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Replacing trip limits with individual transferable quotas: implications for discarding


  • Branch, Trevor A.
  • Rutherford, Kate
  • Hilborn, Ray


In the British Columbia groundfish fishery (BC fishery), full observer coverage and the accounting of discard mortality of marketable fish in landing limits resulted in low discard fractions. When individual transferable quotas (ITQs) were additionally introduced, total discard fractions declined for most species, and marketable discard fractions declined from 0.20% to 0.10%, after an adjustment period. In contrast, the US West Coast groundfish fishery, which is regulated by 2-monthly landing limits, has higher discard fractions (31-43% vs. 14-19% for BC). The BC experience suggests that full observer coverage, ITQs, and mortality accounting would reduce West Coast discarding fractions, but severe catch restrictions on overfished West Coast species may limit such reductions.

Suggested Citation

  • Branch, Trevor A. & Rutherford, Kate & Hilborn, Ray, 2006. "Replacing trip limits with individual transferable quotas: implications for discarding," Marine Policy, Elsevier, vol. 30(3), pages 281-292, May.
  • Handle: RePEc:eee:marpol:v:30:y:2006:i:3:p:281-292

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    Cited by:

    1. Morandeau, G. & Macher, C. & Sanchez, F. & Bru, N. & Fauconnet, L. & Caill-Milly, N., 2014. "Why do fishermen discard? Distribution and quantification of the causes of discards in the Southern Bay of Biscay passive gear fisheries," Marine Policy, Elsevier, vol. 48(C), pages 30-38.
    2. repec:eee:ecomod:v:220:y:2009:i:23:p:3404-3412 is not listed on IDEAS
    3. Matson, Sean E. & Taylor, Ian G. & Gertseva, Vladlena V. & Dorn, Martin W., 2017. "Novel catch projection model for a commercial groundfish catch shares fishery," Ecological Modelling, Elsevier, vol. 349(C), pages 51-61.
    4. Veiga, Pedro & Pita, Cristina & Rangel, Mafalda & Gonçalves, Jorge M.S. & Campos, Aida & Fernandes, Paul G. & Sala, Antonello & Virgili, Massimo & Lucchetti, Alessandro & Brčić, Jure & Villasante, Seb, 2016. "The EU landing obligation and European small-scale fisheries: What are the odds for success?," Marine Policy, Elsevier, vol. 64(C), pages 64-71.
    5. Lawrence J. White, 2006. "The Fishery as a Watery Commons: Lessons from the Experiences of Other Public Policy Areas for US Fisheries Policy," Working Papers 06-18, New York University, Leonard N. Stern School of Business, Department of Economics.


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