Remote sensing provides new insights on ...
Document type :
Article dans une revue scientifique: Article original
Title :
Remote sensing provides new insights on phytoplankton biomass dynamics and black pearl oyster life-history traits in a Pacific Ocean deep atoll
Author(s) :
Lefebvre, Sébastien [Auteur]
Verpoorter, Charles [Auteur]
Université du Littoral Côte d'Opale [ULCO]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Rodier, Martine [Auteur]
Institut méditerranéen d'océanologie [MIO]
Sangare, Nathanaël [Auteur]
Andréfouët, Serge [Auteur]
Verpoorter, Charles [Auteur]

Université du Littoral Côte d'Opale [ULCO]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Rodier, Martine [Auteur]
Institut méditerranéen d'océanologie [MIO]
Sangare, Nathanaël [Auteur]
Andréfouët, Serge [Auteur]
Journal title :
Marine Pollution Bulletin
Pages :
113863
Publisher :
Elsevier
Publication date :
2022
ISSN :
0025-326X
English keyword(s) :
Landsat-8
time series
Plankton
Aquaculture
DEB model
Pinctada margaritifera
time series
Plankton
Aquaculture
DEB model
Pinctada margaritifera
English abstract : [en]
Thus far, no long-term in situ observation of planktonic biomass have been undertaken to optimize the black-lippearl oyster aquaculture in the remote Tuamotu atolls. The feasibility of using data from the OLI sensor ...
Show more >Thus far, no long-term in situ observation of planktonic biomass have been undertaken to optimize the black-lippearl oyster aquaculture in the remote Tuamotu atolls. The feasibility of using data from the OLI sensor onboardLandsat-8 satellite to determine chlorophyll a concentrations (Chla) in a deep atoll, Ahe, was then assessed overthe 2013–2021 period using 153 images. Validations with in situ observations were satisfactory, while seasonaland spatial patterns in Chla were evidenced within the lagoon. Then, a bioenergetic modelling exercise wasundertaken to estimate oyster life-history traits when exposed to the retrieved Chla. The outputs provide spatio-temporal variations in pelagic larval duration (11.1 to 30.6 days), time to reach commercial size (18.8 to45.3 months) and reproductive outputs (0.5 to 1.7 event year 1). This first study shows the potential of usingremote sensing to monitor the trophic status of deep pearl farming lagoons and help aquaculture management.Show less >
Show more >Thus far, no long-term in situ observation of planktonic biomass have been undertaken to optimize the black-lippearl oyster aquaculture in the remote Tuamotu atolls. The feasibility of using data from the OLI sensor onboardLandsat-8 satellite to determine chlorophyll a concentrations (Chla) in a deep atoll, Ahe, was then assessed overthe 2013–2021 period using 153 images. Validations with in situ observations were satisfactory, while seasonaland spatial patterns in Chla were evidenced within the lagoon. Then, a bioenergetic modelling exercise wasundertaken to estimate oyster life-history traits when exposed to the retrieved Chla. The outputs provide spatio-temporal variations in pelagic larval duration (11.1 to 30.6 days), time to reach commercial size (18.8 to45.3 months) and reproductive outputs (0.5 to 1.7 event year 1). This first study shows the potential of usingremote sensing to monitor the trophic status of deep pearl farming lagoons and help aquaculture management.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
ANR Project :
Source :