International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

An initiative to Conserve Pearl oyster (Pinctada fucata) population in the Gulf of Kachchh through Sea ranching of Hatchery produced spat

    , , , ,

Author Affiliations

  • 1Fisheries Research Station, Junagadh Agricultural University, Sikka- 361140, INDIA
  • 2Fisheries Research Station, Junagadh Agricultural University, Sikka- 361140, INDIA
  • 3Fisheries Research Station, Junagadh Agricultural University, Sikka- 361140, INDIA
  • 4Office of Chief Conservator of Forest, Marine National Park, Forest Department, Jamnagar- 36100, INDIA
  • 5Office of Chief Conservator of Forest, Marine National Park, Forest Department, Jamnagar- 36100, INDIA

Res. J. Marine Sci., Volume 1, Issue (1), Pages 2-5, April,10 (2013)

Abstract

Pearl oyster population in Gulf of Kachchh has declined considerably in the last two-three decades due to industrialization, mining activity, illegal fishing and effect of climate change and need some serious attempt to conserve them in their natural bed. Study aims conservation of pearl oyster through hatchery production and sea ranching of spat at selected sites. Standard methods were used for hatchery culture and selection of potential sites for sea ranching. Out of three induced spawning attempts two were successful to produce fertilized eggs. Spat production was achieved at average survival rate of 42.5%. The key element of present study was sea ranching of 1, 50,000 spats (2.1 to 3.2 mm) sea ranched in suitable habitat at eight selected sites of study area. The rate of spat release was 5-10/ m2 .

References

  1. Rao K.V. and Rao K.S., Pearl Oysters, In: Nair, R. V. and Rao, K. S. (Eds.) The commercial molluscs of India, Bull. Cent. Mar. Fish. Res. Inst., Cochin, 25, 84–105 (1974)
  2. Easwaran C.R., Narayanan K.R. and Michael M.S., Pearl Fisheries of the Gulf of Kutch, J. Bombay Nat. Hist. Soc., 66(2), 338-344 (1969)
  3. Hornell J., The Marine Resources of OkhamandaI, In: Report to the Government of Baroda on the Marine Zoology of OkhamandaI in Kattiawar, Part I, Williams and Norgate, London, 1-17 (1909)
  4. Devanesan D.W. and Chidambaram K., Results obtained at the pearl oyster farm, Krusadai Island, Gulf of Mannar and their application to problems relating to pearl fisheries in the Gulf of Mannar, Part I, Contr.Mar. Biol. St., Krusadai Island, Gulf of Mannar, 4, 1-89 (1956)
  5. Dharmaraj S., Velayudhan T.S., Chellam A., Victor A.C.C. and Gopinathan C.P., Hatchery production of pearl oyster spat; Pinctada fucata, Special Publication, Cent. Mar. Res. Inst., Cochin, 49, 6-22 (1991)
  6. Chellam A., Dharmaraj S. and Victor A.C.C., Experimental sea-ranching of pearl oyster in the Gulf of Mannar, In: Alagarswami, K. (Eds.) Pearl Culture. Bull. Cent. Mar. Fish. Res. Inst., Cochin, 39, 90-91 (1987)
  7. James P.S.B.R., Progress of research on sea ranching at the CMFRI, Marine Fisheries Information Service, Technical and Extension Series, 105, 1-5 (1990)
  8. Gokhale S.V., Easwaran C.R. and Narsimhan R., Growth rate of the pearl oyster, Pinctada pinctada in the Gulf of Kutch with a note on the pearl fishery of 1953, J. Bombay Nat. Hist. Soc., 52(1), 124-136 (1954)
  9. Narayanan K.R. and Michael M.S., On the relation between age and linear measurements of the pearl oyster Pinctada vulgaris (Schumacher) of the Gulf of Kutch, J. Bombay Nat. Hist. Soc., 65(2), 444-452 (1968)
  10. Narayanan K.R., Preliminary observations, on the breeding of pearl oysters, Pinctada fucata (Gould) of the Gulf of Kutch, J. Bombay Nat. Hist. Soc., 71(1), 32-40 (1974)
  11. Alagarswami K., Dharmaraj S., Velayudhan T.S. and Chellam A., Hatchery technology for Pearl Oyster production, In: Alagarswami, K. (Eds.) Pearl Culture, Bull. Cent. Mar. Fish. Res. Inst., Cochin, 39, 62-71 (1987)
  12. Alagarswami K., Dharmaraj S., Velayudhan T.S. and A. Chellam, Embryonic and early development of pearl oyster Pinctada fucata (Gould), Proc. Symp. Coastal Aquaculture, Mar. Biol. Ass. India, 2, 598-603 (1983a)
  13. Alagarswami K., Dharmaraj S., Velayudhan T.S. and Chellam A., Larval rearing and production of spat of pearl oyster Pinctada fucata (Gould), Aquaculture, 34, 287-301 (1983b)
  14. Victor A.C.C., Chellam A., Dharmaraj S., Velayudhan T.S., Srinivasagam K., Dasman F.A., Soosai F., Rajan V., Jesuraj N. and Shanmugasundaram K., Sea ranching of pearl oyster, Marine Fisheries Information Service, Technical and Extension Series, 124, 8-13 (1993)
  15. Rao P.V., Sea ranching fisheries - an effective system for augmentation and conservation of exploited resources, Proceedings of the Seminar on Fisheries - A Multibillion Dollar Industry, Madras, 21-22 (1996)