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Gernez, Pierre; Doxaran, David; Barillé, Laurent (2017)
Publisher: Frontiers Media S.A.
Journal: Frontiers in Marine Science
Languages: English
Types: Article
Subjects: Sentinel2, turbidity, Marine Science, General. Including nature conservation, geographical distribution, chlorophyll, mudflat, ocean color, oyster, aquaculture, Q, QH1-199.5, Science, microphytobenthos
The algorithms of Novoa et al. (2017) and Gons et al. (2005) were recalibrated and applied to Sentinel2 data to retrieve suspended particulate matter (SPM) and chlorophyll a (chl a) concentration in the environmentally and economically important intertidal zones. Sentinel2-derived chl a and SPM concentration distributions were analyzed at the scale of an oyster farm over a variety of tidal conditions. Sentinel2 imagery was then coupled with ecophysiological modeling to analyze the influence of tide-driven chl a and SPM dynamics on oyster clearance and chl consumption rates. Within the studied oyster farming site (Bourgneuf Bay along the French Atlantic coast), chl consumption rate mirrored the changes in chl a concentration during neap tides, whereas oyster clearance and chl consumption rates were both negatively impacted by high SPM concentration during spring tides.

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