Article

 

Which design elements of individual quota fisheries help to achieve management objectives? Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/d791sh95k

Descriptions

Attribute NameValues
Creator
Abstract
  • Individual quota (IQ) management systems in commercial marine fisheries are highly diverse, differing in the security, durability and exclusivity of the harvesting privilege and the transferability of quota units. This diversity in the degree of harvest rights may influence the effectiveness of IQ fisheries to meet management objectives. We conducted a global meta-analysis of 167 stocks managed under IQs to test whether the strength of harvest rights impacts the conservation status of stocks in terms of catch, exploitation rate and biomass relative to management targets. We used non-parametric methods to assess non-linear relationships and linear regression models to explicitly consider interactions among predictors. Most IQ fisheries consistently met fleet-wide quota limits (94% of stocks had recent catches below or within 10% of quotas), but only 2/3 of IQ fisheries adhered to sustainable management targets for biomass and exploitation rate (68% of stocks had exploitation rates below or within 10% of targets and 63% of stocks had biomass above or within 10% of biomass targets). Strikingly, when exclusivity of the harvesting privilege was low, exploitation rates depended on whether IQ implementation was industry-driven (exploitation below targets) or government-mandated (exploitation above targets). At high levels of exclusivity, exploitation rates converged to just below management targets. Transferability of quota units was associated with stock biomass closer to and slightly above target levels than stocks with non-transferable quota. However, regional differences had the strongest effect on biomass, suggesting that other management or biological attributes of regional fishery systems have greater influence on marine populations.
  • Keywords: ITQ, marine conservation, maximum sustainable yield, property rights, random forests, Fisheries management
Resource Type
DOI
Date Available
Date Issued
Citation
  • Melnychuk, M. C., Essington, T. E., Branch, T. A., Heppell, S. S., Jensen, O. P., Link, J. S., ... & Smith, A. D. (2016). Which design elements of individual quota fisheries help to achieve management objectives?. Fish and Fisheries, 17(1), 126-142. doi:10.1111/faf.12094
Journal Title
Journal Volume
  • 17
Journal Issue/Number
  • 1
Rights Statement
Funding Statement (additional comments about funding)
  • Funding was provided by the Lenfest Oceans Program, a NSF/NOAA CAMEO grant and a NSERC Banting Postdoctoral Fellowship.
Publisher
Peer Reviewed
Language
Replaces

Relationships

Parents:

This work has no parents.

Items