Hyposalinity affects diurnal photoacclimation patterns in the rhodophyte Palmaria palmata under mimicked Arctic summer conditions: raw data from laboratory physiological measurements

The Arctic is one area that has been affected by rising temperatures, leading to an increase in meltwater in the water column. During the months of June/July 2019, fronds of the red seaweed Palmaria palmata in Kongsfjorden, Svalbard (78°55'56.0N 11°55'59.6E) were colected in the intertidal...

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Bibliographic Details
Main Authors: Marambio, Johanna, Rosenfeld, Sebastian, Bischof, Kai
Format: Dataset
Language:English
Published: PANGAEA 2023
Subjects:
Antioxidant activity 2,2-diphenyl-1-picrylhydrazyl
Arctic
Arctic Biodiversity & Livelihoods
beta-Carotene
Biological sample
BIOS
Chlorophyll a
climate change
Duration
number of days
FACE-IT
Family
Kongsfjorden
Spitsbergen
Lutein
Non photochemical quenching
light curve 0
light curve 100
light curve 200
light curve 300
light curve 400
light curve 500
light curve 600
Ny-Ålesund
Palmaria palmata
Photochemical quantum yield
Photosynthetic parameters
pigments
Pulse amplitude modulation (PAM) fluorometry
Replication
Salinity
seaweed
Species
unique identification
unique identification (Semantic URI)
unique identification (URI)
Treatment: light intensity
Treatment: salinity
Zeaxanthin
Svalbard
Arctic biodiversity
Climate change
Kongsfjord*
Ny Ålesund
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.956547
https://doi.org/10.1594/PANGAEA.956547
Description
Summary:The Arctic is one area that has been affected by rising temperatures, leading to an increase in meltwater in the water column. During the months of June/July 2019, fronds of the red seaweed Palmaria palmata in Kongsfjorden, Svalbard (78°55'56.0N 11°55'59.6E) were colected in the intertidal zone. For 21 days at 0ºC, P. palmata was subjected to variations of irradiance cycles and three different salinities SA 34 (control), 28 and 18 in laboratory conditions. Subsequently, measurements in triplicate (n=3) were made of photosynthetic parameters such as maximal quantum yield of PSII (Fv/Fm), non-photochemical quenching (NPQ), biochemical parameters such as quantification of pigments chlorophyll a (Chl a), lutein (Lut), zeaxanthin (Zeax), β-carotene (β-Car), and antioxidant activity 2,2-diphenyl-1-picrylhydrazyl (DPPH).

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