Eco-physiological data on Laminaria solidungula and Saccharina latissima from Kongsfjorden, Spitsbergen, during the polar night 2016/17
Kelps, perennial brown seaweeds of the order Laminariales, are foundational species in Arctic coastal ecosystems. Presently, their ability to persist under polar night conditions might be significantly affected by increasing winter temperatures. We assessed physiological parameters (photosynthesis,...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.903529 2023-05-15T14:26:28+02:00 Eco-physiological data on Laminaria solidungula and Saccharina latissima from Kongsfjorden, Spitsbergen, during the polar night 2016/17 Scheschonk, Lydia Becker, Stefan Hehemann, Jan-Hendrik Diehl, Nora Karsten, Ulf Bischof, Kai MEDIAN LATITUDE: 78.954000 * MEDIAN LONGITUDE: 11.938000 * SOUTH-BOUND LATITUDE: 78.930000 * WEST-BOUND LONGITUDE: 11.930000 * NORTH-BOUND LATITUDE: 78.990000 * EAST-BOUND LONGITUDE: 11.950000 2019-07-04 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.903529 https://doi.org/10.1594/PANGAEA.903529 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.903529 https://doi.org/10.1594/PANGAEA.903529 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Scheschonk, Lydia; Becker, Stefan; Hehemann, Jan-Hendrik; Diehl, Nora; Karsten, Ulf; Bischof, Kai (2019): Arctic kelp eco-physiology during the polar night in the face of global warming: a crucial role for laminarin. Marine Ecology Progress Series, 611, 59-74, https://doi.org/10.3354/meps12860 Arctic climate change Eco-physiology kelps Kongsfjorden polar night Svalbard Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.903529 https://doi.org/10.3354/meps12860 2023-01-20T07:34:21Z Kelps, perennial brown seaweeds of the order Laminariales, are foundational species in Arctic coastal ecosystems. Presently, their ability to persist under polar night conditions might be significantly affected by increasing winter temperatures. We assessed physiological parameters (photosynthesis, pigment content, respiration, carbohydrate storage) in two species of Arctic kelp, the boreal-temperate Saccharina latissima and the Arctic-endemic Laminaria solidungula, during the polar night 2016/17. Algae were sampled from Kongsfjorden, Svalbard, 78° 55' N, shortly before the onset of the dark period in October, and at the end of the polar night in early February. Analyses were conducted for different tissue sections along the phylloid (Meristem, Centre Region, Distal Region). Data suggest that kelp maintain their photosynthetic competence throughout the entire winter period, as indicated by PE-curve-parameters, and photosynthetic pigment contents. Overall laminarin content was reduced by 96 % in S. latissima, and by 90 % in L. solidungula during winter indicating that this storage glucan fuelled metabolic function during the polar night. Marked differences in laminarin content between the phylloid regions and across species indicated specific adaptive mechanisms between boreal-temperate and Arctic-endemic kelp. We suggest that laminarin turnover represents a sensitive parameter to assess kelp physiology under a changing temperature regime. Dataset Arctic Arctic Climate change Kongsfjord* Kongsfjorden polar night Svalbard Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science Arctic Svalbard ENVELOPE(11.930000,11.950000,78.990000,78.930000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic climate change Eco-physiology kelps Kongsfjorden polar night Svalbard |
spellingShingle |
Arctic climate change Eco-physiology kelps Kongsfjorden polar night Svalbard Scheschonk, Lydia Becker, Stefan Hehemann, Jan-Hendrik Diehl, Nora Karsten, Ulf Bischof, Kai Eco-physiological data on Laminaria solidungula and Saccharina latissima from Kongsfjorden, Spitsbergen, during the polar night 2016/17 |
topic_facet |
Arctic climate change Eco-physiology kelps Kongsfjorden polar night Svalbard |
description |
Kelps, perennial brown seaweeds of the order Laminariales, are foundational species in Arctic coastal ecosystems. Presently, their ability to persist under polar night conditions might be significantly affected by increasing winter temperatures. We assessed physiological parameters (photosynthesis, pigment content, respiration, carbohydrate storage) in two species of Arctic kelp, the boreal-temperate Saccharina latissima and the Arctic-endemic Laminaria solidungula, during the polar night 2016/17. Algae were sampled from Kongsfjorden, Svalbard, 78° 55' N, shortly before the onset of the dark period in October, and at the end of the polar night in early February. Analyses were conducted for different tissue sections along the phylloid (Meristem, Centre Region, Distal Region). Data suggest that kelp maintain their photosynthetic competence throughout the entire winter period, as indicated by PE-curve-parameters, and photosynthetic pigment contents. Overall laminarin content was reduced by 96 % in S. latissima, and by 90 % in L. solidungula during winter indicating that this storage glucan fuelled metabolic function during the polar night. Marked differences in laminarin content between the phylloid regions and across species indicated specific adaptive mechanisms between boreal-temperate and Arctic-endemic kelp. We suggest that laminarin turnover represents a sensitive parameter to assess kelp physiology under a changing temperature regime. |
format |
Dataset |
author |
Scheschonk, Lydia Becker, Stefan Hehemann, Jan-Hendrik Diehl, Nora Karsten, Ulf Bischof, Kai |
author_facet |
Scheschonk, Lydia Becker, Stefan Hehemann, Jan-Hendrik Diehl, Nora Karsten, Ulf Bischof, Kai |
author_sort |
Scheschonk, Lydia |
title |
Eco-physiological data on Laminaria solidungula and Saccharina latissima from Kongsfjorden, Spitsbergen, during the polar night 2016/17 |
title_short |
Eco-physiological data on Laminaria solidungula and Saccharina latissima from Kongsfjorden, Spitsbergen, during the polar night 2016/17 |
title_full |
Eco-physiological data on Laminaria solidungula and Saccharina latissima from Kongsfjorden, Spitsbergen, during the polar night 2016/17 |
title_fullStr |
Eco-physiological data on Laminaria solidungula and Saccharina latissima from Kongsfjorden, Spitsbergen, during the polar night 2016/17 |
title_full_unstemmed |
Eco-physiological data on Laminaria solidungula and Saccharina latissima from Kongsfjorden, Spitsbergen, during the polar night 2016/17 |
title_sort |
eco-physiological data on laminaria solidungula and saccharina latissima from kongsfjorden, spitsbergen, during the polar night 2016/17 |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.903529 https://doi.org/10.1594/PANGAEA.903529 |
op_coverage |
MEDIAN LATITUDE: 78.954000 * MEDIAN LONGITUDE: 11.938000 * SOUTH-BOUND LATITUDE: 78.930000 * WEST-BOUND LONGITUDE: 11.930000 * NORTH-BOUND LATITUDE: 78.990000 * EAST-BOUND LONGITUDE: 11.950000 |
long_lat |
ENVELOPE(11.930000,11.950000,78.990000,78.930000) |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic Climate change Kongsfjord* Kongsfjorden polar night Svalbard Spitsbergen |
genre_facet |
Arctic Arctic Climate change Kongsfjord* Kongsfjorden polar night Svalbard Spitsbergen |
op_source |
Supplement to: Scheschonk, Lydia; Becker, Stefan; Hehemann, Jan-Hendrik; Diehl, Nora; Karsten, Ulf; Bischof, Kai (2019): Arctic kelp eco-physiology during the polar night in the face of global warming: a crucial role for laminarin. Marine Ecology Progress Series, 611, 59-74, https://doi.org/10.3354/meps12860 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.903529 https://doi.org/10.1594/PANGAEA.903529 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.903529 https://doi.org/10.3354/meps12860 |
_version_ |
1766299035694530560 |