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Global fishery prospects under contrasting management regimes
Costello, C.; Ovando, D.; Clavelle, T.; Strauss, C.K.; Hilborn, R.; Melnychuk, M.C.; Branch, T.A.; Gaines, S.D.; Szuwalski, C.S.; Cabral, R.B.; Rader, D.N.; Leland, A. (2016). Global fishery prospects under contrasting management regimes. Proc. Natl. Acad. Sci. U.S.A. 113(18): 5125-5129. https://dx.doi.org/10.1073/pnas.1520420113
In: Proceedings of the National Academy of Sciences of the United States of America. The Academy: Washington, D.C.. ISSN 0027-8424, more
Peer reviewed article  

Available in  Authors 

Keyword
    Marine
Author keywords
    fishery recovery fishery reform rights-based fishery management bioeconomic model

Authors  Top 
  • Costello, C.
  • Ovando, D.
  • Clavelle, T.
  • Strauss, C.K.
  • Hilborn, R.
  • Melnychuk, M.C.
  • Branch, T.A.
  • Gaines, S.D.
  • Szuwalski, C.S.
  • Cabral, R.B.
  • Rader, D.N.
  • Leland, A.

Abstract
    Data from 4,713 fisheries worldwide, representing 78% of global reported fish catch, are analyzed to estimate the status, trends, and benefits of alternative approaches to recovering depleted fisheries. For each fishery, we estimate current biological status and forecast the impacts of contrasting management regimes on catch, profit, and biomass of fish in the sea. We estimate unique recovery targets and trajectories for each fishery, calculate the year-by-year effects of alternative recovery approaches, and model how alternative institutional reforms affect recovery outcomes. Current status is highly heterogeneous—the median fishery is in poor health (overfished, with further overfishing occurring), although 32% of fisheries are in good biological, although not necessarily economic, condition. Our business-as-usual scenario projects further divergence and continued collapse for many of the world’s fisheries. Applying sound management reforms to global fisheries in our dataset could generate annual increases exceeding 16 million metric tons (MMT) in catch, $53 billion in profit, and 619 MMT in biomass relative to business as usual. We also find that, with appropriate reforms, recovery can happen quickly, with the median fishery taking under 10 y to reach recovery targets. Our results show that commonsense reforms to fishery management would dramatically improve overall fish abundance while increasing food security and profits.

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