The Productivity and Susceptibility Analysis (PSA) is used to assess the risk, or vulnerability, of a stock to fishing pressure based on both biological productivity and stock susceptibility to fishing. The only data inputs are life history parameters such as age at first maturity, maximum age, fecundity, natural mortality, and behavior – easily available from local fishermen, literature, and online databases such as FishBase – and information on the fishery available from fishermen and managers. No catch records, effort information, or fishery-independent surveys are necessary.
