@article{fdi:010097093,
  title = {{C}hanges in intra-lagoon connectivity of black-lipped pearl oyster populations in less than a decade in a pearl farming semi-closed atoll},
  author = {{B}ouchet, {N}. and {T}eaniniuraitemoana, {V}. and {R}eisser, {C}. and {L}o-{Y}at, {A}. and {T}rophime, {T}. and {A}ndr{\'e}fou{\¨e}t, {S}erge},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he genetic connectivity between different pearl oyster ({P}inctada margaritifera) populations from the pearlfarming {A}he atoll lagoon ({T}uamotu {A}rchipelago, {F}rench {P}olynesia) was reassessed 8 years after an initial study performed in 2017. {T}he 2017 genomic analysis revealed the presence of two spatially-structured genetic clusters, including a wild population from the north part of the {A}he lagoon, which was the only source of all spats. {S}pecimens from wild (n = 170), farmed (n = 136) and spat (n = 433) populations were collected in 2024-2025 to primarily re-assess the origin (farmed or wild, or both) of the spats. {I}n stark contrast with the 2017 results, the genomic analysis based on 14,886 {SNP}s common to all samples revealed low genetic diversity, high inbreeding rates, and the existence of two genetic clusters each without clear spatial distribution, suggesting intra- and inter-population genetic homogenization at lagoon scale. {T}he 2024-2025 data suggest that both wild and farmed populations can contribute to the spat production. {T}he observed population homogenization is explained by the ban of inter-island transfers since 2019 which was endorsed by pearl farmers, leading to a farming oyster production in closed-circuit within the lagoon. {T}he comparison between all samples suggests that the current 2024-2025 populations are related to the north wild population present in 2017. {I}n the light of the current decrease of wild oyster stocks and spat production in {A}he and elsewhere, the consequences of these findings are discussed in terms of restocking and long-term monitoring of wild oyster populations in both exploited and pristine lagoons.},
  keywords = {{P}inctada margaritifera ; {G}enomics ; {C}onnectivity ; {A}quaculture ; {L}agoon ; {P}earl {F}arming ; {POLYNESIE} {FRANCAISE} ; {TUAMOTU} {GAMBIER}},
  booktitle = {},
  journal = {{M}arine {P}ollution {B}ulletin},
  volume = {230},
  numero = {},
  pages = {119826 [13 p.]},
  ISSN = {0025-326{X}},
  year = {2026},
  DOI = {10.1016/j.marpolbul.2026.119826},
  URL = {https://www.documentation.ird.fr/hor/fdi:010097093},
}