Revised estimates of the biological parameters for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea

This report updates the estimates of the biological parameters for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B). We present revised estimates of the von Bertalanffy growth curves, length weight relationship, and natural mortality based on CCAMLR observer data collected from commercial fishing operations in the Ross Sea. In addition, we review meta-data for plausible estimates of the steepness parameter of the stock-recruitment relationship and recruitment variability of Antarctic toothfish.