• Investigation of the assumed similar efficiency of policing effort types for West Coast rock lobster

  

  Author: Brandão, Anabela ; Butterworth, Doug Date: Apr 2018 The assumption made that the efficiency for each of the policing effort type is similar which is assumed in the GLM approach to obtain confiscations per unit policing effort index by Brandão et al. (2016) is investigated. Results show that ... Read more
• Refined trends in poaching for West Coast rock lobster using information from the “new” database for the period 2012 to 2017

  

  Author: Brandão, Anabela ; Butterworth, Doug Date: Aug 2018 GLM methods are applied to the “new” compliance database in which policing effort is linked to confiscations taken as well as to the “old” compliance database on confiscations (and abandonments) and on policing effort (but restricting the ... Read more
• Stochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

  

  Author: Brandão, Anabela ; Butterworth, Doug Date: Oct 2018 For stochastic future recruitment and for annual catch levels of 0, 200, 400, 575 and 675 tonnes, the median of the spawning biomass estimates for the New Base case model drops initially, but returns to its current level within a decade. ... Read more
• Investigation of the comparability of the West Coast rock lobster compliance databases (“new” and “old”)

  

  Author: Brandão, Anabela ; Butterworth, Doug Date: Aug 2018 The “old” and “new” compliance databases are compared, especially in the context of inferring the number of unsuccessful (“zero”) instances of detecting illegally caught west coast rock lobster. A proposal is made for the proportion of such ... Read more
• Results for the updated trends in policing effort and the number of confiscations for West Coast rock lobster using the “old” database for the period 2008 to 2017

  

  Author: Brandão, Anabela ; Butterworth, Doug Date: Aug 2018 GLM methods are applied to compliance data (the “old” database) on confiscations (and abandonments) and on policing effort to estimate recent trends in the amount of rock lobster that is poached. Data for the period in 2016 when Operation ... Read more

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