Big skate (Raja binoculata) and longnose skate (R. rhina) stock assessments for British Columbia / J.R. King ... [et al.].: Fs70-5/2015-070E-PDF

Big Skate (Raja binoculata) and Longnose Skate (R. rhina) are captured and landed by the commercial groundfish trawl and hook-and-line fisheries. Harvest advice was requested to assess whether current harvest levels are sustainable and compliant with the Fishery Decision-making Framework Incorporating the Precautionary Approach. This is the first detailed stock assessment undertaken for these Pacific stocks. Several methods were explored for assessing the stock status of Big Skate and Longnose Skate in order to provide harvest advice. A Bayesian surplus production model was investigated for a Big Skate case study, but produced unsatisfactory results for providing fisheries management advice and was not considered further. As such, reliable estimates of biomass could not be produced, and evaluation of current and future stock status relative to fishery and biological reference points was not possible.

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Publication information
Department/Agency Canada. Department of Fisheries and Oceans.
Canadian Science Advisory Secretariat.
Title Big skate (Raja binoculata) and longnose skate (R. rhina) stock assessments for British Columbia / J.R. King ... [et al.].
Variant title Évaluations des stocks de raie biocellée (Raja binoculata) et de pocheteau long-nez (R. rhina) en Colombie-Britannique
Series title Canadian Science Advisory Secretariat research document, 1919-5044 ; 2015/070, Pacific Region
Publication type Series - View Master Record
Language [English]
Format Electronic
Electronic document
Note(s) "November 2015."
Includes bibliographic references.
Publishing information Ottawa : Fisheries and Oceans Canada, 2015.
Author / Contributor King, J. R. (Jacquelynne R.), 1968-
Description ix, 329 p. : fig., graphs, maps, tables.
Catalogue number
  • Fs70-5/2015-070E-PDF
Subject terms Fisheries resources
Salt water fish
Fishing area
Fisheries management
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