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Package of practices for cultured pearl production was developed and standardised.
15 species of commercially important crustaceans were bred under captivity and their eggs and larvae reared successfully.
Rendered consultancy service to the government and private organisations in installation and management of shrimp hatcheries.
Low cost shrimp feed Mahima was developed and the technology was successfully transferred to the coastal fisherwomen.
Package of practices for edible oyster culture, green and brown mussel was developed.
Hatchery technology for mass production of the seed of pearl oyster, edible oyster, mussel and clams was developed.
Developed technology for artificial insemination of tiger prawn.
Developed the technology for land based pearl culture and production.
Longline mussel culture technology was developed with the active involvement of fishermen
Culture of seaweeds in open coastal waters was undertaken and the commercial feasibility was demonstrated
Developed technology packages for the culture of marine shrimps, crabs, mussels, edible oysters, clams, sea weeds and sea cucumbers.
Developed technology for the breeding and culture of marine ornamental fishes like clown fish, and sea horse.
Technologies for the mass production of live feed organisms have been developed.
Developed new food formulation for culture of shell fishes
Genetic differentiation of commercially important stocks using DNA finger printing
Developed DNA finger prints for fish and shell fish pathogens

Seed Production
Experimental Farming
Tagging of Prawns

Backyard shrimp hatchery at CMFRI, Mandapam

Larval rearing tanks

Post larvae of Penaeus semisulcatus produced at Mandapam hatchery

A view of harvested P.semisulcatus cultured at Mandapam shrimp farm

Seed Production
Broodstock Development
Farming & Sea Ranching of Spiny & sand Lobsters

Successful maturation and breeding of the spiny lobster Panulirus homarus was achieved by regulation of light intensity (500 lux) and on feeding with green mussel
Fecundity, egg quality and percent hatch of captive lobsters is higher than broodstock obtained from the wild. Feeding phyllosoma larvae with Artemia nauplii hatched out from infected cysts leads to protozoan infestation. Treatment of cysts with chlorine at 200 ppm for 10 minutes keeps the larvae free from infection.
Delay in feeding of phyllosoma larvae by 24 hrs. after hatching may result in delayed moulting and low survival.
Short term fattening of lower priced smaller grade lobster to a higher priced larger grade is profitable

Cultured lobsters

Phyllosoma larvae of lobster

Puerulii of spiny lobster Panulirus polyphagus

Post puerulii of the lobster P. polyphagus

Lobster culture tanks view from the lobster hatchery at Calicut

Mariculture of crabs
Scylla tranquebarica seeds have been successfully produced in the hatchery. Seeds are grown in captive condition for domestication and controlled reproduction. Portunus pelagicus have been searanched.
Experimental farming using hatchery produced seeds of P. pelagicus yielded encouraging results. Crabs attained 100-120 g in 135 days with a survival of 33%.

Mud crabs after fattening

Scylla tranquebarica

Baby crab of Portunus pelagicus