Lo -Yat A. auteur aut IRD Monaco C. J. auteur aut IRD Thomas Yoann auteur aut IRD Czorlich Y. auteur aut IRD Le Borgne F. auteur aut IRD Muylaert M. auteur aut IRD Le Moullac G. auteur aut IRD Vanaa V. auteur aut IRD Beliaeff B. auteur aut IRD Garen P. auteur aut IRD text journalArticle eng text/pdf born digital access The pearl-farming industry depends mostly on the natural recruitment of pearl oysters. Little is known about the relative influence of different ecological processes on the natural recruitment of pearl oysters across biogeographical scales. Spatio-temporal dynamics of bivalve larvae and spats were described at Ahe and Mangareva, 1500 km apart across French Polynesia. We quantified the effect of candidate environmental predictors on the dynamics of larvae. Both lagoons showed similar temporal dynamics with twice more larvae and 6 times more spat in Ahe. Pinctada maculata spat were more abundant than for P. margaritifera at both lagoons. While the temporal dynamics in larvae abundance were best explained by a positive effect of temperature in Ahe, the dynamics in Mangareva were poorly predicted by the environmental variables, meaning bivalve early-life stages perform better in Ahe than Mangareva suggesting a mismatch between the relevant environmental forces driving larval dynamics at these two contrasting lagoons. specialized Bivalve larvae Spat Dynamics Atoll Pinctada margaritifera P maculata POLYNESIE FRANCAISE TUAMOTU GAMBIER AHE MANGAREVA 034 040 183 114099 [11 p.] 2022 0025-326X https://www.documentation.ird.fr/hor/fdi:010086293 10.1016/j.marpolbul.2022.114099 0025-326X [F B010086293] https://www.documentation.ird.fr/hor/fdi:010086293 https://www.documentation.ird.fr/intranet/publi/2022-11/010086293.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2022-11-09 2025-02-24 fdi:010086293 fre