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Larval life history strategies of sub-tropical southern African estuarine brachyuran crabs and implications for tidal inlet management
Papadopoulos, I.; Wooldridge, T.H.; Newman, B.K. (2002). Larval life history strategies of sub-tropical southern African estuarine brachyuran crabs and implications for tidal inlet management. Wetlands Ecol. Manag. 10(3): 249-256. hdl.handle.net/10.1023/A:1020183931789
In: Wetlands Ecology and Management. Springer: Den Haag; Dordrecht; Hingham, MA; Amsterdam. ISSN 0923-4861, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    crab larvae estuary management recruitment South Africa tidal exchange

Authors  Top 
  • Papadopoulos, I., more
  • Wooldridge, T.H.
  • Newman, B.K.

Abstract
    Soon after hatching the larvae of many estuarine crabs migrate from estuaries to adjacent coastal waters soon, where larval development is completed before the post larval stages recruit to estuaries to settle. This study investigated the larval flux of several brachyuran crabs resident within a subtropical estuary on the east coast of South Africa. Plankton sampleswere collected over two intensive sampling periods during the spring of1997 (19 days) and the summer of 1998 (26 days). Larvae were releasedmaximally when high tide within the estuary was crepuscular, whilerecruitment occurred during nocturnal flood tides, with peak abundanceson the maximum amplitude nocturnal flood tides. The data are discussedin relation to freshwater inflow problems facing South African estuaries andthe active management of the tidal inlets of affected systems.

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