Answer: River Chalakudy
Notes: Researchers in Kochi developed a captive breeding protocol for the endangered black-collared yellow catfish. This species is endemic to the Chalakudy River in Kerala and has unique genetic traits and a greenish-brown mottled appearance. It coexists with the endangered Horabagrus Nigricollaris and is classified as endangered on the IUCN Red List. The breeding program started in 2020, and the first-generation stock was successfully bred. The protocol supports conservation efforts and ensures biodiversity preservation in the Western Ghats.
