Histological notes on protogynous hermaphroditism in the spinycheek grouper, Epinephelus diacanthus (Valenciennes, 1828)

Rao, A Chandrasekhara and Krishnan, L (2007) Histological notes on protogynous hermaphroditism in the spinycheek grouper, Epinephelus diacanthus (Valenciennes, 1828). Journal of the Marine Biological Association of India, 49 (2). pp. 243-245.

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Abstract

Histological studies on the gonads of Epinephelus diacanthus collected off Quilon and Ratnagiri west coast of India, revealed protogynous hermaphroditism and the presence of seven transitional stages. The transitional gonads were found to be intermixed with the spermatogonia and spermatocytes within the ovarian lamellae. The smallest size of the transitional E. diacanthus was 27.5 cm total length and the largest was 31.4 cm TL. The weight range was 362-430 g. Histologically recognized transitional E. diacanthus showed size related variations from the two geographically different regions

Item Type:Article
Uncontrolled Keywords:Protogynous hermaphroditism; Spinycheek grouper; Epinephelus diacanthus
Subjects:Demersal Fishes > Groupers
Divisions:CMFRI-Cochin > Marine Capture > Demersal Fisheries
ID Code:2150
Deposited By:Dr. V Mohan
Deposited On:09 Aug 2010 16:56
Last Modified:09 Aug 2010 16:56

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