In the past, commercial catch length frequency (LF) data for New Zealand red rock lobster stocks were processed as empirical LFs and a subjective equation was used to derive a measure of uncertainty for each LF. This document describes the development of a methodology for predicting LFs and associated uncertainty using a model and data collected by the observer catch sampling and voluntary logbook programmes. This methodology is applied to two Quota Management Areas (CRA 2 and CRA 3).
FAR 2022/30 Modelling the length frequency of red rock lobsters (Jasus edwardsii) in New Zealand
Report - Fisheries Assessment Report (FAR)