@article{fdi:010068799, title = {{L}arval connectivity of pearl oyster through biophysical modelling ; evidence of food limitation and broodstock effect}, author = {{T}homas, {Y}oann and {D}umas, {F}. and {A}ndr{\'e}fou{\¨e}t, {S}erge}, editor = {}, language = {{ENG}}, abstract = {{T}he black-lip pearl oyster ({P}inctada margaritifera) is cultured extensively to produce black pearls, especially in {F}rench {P}olynesia atoll lagoons. {T}his aquaculture relies on spat collection, a process that experiences spatial and temporal variability and needs to be optimized by understanding which factors influence recruitment. {H}ere, we investigate the sensitivity of {P}. margaritifera larval dispersal to both physical and biological factors in the lagoon of {A}he atoll. {C}oupling a validated 3{D} larval dispersal model, a bioenergetics larval growth model following the {D}ynamic {E}nergy {B}udget ({DEB}) theory, and a population dynamics model, the variability of lagoon-scale connectivity patterns and recruitment potential is investigated. {T}he relative contribution of reared and wild broodstock to the lagoon-scale recruitment potential is also investigated. {S}ensitivity analyses pointed out the major effect of the broodstock population structure as well as the sensitivity to larval mortality rate and inter-individual growth variability to larval supply and to the subsequent settlement potential. {T}he application of the growth model clarifies how trophic conditions determine the larval supply and connectivity patterns. {T}hese results provide new cues to understand the dynamics of bottom-dwelling populations in atoll lagoons, their recruitment, and discuss how to take advantage of these findings and numerical models for pearl oyster management.}, keywords = {{P}earl oyster ; {L}agoon ; {B}iophysical modelling ; {C}onnectivity ; {P}opulation dynamics ; {DEB} model ; {POLYNESIE} {FRANCAISE} ; {TUAMOTU}}, booktitle = {}, journal = {{E}stuarine {C}oastal and {S}helf {S}cience.{P}art {B}}, volume = {182}, numero = {{N}o {S}p{\'e}cial "{S}ustainable pearl-culture"}, pages = {283--293}, ISSN = {0272-7714}, year = {2016}, DOI = {10.1016/j.ecss.2016.03.010}, URL = {https://www.documentation.ird.fr/hor/fdi:010068799}, }