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Description
In 2000, the West Australian Rock Lobster (WRL) fishery became the first fishery in the world to be certified by the Marine Stewardship Council (MSC). At the annual audit in December 2010, the MSC’s independent certifying body, Scientific Certification Systems, set a number of conditions for ongoing certification. The most important condition under Principle 1, Stock Assessment, was to have an international stock assessment and modelling expert undertake a review of the latest version of the WRL Stock Assessment Report that has been used to provide advice for the management of the fishery, and 2010 stock assessment and 2010/11 management settings,
The stock assessment reviewed in this report considers the three Zones (A, B and C), with each Zone divided into a number of regions (3 in Zone A, 4 in Zone B, 4 in Zone C). The management objectives are specified at the Zone-level. The model operates from November 1974 to June 2010, and considers 11 within-year time-steps to capture key aspects of the dynamics of the population (e.g. fishing, movement, growth). The model is effort-conditioned in that effort is assumed to be measured without error and the fit to the historical catches is included in the objective function. The values for the parameters of the model are estimated by maximizing an objective function which consists of the likelihoods associated with a variety of data sources (catch, length-composition, tagging etc.), as well as a set of penalties (priors).
ISBN
978-1-921845-22-2
ISSN
1447 - 2058
Publication Date
8-2011
Series Number
99
Publisher
Department of Fisheries, Western Australia
City
Perth
Keywords
Stock assessment, Review, Western Australian Rock Lobster, Certification, Marine Stewardship Council (MSC)
Disciplines
Aquaculture and Fisheries | Environmental Indicators and Impact Assessment | Marine Biology | Natural Resources Management and Policy | Terrestrial and Aquatic Ecology
Recommended Citation
Punt, A E,
and
Department of Fisheries Western Australia.
2011. Fisheries occasional publication No.99 - Review of the Western Australian Rock Lobster stock assessment. 99. Department of Fisheries, Western Australia. Perth.
https://library.dpird.wa.gov.au/fr_fop/78
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Aquaculture and Fisheries Commons, Environmental Indicators and Impact Assessment Commons, Marine Biology Commons, Natural Resources Management and Policy Commons, Terrestrial and Aquatic Ecology Commons
