Development of biological reference points and precautionary approach framework for the Dungeness Crab (Cancer magister) fishery in Crab Management Areas I and J

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Language of the publication
English
Date
2023
Type
Report
Author(s)
  • Aulthouse, Brendan
  • Araujo, Andres
  • Burton, Meghan
  • Zhang, Zane
  • Obradovich, Shannon
  • Fong, Ken
  • Curtis, Daniel
Publisher
Fisheries and Oceans Canada, Canadian Science Advisory Secretariat

Abstract

This paper identifes reference points for Dungeness Crab in Crab Management Areas I and J in British Columbia. We estimated an Upper Stock Reference (USR = 0.456 female standardized CPUE) and a Limit Reference Point (LRP = 0.228 female standardized CPUE), as described in A Fishery Decision-Making Framework Incorporating the Precautionary Approach (DFO 2009) also known as DFO’s Precautionary Approach (PA) policy. These reference points will inform the assessment of stock status of Dungeness Crab in Crab Management Areas (CMAs) I and J. Candidate reference points were estimated using three methodologies: a data-driven empirical method, a model-based method which estimates the stock-recruitment relationship, and a simulation model-based method. We recommend applying the empirically-based methodology for determining reference points for the Dungeness Crab in CMAs I and J as they are more interpretable than the simulation model-based reference points, and are more estimable than the stock-recruitment reference points. Subsequent research can use this framework to develop reference points for Dungeness Crab in other CMAs.

Description

1 online resource (iv, 64 pages) : maps, charts

Subject

  • Nature and environment,
  • Water

Pagination

iv, 64 pages

Identifiers

Government document number
Fs70-5/2023-021E-PDF
ISBN
9780660477114
ISSN
1919-5044

Report

Report no.
2023/021
Series title
Research Document (Canadian Science Advisory Secretariat)

Citation(s)

Aulthouse, B., Araujo, A., Burton, M., Zhang, Z., Obradovich, S., Fong, K., and Curtis, D. 2023. Development of biological reference points and precautionary approach framework for the Dungeness Crab (Cancer magister) fishery in Crab Management Areas I and J. DFO Can. Sci. Advis. Sec. Res. Doc. 2023/021. iv + 64 p.

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