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Ichthyoplankton distribution and dispersal in the Tsitsikamma National Park marine reserve, South Africa
Citation
Tilney, RL and Nelson, G and Radloff, SE and Buxton, CD, Ichthyoplankton distribution and dispersal in the Tsitsikamma National Park marine reserve, South Africa, South African Journal of Marine Science, 17 pp. 1 - 14. 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 nature of ichthyoplankton distribution within the Tsitsikamma National Park marine reserve was investigated
in an attempt to evaluate the potential for export of larvae of commercially and recreationally important
reef species to adjacent, exploited areas. Monthly, inshore ichthyoplankton samples were taken using Bongo
nets over an 18-month period. Sampling sites were located over areas of high-profile reef and sand, Currentmeter
measurements of the area were used to determine current velocity, direction and reversal periodicity.
Statistical analysis of the data was performed independently for larvae from four families: Blenniidae,
Gobiesocidae, Sparidae and Engraulidae. Results suggested that blenniid and gobiesocid larvae practised active
position retention throughout their pelagic phase, while this feature was less defined in sparid and engraulid larval
distribution. Using larval distribution and current-meter information, projected dispersal distances for spa rid
larvae, the family containing the most target commercial and recreational angling species, were estimated. The
results suggest that sparid larvae are exported from the reserve to adjacent, exploited areas.
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: | 48466 |
Year Published: | 1996 |
Web of Science® Times Cited: | 36 |
Deposited By: | TAFI - Marine Research Laboratory |
Deposited On: | 2007-08-01 |
Last Modified: | 2010-01-20 |
Downloads: | 6 View Download Statistics |
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