Evaluating sustainability of fisheries bycatch mortality for marine megafauna: a review of conservation reference points for data-limited populations Public Deposited

http://ir.library.oregonstate.edu/concern/articles/ng451k42x

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article is copyrighted by the Foundation for Environmental Conservation and published by Cambridge University Press. It can be found at:  http://journals.cambridge.org/action/displayJournal?jid=ENC.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Fisheries bycatch threatens populations of marine megafauna such as marine mammals, turtles, seabirds, sharks and rays, but fisheries impacts on non-target populations are often difficult to assess due to factors such as data limitation, poorly defined management objectives and lack of quantitative bycatch reduction targets. Limit reference points can be used to address these issues and thereby facilitate adoption and implementation of mitigation efforts. Reference points based on catch data and life history analysis can identify sustainability limits for bycatch with respect to defined population goals even when data are quite limited. This can expedite assessments for large numbers of species and enable prioritization of management actions based on mitigation urgency and efficacy. This paper reviews limit reference point estimators for marine megafauna bycatch, with the aim of highlighting their utility in fisheries management and promoting best practices for use. Different estimators share a common basic structure that can be flexibly applied to different contexts depending on species life history and available data types. Information on demographic vital rates and abundance is required; of these, abundance is the most data-dependent and thus most limiting factor for application. There are different approaches for handling management risk stemming from uncertainty in reference point and bycatch estimates. Risk tolerance can be incorporated explicitly into the reference point estimator itself, or probability distributions may be used to describe uncertainties in bycatch and reference point estimates, and risk tolerance may guide how those are factored into the management process. Either approach requires simulation-based performance testing such as management strategy evaluation to ensure that management objectives can be achieved. Factoring potential sources of bias into such evaluations is critical. This paper reviews the technical, operational, and political challenges to widespread application of reference points for management of marine megafauna bycatch, while emphasizing the importance of developing assessment frameworks that can facilitate sustainable fishing practices.
Resource Type
DOI
Date Available
Date Issued
Citation
  • J. E. MOORE, K. A. CURTIS, R. L. LEWISON, P. W. DILLINGHAM, J. M. COPE, S. V. FORDHAM, S. S. HEPPELL, S. A. PARDO, C. A. SIMPFENDORFER, G. N. TUCK and S. ZHOU (2013). Evaluating sustainability of fisheries bycatch mortality for marine megafauna: a review of conservation reference points for data-limited populations. Environmental Conservation, 40, pp 329-344. doi:10.1017/S037689291300012X.
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-03-18T18:14:50Z No. of bitstreams: 1 HeppellSelinaFisheriesWildlifeEvaluatingSustainabilityFisheries.pdf: 490693 bytes, checksum: daf830e55f1e5070f005ff00aeae371f (MD5)
  • description.provenance : Made available in DSpace on 2014-03-18T18:15:47Z (GMT). No. of bitstreams: 1 HeppellSelinaFisheriesWildlifeEvaluatingSustainabilityFisheries.pdf: 490693 bytes, checksum: daf830e55f1e5070f005ff00aeae371f (MD5) Previous issue date: 2013-12
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-03-18T18:15:47Z (GMT) No. of bitstreams: 1 HeppellSelinaFisheriesWildlifeEvaluatingSustainabilityFisheries.pdf: 490693 bytes, checksum: daf830e55f1e5070f005ff00aeae371f (MD5)

Relationships

In Administrative Set:
Last modified: 07/26/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items