Photosynthetic efficiency and capacity of intertidal temperate seagrass Zostera marina from Rimouski, QC, Canada, under a light intensity gradient


Eelgrass shoots (Zostera marina) from Rimouski, QC, were exposed in July 2020 to a natural gradient of light intensity, ranging from 6 to 860 µmol photons/m²/s, to assess the species' capacity to respond to light attenuation. After 5 and 25 days of light exposure, photosynthetic responses were examined using PAM (Pulse Amplitude Modulated) fluorometry. Rapid Light Curves (RLC) were carried out on the second leaf of each shoot and were used for extraction of photosynthetic parameters, such as the photosynthetic efficiency (alpha), the photosynthetic capacity (ETRmax), and the onset of light saturation of the photosynthetic apparatus (Ek).

Related Identifier IsPartOf
Related Identifier IsSupplementTo
Metadata Access
Creator Léger-Daigle, Romy; Noisette, Fanny ORCID logo; Bélanger, Simon; Cusson, Mathieu ORCID logo; Nozais, Christian
Publisher PANGAEA
Publication Year 2022
Funding Reference Canadian Space Agency Crossref Funder ID 18FARIMA20 WaterSat Imaging Spectrometer Experiment for optically shallow inland and coastal waters assessment (WISE-Man)
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 1356 data points
Discipline Earth System Research
Spatial Coverage (-68.524 LON, 48.462 LAT); Quebec, Canada
Temporal Coverage Begin 2020-07-21T00:00:00Z
Temporal Coverage End 2020-08-10T00:00:00Z