Marine and Freshwater Research Marine and Freshwater Research Society
Advances in the aquatic sciences

Early Life History of Pomatomus saltatrix off the East Coast of South Africa

LE Beckley and AD Connell

Marine and Freshwater Research 47(2) 319 - 322
Published: 1996


Several authors have stated that southward transport of the early life-history stages of Pomatomus saltatrix occurs by passive drift in the Agulhas Current, a strong western boundary current which flows southwards following the edge of the continental shelf of eastern South Africa. However, an extensive study of the ichthyoplankton occurring in shelf and Agulhas Current waters from 29ºS to 34ºS located P. saltatrix larvae only in the shelf waters off KwaZulu-Natal. Sampling of fish eggs in the inshore shelf waters 60 km south of Durban on a regular basis has confirmed spawning of P. saltatrix to occur in this region. The data thus suggest that larval dispersal might occur in shelf waters where, although strongly influenced by the Agulhas Current, southward transport is not as rapid.

© CSIRO 1996

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