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Léger-Daigle, Romy; Noisette, Fanny; Bélanger, Simon; Cusson, Mathieu; Nozais, Christian (2022): Light absorption of intertidal temperate seagrass Zostera marina from Rimouski, QC, Canada, under a light intensity gradient [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943535, In: Léger-Daigle, R et al. (2022): Subcellular to shoot-scale photoacclimation of intertidal temperate seagrass Zostera marina to light attenuation [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.943540

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Abstract:
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 25 days of light exposure, the fraction of incident visible light absorbed by the leaves (absorptance) was quantified with a Lambda850 (PerkinElmer, USA) spectrophotometer with integrating sphere. Light absorption by the photosynthetic components of the leaves (photosynthetic absorptance) was distinguished from the total absorptance by correcting for the non-photosynthetic absorptance at 750 nm (Cummings and Zimmerman, 2003).
Keyword(s):
Acclimation; Eelgrass; Laboratory experiment; light intensity; PAM fluorometry; photophysiology; subarctic; Zostera marina
Supplement to:
Léger-Daigle, Romy; Noisette, Fanny; Bélanger, Simon; Cusson, Mathieu; Nozais, Christian (2022): Photoacclimation and Light Thresholds for Cold Temperate Seagrasses. Frontiers in Plant Science, 13, 805065, https://doi.org/10.3389/fpls.2022.805065
Further details:
Cummings, Molly E; Zimmerman, Richard C (2003): Light harvesting and the package effect in the seagrasses Thalassia testudinum Banks ex König and Zostera marina L.: optical constraints on photoacclimation. Aquatic Botany, 75(3), 261-274, https://doi.org/10.1016/S0304-3770(02)00180-8
Funding:
Canadian Space Agency (CSA), grant/award no. 18FARIMA20: WaterSat Imaging Spectrometer Experiment for optically shallow inland and coastal waters assessment (WISE-Man)
Coverage:
Latitude: 48.461730 * Longitude: -68.523870
Date/Time Start: 2020-08-10T00:00:00 * Date/Time End: 2020-08-10T00:00:00
Event(s):
East_Rimouski * Latitude: 48.461730 * Longitude: -68.523870 * Date/Time: 2020-07-08T00:00:00 * Location: Quebec, Canada * Method/Device: Hand picking * Comment: Sampling by foot
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Type of studyStudy typeLéger-Daigle, Romy
2 DATE/TIMEDate/TimeLéger-Daigle, RomyGeocode
3 SpeciesSpeciesLéger-Daigle, Romy
4 Uniform resource locator/link to referenceURL refLéger-Daigle, RomyWoRMS AphiaID
5 Temperature, waterTemp°CLéger-Daigle, Romy
6 Experiment dayExp daydayLéger-Daigle, Romy
7 Treatment: light intensityT:Ioµmol/m2/sLéger-Daigle, Romy
8 Chamber numberChamber noLéger-Daigle, Romy
9 ReplicateReplLéger-Daigle, Romy
10 Specimen identificationSpec IDLéger-Daigle, Romyshoot
11 Absorption factor, totalAF totalLéger-Daigle, RomyCalculated
12 Absorption factor, photosyntheticAF photoLéger-Daigle, RomyCalculated
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
913 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Study type		2 
Date/Time		3 
Species		4 
URL ref		5 
Temp [°C]		6 
Exp day [day]		7 
T:Io [µmol/m2/s]		8 
Chamber no		9 
Repl		10 
Spec ID		11 
AF total		12 
AF photo
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