it is an ICAR institute for inland fisheries research.
Don’t confuse with River ranching vs cage culture: Ranching releases seed into open river waters to rebuild wild stocks. Cage culture grows fish in enclosures for production and profit.
Don’t confuse with ICAR-CIFRI vs NMCG: CIFRI is the ICAR research institute that carried out the ranching. NMCG is the body that runs Namami Gange.
Environment: Prelims tests bodies, programmes and the law behind them; Mains asks why plans fall short.
Why it matters
- Rebuilds native fish stocks and riverine biodiversity while keeping genetic integrity.
- Supports livelihoods of fishing communities and adds a science-based, measurable part to river rejuvenation.
Problems
- Ranching does not fix the causes of decline: habitat loss, altered flows, pollution and unregulated fishing.
- Effort is uneven: 68% of programmes were in West Bengal and 1% in Uttarakhand, and long-term ecological gains are hard to prove.
Way forward
- Pair stocking with e-flows, pollution control and fishing regulation, and keep long-term monitoring.
- Extend ranching to more stretches, using wild brooders and adaptive management.
Put in your answer
Threats to native fish: Native fish declined due to habitat degradation, altered flow regimes, pollution and unregulated fishing.
- 2015Mains GS3 · Q15Discuss Namami Gange and NMCG, causes of mixed results, and quantum leaps for Ganga.
- 2018Mains GS1 · Q15Define blue revolution; explain problems and strategies for pisciculture development in India.
UPSC’s own questions that come close to this issue, from our Prelims and Mains banks.
No practice question for this one; the card may still help an answer. Why: Lasting conservation topic with numbers, but river ranching is a narrow topic; UPSC has not asked it as a news item in the counts given.
Worth revising until Prelims 2027: most news questions come within two years of the event.