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Crustacean Fisheries Division (CFD)

Assessment of fishery resource characteristics of the penaeid shrimps of the east coast of India
Andhra Pradesh (11.22%) and Tamil Nadu (10.91%) contributed maximum landings of penaeid shrimps along the east coast followed by Orissa (3.44%), West Bengal (2.13%) and Pondichery (0.22%).
Over-dominance of juveniles below the size of 100 mm in M. monoceros supporting nearly 85% of the fishery is a disturbing trend in the trawl fishery at Kakinada.
Total non-penaeid prawn production in Gujarat and Maharashtra amounted to 125556 t in 2000 registering a decline of 6.4% over the previous year. With a statewise production of 42348 t in Maharashtra and 83208 t in Gujarat, fishery declined by 4.3% and 7.4% respectively over the previous year
Acetes spp. (74%) and Nematopalaemon tenuipes (25%) together accounted for almost the entire fishery in dol net operations at Versova, the rest being shared by Exhippolysmata ensirostris

Investigations on the Non-penaeid Shrimp Fishery of North West Coast of India
Maharashtra and Gujarat account for the bulk of the landings
Total non-penaeid prawn production in Gujarat and Maharashtra amounted to 125556 t in 2000 registering a decline of 6.4% over the previous year.
Acetes spp. (74%) and Nematopalaemon tenuipes (25%) together accounted for almost the entire fishery in dol net operations at Versova, the rest being shared by Exhippolysmata ensirostris

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Total landing of Non-penaeid Prawns in India during 1961-1999


Investigations on exploitation management and conservation of the lobster and crab resources of india
The provisionally estimated landing of lobsters in the country in the year 2000 was 2387 t as against 2093 t in the previous year.
Thenus orientalis dominates the lobster fishery at Veraval, Panulirus polyphagus at Mumbai, Panulirus homarus at Calicut and Vizhinjam, Puerulus sewelli (deep sea lobster) and Neendakara, Panulirus ornatus at Tuticorin and Thenus orientalis at Chennai.

Some of the commercially important crab species

Charybdis ferriata

Portunus pelagicus

Portunus sanguinolentus

The provisionally estimated landing of crabs in the year 2000 was 48,259 t as against 27,547 t in 1999. Portunus sanguinolentus, P. pelagicus and Charybdis cruciata contribute to the fishery.
Cruciata predominates the fishery for crabs at Veraval, Mumbai and Cochin, P. pelagicus at Karwar, Calicut, Tuticorin and Mandapam and P. sanguinolentus at Mangalore, Chennai and Kakinada
Crab landings in India (2000)
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Total landings of Crabs in India during 1975-1999
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Some of the commercially important species of lobsters

Panulirus ornatus

Panulirus homarus

Puerulus sewelli

Thenus orientalis

535 t of deep sea lobster, Puerulus sewelli, were landed from the offshore waters of Kerala during January-March and October-December, 2000.
Maximum landing of lobsters (69% in 2000) is reported from the northwest coast of the country. Panulirus polyphagus and Thenus orientalis contribute to the fishery.
Total landing of Lobsters in India during 1975-1999
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Lobster landings in India (2000)
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Development of artificial reefs
A centrally sponsored scheme “Development of artificial reefs along the Tamil Nadu coast” was initiated at Tuticorin. 10 triangular modules, each module consisting of 3 plates were released in May 2000. 73 triangular modules were released in the sea off Tharavaikulam at a depth of 6 m in October 2000.
At Kozhikode, an artificial reef of 10000 sq. m. was developed off Dharmadom in Kannur District at a depth of 12-15 m on the south western side of Dharmadom island.

Artificial reefs are used to increase the fisheries potential of coastal waters

A view of the models used for installing the artificial reef off Poovar

The fishermen launch reef modules at the installation site.

Artificial Reef Modules, prior to installation, in the Thrikkodi beach

Reefs are installed with fishermen participation

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