Aquaculture Africa 2021

March 25 - 28, 2022

Alexandria, Egypt

ABALONE RANCHING IN SOUTH AFRICA RESTORES A WILD Haliotis midae POPULATION TO SUSTAINABLE HARVEST

 

 Peter Britz*1, Andrew Witte, Paul-Pierre Steyn

 

Rhodes University, Department of Ichthyology and Fisheries Science, Grahamstown, South Africa

p.britz@ru.ac.za

 



 The abalone aquaculture industry in South Africa has made it possible possible to restore wild abalone populations using hatchery reared seed. We present results of an abalone  ranching and stock enhancement  pilot project  which conducted to restore an abalone (Haliotis midae ) population  which was  depleted by poaching. T he South African fisheries authority  granted a right to a private company to reseed an 18km ranching zone at  Port Elizabeth, South Africa.  Approximately 3 million seed abalone were stocked to between 2014 and 2019, with resource protection provided by private security. A research survey conducted in January 2018 indicated that on commercially seeded sites the average density increased from 0.3 abalone per m2 in 2014 to 1.0 abalone per m2, with the hatchery seed contributed more than 50% of the abalone found on  seeded sites.  Poaching fishing effort was significantly reduced by the presence of the private security and successful prosecutions of syndicates by the state.  Based on a stock assessment of the resource, an initial harvest of 33 tons was granted by the fisheries authority in 2021. The key to the success of the project is the TURF (Territorial User Rights Fishery) rights system which incentivizes private sector investment in stock rebuilding by means of exclusive and secure long-term rights. The success of the model has profound implications for the management and restoration of abalone resources in South Africa.