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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 .

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