The Hindu (Kochi)

CMFRI achieves breakthrou­gh in captive breeding of golden trevally

- (Gnathanodo­n

The Central Marine Fisheries Research Institute (CMFRI) has announced a breakthrou­gh in captive breeding of the high-value marine Œsh golden trevally, which is a potential candidate species for sea farming with growing market demand for consumptio­n and ornamental purpose.

A communicat­ion from the CMFRI said it had successful­ly developed seed production technology for the species speciosus), a developmen­t expected to open up a new avenue for sustainabl­e seafood production and boost India’s maricultur­e activities, including sea cage farming. Scientists at the CMFRI’s Visakhapat­nam regional centre achieved successful bloodstock developmen­t, captive breeding, and larval rearing of the Œsh after Œve years of research.

Golden trevally or golden king Œsh is an ideal candidate species for maricultur­e (marine aquacultur­e) owing to its faster growth rate, good meat quality, and huge market demand. The farm-gate value of the Œsh is ₹400 to ₹500 a kg.

The CMFRI said it was a reef-associated Œsh and lives in the company of larger Œshes like skates, sharks, and groupers.

Juveniles of the species act as pilots for sharks. It is a silver grey Œsh with yellowish colouratio­n on the belly with scattered black patches, yellow Œns, and a black tail.

The juveniles are more golden in colour with the black bands giving them a very attractive appearance, a trait attractive to aquarium keepers. As an ornamental variety, the Œsh is priced between ₹150 to ₹250 per piece.

In 2019

A team of scientists at the Visakhapat­nam centre of the CMFRI led by Ritesh Ranjan, senior scientist, began eŸorts for seed production of the Œsh in 2019. The latest achievemen­t was a milestone in the Indian aquacultur­e sector, said the CMFRI. Golden trevally lands predominan­tly in reef area Œshing grounds in Tamil Nadu, Puducherry, Kerala, Karnataka, and Gujarat.

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Golden trevally

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