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Aspects of the biology of the abalone Haliotis midae (Linne 1758) on the east coast of South Africa. 2. Reproduction
Citation
Wood, AD and Buxton, CD, Aspects of the biology of the abalone Haliotis midae (Linne 1758) on the east coast of South Africa. 2. Reproduction, South African Journal of Marine Science, 17 pp. 69 - 78. ISSN 0257-7615 (1996) [Refereed Article]
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Copyright Statement
Copyright © 1996 National Inquiry Services Centre (NISC)
Official URL: http://www.nisc.co.za/
Abstract
The South African abalone Haliolis midae is a dioecious, broadcast spawner with a high fecundity. Histological
examination and gonad bulk indices showed that individuals are iteroparous, asynchronous spawners, and that
the breeding season extends from March through to October, spawning peaking between April and June. The
structure of the ovary and testis, and the process of gametogenesis are typical of haliotid species. Males and females
spawn partially or totally, with atresia of residual gametes occurring after spawning. No resting stage was
apparent and gonadal recrudescence began immediately after spawning. Sexual maturity was first attained at
20-25 mm shell width, and the size at 50% sexual maturity was attained at approximately 35 mm shell width in
all of the populations studied, a size considerably lower than that of previously studied West Coast populations
of H. midae.
Item Details
Item Type: | Refereed Article |
---|---|
Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Fisheries sciences |
Research Field: | Fisheries sciences not elsewhere classified |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the environmental sciences |
UTAS Author: | Buxton, CD (Professor Colin Buxton) |
ID Code: | 48416 |
Year Published: | 1996 |
Web of Science® Times Cited: | 17 |
Deposited By: | TAFI - Marine Research Laboratory |
Deposited On: | 2007-08-01 |
Last Modified: | 2010-01-20 |
Downloads: | 8 View Download Statistics |
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