Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord ...
The presence of snow on sea-ice can have dramatic effects on the photosynthetically available radiation (PAR) that reaches the ice algae. To better quantify this effect in the high Arctic, an experiment was conducted in Kangerlussuaq, west Greenland, throughout March 2013 where snow was cleared off...
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Online Access: | https://dx.doi.org/10.1594/pangaea.963203 https://doi.pangaea.de/10.1594/PANGAEA.963203 |
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ftdatacite:10.1594/pangaea.963203 2024-01-28T10:02:38+01:00 Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord ... Sorrell, Brian K Hawes, Ian Stratmann, Tanja Lund-Hansen, Lars Chresten 2023 application/zip https://dx.doi.org/10.1594/pangaea.963203 https://doi.pangaea.de/10.1594/PANGAEA.963203 en eng PANGAEA https://dx.doi.org/10.3390/jmse9080830 https://dx.doi.org/10.1594/pangaea.962926 https://dx.doi.org/10.1594/pangaea.962928 https://dx.doi.org/10.3390/jmse9080814 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Greenland ice algae optics photobiology Snow cover stress Spectral radiometer Arctic Biodiversity & Livelihoods FACE-IT Bundled Publication of Datasets article Collection 2023 ftdatacite https://doi.org/10.1594/pangaea.96320310.3390/jmse908083010.1594/pangaea.96292610.1594/pangaea.96292810.3390/jmse9080814 2024-01-04T19:53:41Z The presence of snow on sea-ice can have dramatic effects on the photosynthetically available radiation (PAR) that reaches the ice algae. To better quantify this effect in the high Arctic, an experiment was conducted in Kangerlussuaq, west Greenland, throughout March 2013 where snow was cleared off the sea-ice and measured parameters were compared to a control area. Samples of under-ice algae were then taken to analyse the species composition. The bottom 30 mm of the sampled ice cores were used to determine the stress on the photosystems of the sea ice algae as they experienced the rapid irradiance via the variable fluorescence of photosystem II (PSII). PSII was measured using pulse amplitude modulated (PAM) fluorometry (Walz Imaging-PAM fluorometer). This provides the effective quantum yield of PSII (Φ_PSII), which is a unitless ratio of ambient (F) and maximum (F_m) fluorescence yields. These measurements were taken every 3 hours over the final day of the study. Periodically over the week of the study, ... Article in Journal/Newspaper Arctic biodiversity Arctic Greenland ice algae Kangerlussuaq Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Greenland ice algae optics photobiology Snow cover stress Spectral radiometer Arctic Biodiversity & Livelihoods FACE-IT |
spellingShingle |
Greenland ice algae optics photobiology Snow cover stress Spectral radiometer Arctic Biodiversity & Livelihoods FACE-IT Sorrell, Brian K Hawes, Ian Stratmann, Tanja Lund-Hansen, Lars Chresten Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord ... |
topic_facet |
Greenland ice algae optics photobiology Snow cover stress Spectral radiometer Arctic Biodiversity & Livelihoods FACE-IT |
description |
The presence of snow on sea-ice can have dramatic effects on the photosynthetically available radiation (PAR) that reaches the ice algae. To better quantify this effect in the high Arctic, an experiment was conducted in Kangerlussuaq, west Greenland, throughout March 2013 where snow was cleared off the sea-ice and measured parameters were compared to a control area. Samples of under-ice algae were then taken to analyse the species composition. The bottom 30 mm of the sampled ice cores were used to determine the stress on the photosystems of the sea ice algae as they experienced the rapid irradiance via the variable fluorescence of photosystem II (PSII). PSII was measured using pulse amplitude modulated (PAM) fluorometry (Walz Imaging-PAM fluorometer). This provides the effective quantum yield of PSII (Φ_PSII), which is a unitless ratio of ambient (F) and maximum (F_m) fluorescence yields. These measurements were taken every 3 hours over the final day of the study. Periodically over the week of the study, ... |
format |
Article in Journal/Newspaper |
author |
Sorrell, Brian K Hawes, Ian Stratmann, Tanja Lund-Hansen, Lars Chresten |
author_facet |
Sorrell, Brian K Hawes, Ian Stratmann, Tanja Lund-Hansen, Lars Chresten |
author_sort |
Sorrell, Brian K |
title |
Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord ... |
title_short |
Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord ... |
title_full |
Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord ... |
title_fullStr |
Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord ... |
title_full_unstemmed |
Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord ... |
title_sort |
photobiological effects on ice algae of a rapid whole-fjord loss of snow cover during spring growth in kangerlussuaq, a west greenland fjord ... |
publisher |
PANGAEA |
publishDate |
2023 |
url |
https://dx.doi.org/10.1594/pangaea.963203 https://doi.pangaea.de/10.1594/PANGAEA.963203 |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) |
geographic |
Arctic Greenland Kangerlussuaq |
geographic_facet |
Arctic Greenland Kangerlussuaq |
genre |
Arctic biodiversity Arctic Greenland ice algae Kangerlussuaq Sea ice |
genre_facet |
Arctic biodiversity Arctic Greenland ice algae Kangerlussuaq Sea ice |
op_relation |
https://dx.doi.org/10.3390/jmse9080830 https://dx.doi.org/10.1594/pangaea.962926 https://dx.doi.org/10.1594/pangaea.962928 https://dx.doi.org/10.3390/jmse9080814 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.96320310.3390/jmse908083010.1594/pangaea.96292610.1594/pangaea.96292810.3390/jmse9080814 |
_version_ |
1789327942827900928 |