Growth and biometric relationship of the Indian pearl oyster Pinctada fucata (Gould) under long term onshore rearing system

Rao, G Syda (2007) Growth and biometric relationship of the Indian pearl oyster Pinctada fucata (Gould) under long term onshore rearing system. Journal of the Marine Biological Association of India, 49 (1). pp. 51-57.

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Abstract

Pinctada fucata, the Indian pearl oyster was cultured under land-based system for more than seven years. The maximum growth in length and weight was reached at about 3 years. The oysters were suitable for first seeding from about 9 months. The scope for producing larger pearls was more from about 2 years. They attained maturity from 6 months onwards and spawning was found to be continuous until the age of five years. After 3 years, they lost the power of attachment with byssal threads. After 5 years the gonads shrank in size with no development of gametes and pearls of 5-6 mm size could be produced from these oysters. However, the mantle (‘Saibo’) was active and capable of producing pearl sac and suitable for implantation. The length-weight, length-thickness and weight-thickness relationships were derived and presented. The weight was important, which is directly related to thickness and ultimately useful for planning the size of beads for seeding operations

Item Type:Article
Uncontrolled Keywords:Pinctada fucata; age and growth; length-weight relationship; Saibo
Subjects:Molluscan Fisheries > Pearl oyster
Divisions:CMFRI-Cochin > Marine Capture > Molluscan Fisheries
ID Code:2114
Deposited By:Dr. V Mohan
Deposited On:06 Aug 2010 14:38
Last Modified:06 Aug 2010 14:38

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