Méthodes d'évaluation des ressources marines vivantes pour une exploitation durable

In my work, which is summarised in this paper for obtaining accreditation to supervise research (the HDR), I addressed three areas: i) statistical methods of estimating the density of living resources, ii) mathematical models of population dynamics for estimating the abundance of marine populations and iii) methods for detecting temporal changes in the status of exploited populations. My work has focused on: i) Many studies of the observability of fish by trawling and by video and the development of stochastic models to better assess local fish densities. ii) Development of models without commercial catches, using Bayesian and frequentist approaches; the study of multi-specific relationships and the proposal for a threshold predator-prey model. iii) Proposal for statistical tests to detect changes in a population's dynamics; development of statistical methods for combining diverse pieces of information in order to set up assessment of the status or dynamics of an exploited population or community.