Publications des scientifiques de l'IRD

Andréfouët Serge, Desclaux T., Buttin J., Jullien S., Aucan Jerôme, Le Gendre R., Liao V. T. (2022). Periodicity of wave-driven flows and lagoon water renewal for 74 Central Pacific Ocean atolls. Marine Pollution Bulletin, 179, p. 113748 [17 p.]. ISSN 0025-326X.

Titre du document
Periodicity of wave-driven flows and lagoon water renewal for 74 Central Pacific Ocean atolls
Année de publication
2022
Type de document
Article référencé dans le Web of Science WOS:000809653300004
Auteurs
Andréfouët Serge, Desclaux T., Buttin J., Jullien S., Aucan Jerôme, Le Gendre R., Liao V. T.
Source
Marine Pollution Bulletin, 2022, 179, p. 113748 [17 p.] ISSN 0025-326X
French Polynesia atolls are spread on a vast 2300 by 1200 km Central Pacific Ocean area exposed to spatially and temporally dependent wave forcing. They also have a wide range of closed to open morphologies and several have been suitable to develop from black-lipped pearl oysters a substantial pearl farming activity in the past 30 years, representing nowadays the 2nd source of income for French Polynesia. Considering here only the component of lagoon renewal that is driven by waves, we investigate for 74 atolls different lagoon renewal metrics using 20 years of wave model data at 0.05 degrees spatial resolution. Wavelet spectral analyses highlight that atolls, even in close vicinity, can be exposed to different and characteristic periodicities in wave-driven flows and water renewal. These characteristics are discussed in relation to pearl farming atolls, including atolls known to be efficient oyster spat producers, a critical activity for pearl farming sustainability.
Plan de classement
Limnologie physique / Océanographie physique [032] ; Ressources halieutiques [040] ; Géologie et formations superficielles [064]
Description Géographique
PACIFIQUE ; POLYNESIE FRANCAISE ; TUAMOTOU ; GAMBIER ; SOCIETE ILES
Localisation
Fonds IRD [F B010085265]
Identifiant IRD
fdi:010085265
Contact