Light absorption 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 25 days of light exposure, the fraction of incident visible lig...

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Bibliographic Details
Main Authors: Léger-Daigle, Romy, Noisette, Fanny, Bélanger, Simon, Cusson, Mathieu, Nozais, Christian
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
Absorption factor
photosynthetic
total
Acclimation
Calculated
Chamber number
DATE/TIME
East_Rimouski
Eelgrass
Experiment day
Hand picking
Laboratory experiment
light intensity
PAM fluorometry
photophysiology
Quebec
Canada
Replicate
Species
Specimen identification
subarctic
Temperature
water
Treatment: light intensity
Type of study
Uniform resource locator/link to reference
Zostera marina
Subarctic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.943535
https://doi.org/10.1594/PANGAEA.943535
Description
Summary: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).

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