Understanding connectivity of pearl oyster populations within Tuamotu atoll semi-closed lagoons: Cumulative insight from genetics and biophysical modelling approaches

Connectivity affects species demography, (meta)population dynamics, evolution, phylogeny and biogeography. Various methodological approaches are applied to measure connectivity. Biophysical modelling can explore systematically the influence of atmospheric, oceanic ecological forcing, while genetics measures connectivity patterns within sampling strategy limit. In Pacific Ocean pearl farming lagoons, activity relies on spat collecting black lipped oyster Pinctada margaritifera occurring after larval dispersal phase, which follows spawning from wild or farmed populations. 3D genomic studies have both separately brought insights within-lagoon origin spats. Here, we combined previous results with new realistic biophysical scenarios elucidate in Ahe Atoll lagoon. When combined, identified weather sequence likely explaining realized observations. We discuss strengths, weaknesses, opportunities threats combining these two considering specific demographic questions.