A multivariate model for estimating life history parameters for North and South Atlantic blue shark stocks

We obtain estimates of life history parameters and steepness from the FishLife database that contains the metanalytical information from Fishbase and from Myers Legacy data. The first stage in the estimation process was to conduct the analysis using the existing records in the FishLife database. The second stage was to update the analysis with most recent life-history parameters being applied in the 2023 ICCAT Blue Shark assessment. Finally, we compare the results of the parameters derived using FishLife with those using Leslie Matrix approaches. The set of life-history parameters and steepness can form the basis for priors in assessments and Operating Models for Management Strategy Evaluation.