Blar i forfatter "Steyn, Erika"

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    • Effect of rotational harvesting on the size composition of Cape rock oysters Striostrea margaritacea on the east coast of South Africa 

      Steyn, Erika; Groeneveld, Johan C.; Santos, Antonio Jorge Fonseca Antunes (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-11)
      A commercial fishery for the Cape rock oyster Striostrea margaritacea along the north coast of KwaZulu-Natal, South Africa (western Indian Ocean), follows a 4-year rotational cycle, with each harvest year followed by 3 fallow years across four harvest zones. We analysed reported harvesting effort and catch information, and fishery-independent oyster size composition data collected over 18 years (Feb ...

    • Trends in a recreational fishery for mussels in eastern South Africa, based on postal, telephone and online surveys 

      Steyn, Erika; Groeneveld, Johan C.; Santos, Jorge; Kruger, Alke; Mselegu, Xolani I.; Schleyer, Michael H. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-18)
      The intertidal brown mussel <i>Perna perna</i> is targeted by recreational and subsistence fisheries in KwaZulu-Natal, South Africa. The recreational mussel fishery is monitored by off-site postal, telephone and online questionnaire surveys, assessed in this study. Trends in fisher avidity (proportion of permit holders that went fishing), mean number of outings undertaken per quarter year and catch ...