Retrospective analysis was performed for CRA 2 and CRA 4. Data in the terminal (1 to 10) years were removed. No strong systematic biases in key model outputs were found for either of the stocks considered when removing all data sets. When removing only the catch per unit of effort (CPUE), the model outputs were not significantly different for up to 5 years removals. The results of stock assessments missing CPUE data can therefore still be used as a basis for management advice for several years.
FAR 2022/04 Retrospective analysis for New Zealand red rock lobster (Jasus edwardsii) stock assessment models
Report - Fisheries Assessment Report (FAR)