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Marine Protected Areas (MPAs) can benefit fisheries. A 15-year study on the Goukamma MPA showed increased catch rates for roman seabream, with no negative impacts on fishers.

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Area of Science:

  • Marine Ecology
  • Fisheries Science
  • Conservation Biology

Background:

  • Marine Protected Areas (MPAs) are recognized for potential fishery benefits, but empirical evidence is scarce due to limited long-term data.
  • The Goukamma MPA in South Africa was established to protect marine biodiversity and potentially enhance local fisheries.

Purpose of the Study:

  • To assess the impact of the Goukamma MPA on the adjacent Roman (Chrysoblephus laticeps) fishery.
  • To provide empirical evidence of fishery benefits following MPA implementation.

Main Methods:

  • Utilized a 15-year time series of nation-wide, spatially referenced catch and effort data.
  • Analyzed catch-per-unit-effort (CPUE) trends for Roman before and after the establishment of the Goukamma MPA.
  • Compared CPUE changes in the vicinity of the MPA with broader species distribution trends.

Main Results:

  • Roman-directed CPUE near the Goukamma MPA increased immediately post-establishment, contrary to species-wide trends.
  • CPUE continued to rise, doubling pre-MPA levels after 10 years, aligning with expected larval export timelines.
  • No evidence of a systematic decrease in total catch or increased fishing travel distances for the fleet was found.

Conclusions:

  • The Goukamma MPA provided significant fishery benefits, evidenced by rapidly increasing catch rates for Roman seabream.
  • MPA implementation led to demonstrable positive outcomes for the adjacent fishery without measurable disadvantages to fishers.
  • This study offers rare empirical support for the positive fishery impacts of MPAs.