Environmental Biology of Fishes

, Volume 4, Issue 4, pp 349–362

A proliferation of small sharks in the shore-based Natal sport fishery

  • Rudy P. van der Elst
Main article

DOI: 10.1007/BF00005524

Cite this article as:
van der Elst, R.P. Environ Biol Fish (1979) 4: 349. doi:10.1007/BF00005524

Synopsis

Twenty-one years of catch returns from the shore-based Natal sport fishery have been processed in order to detect trends in the composition of anglers' catches. Results presented indicate that there have been substantial changes, especially following a much increased abundance of juvenile sharks in the last decade. It is postulated that the most likely cause for this proliferation is the removal of large predatory sharks through protective gill netting.

Keywords

Carcharhinus obscurus Rhizoprionodon acutus Gill netting Angling Catch composition Predation Juveniles Feeding 

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Copyright information

© Dr. W. Junk Publishers 1979

Authors and Affiliations

  • Rudy P. van der Elst
    • 1
  1. 1.Oceanographic Research InstituteDurbanSouth Africa

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