ABSTRACT
Evaluating the spawners abundance is a major issue to model the dynamics of wild populations. Due to the small number of records or few repetitions as well as many uncontrolled conditions, estimates of population sizes and related demographic parameters are blurred with uncertainty. Conventional statistical analyses can lead to a misrepresentation of this uncertainty while they more often than not ignore additional information readily available to the modeler. This chapter develops a Bayesian analysis to take full advantage of all the information carried by the data collected in the field and by the expertise derived from the fishery manager.
