Download FAR 2022/50 Exploratory analysis of stock-recruitment relationships for New Zealand red rock lobster (Jasus edwardsii)

Stock-recruitment relationships can be used to predict the magnitude of recruitment that would be produced at different population sizes. The present study explored simple linear correlations between times series spawning stock biomass (SSB) and recruitment estimated by the most recently updated or current rock lobster assessments (CRA 1 to CRA 6). Results suggested that increases in SSB may not lead to subsequent increases in recruitment across the estimated range of stock sizes.