Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019
Abstract This comprehensive study examines primary production (PP) within the Spitsbergen fjords, Hornsund, and Kongsfjord, over a 25‐year period (1994–2019), across 45 stations and 348 incubation levels at various depths. PP and hydrological parameters were measured at 28 sampling stations in Kongs...
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Online Access: | http://dx.doi.org/10.1002/ece3.11607 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.11607 |
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crwiley:10.1002/ece3.11607 2024-09-15T18:10:57+00:00 Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019 Dragańska‐Deja, Katarzyna Stoń‐Egiert, Joanna Wiktor, Józef Ostrowska, Mirosława Polska Akademia Nauk 2024 http://dx.doi.org/10.1002/ece3.11607 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.11607 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 14, issue 6 ISSN 2045-7758 2045-7758 journal-article 2024 crwiley https://doi.org/10.1002/ece3.11607 2024-07-25T04:19:08Z Abstract This comprehensive study examines primary production (PP) within the Spitsbergen fjords, Hornsund, and Kongsfjord, over a 25‐year period (1994–2019), across 45 stations and 348 incubation levels at various depths. PP and hydrological parameters were measured at 28 sampling stations in Kongsfjorden and 17 in Hornsund, with the locations of “Glacier,” “Inner,” and “Outer” zones defined to reflect the varying influence of glacial meltwater. Our study revealed spatial and temporal variability in PP, both at the surface and within the water column with very high depth resolution. The highest PP values were observed in the Glacier and Inner zones of Hornsund, particularly in the water layer up to 3 m depth, exceeding 20 mgC m −3 h −1 . A notable decline in PP with increasing depth was observed in both fjords, with the Glacier zones displaying the highest productivity at the surface. The study also highlights the influence of glacial meltwater on surface water conditions, affecting the PP in the upper layers of both fjords. The observed gradient in the depth of maximum PP toward the mouth of the fjord varied between the two fjords, with Kongsjord displaying more dynamic variations. The spatial distribution of integrated primary production (Pi) suggested lower productivity in the glacial regions, likely due to light limitation caused by high concentrations of mineral particulate matter. The values of Pi were considerably higher in Hornsund, approximately twice as high overall, with specific emphasis on the Glacier and Inner zones where Pi values were about 6.5 and 2.5 times higher, respectively, when compared to those observed in Kongsfjord. Article in Journal/Newspaper Hornsund Kongsfjord* Kongsfjorden Spitsbergen Wiley Online Library Ecology and Evolution 14 6 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract This comprehensive study examines primary production (PP) within the Spitsbergen fjords, Hornsund, and Kongsfjord, over a 25‐year period (1994–2019), across 45 stations and 348 incubation levels at various depths. PP and hydrological parameters were measured at 28 sampling stations in Kongsfjorden and 17 in Hornsund, with the locations of “Glacier,” “Inner,” and “Outer” zones defined to reflect the varying influence of glacial meltwater. Our study revealed spatial and temporal variability in PP, both at the surface and within the water column with very high depth resolution. The highest PP values were observed in the Glacier and Inner zones of Hornsund, particularly in the water layer up to 3 m depth, exceeding 20 mgC m −3 h −1 . A notable decline in PP with increasing depth was observed in both fjords, with the Glacier zones displaying the highest productivity at the surface. The study also highlights the influence of glacial meltwater on surface water conditions, affecting the PP in the upper layers of both fjords. The observed gradient in the depth of maximum PP toward the mouth of the fjord varied between the two fjords, with Kongsjord displaying more dynamic variations. The spatial distribution of integrated primary production (Pi) suggested lower productivity in the glacial regions, likely due to light limitation caused by high concentrations of mineral particulate matter. The values of Pi were considerably higher in Hornsund, approximately twice as high overall, with specific emphasis on the Glacier and Inner zones where Pi values were about 6.5 and 2.5 times higher, respectively, when compared to those observed in Kongsfjord. |
author2 |
Polska Akademia Nauk |
format |
Article in Journal/Newspaper |
author |
Dragańska‐Deja, Katarzyna Stoń‐Egiert, Joanna Wiktor, Józef Ostrowska, Mirosława |
spellingShingle |
Dragańska‐Deja, Katarzyna Stoń‐Egiert, Joanna Wiktor, Józef Ostrowska, Mirosława Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019 |
author_facet |
Dragańska‐Deja, Katarzyna Stoń‐Egiert, Joanna Wiktor, Józef Ostrowska, Mirosława |
author_sort |
Dragańska‐Deja, Katarzyna |
title |
Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019 |
title_short |
Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019 |
title_full |
Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019 |
title_fullStr |
Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019 |
title_full_unstemmed |
Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019 |
title_sort |
productivity of spitsbergen fjords ecosystems in summer—spatial changes of in situ primary production in kongsfjorden and hornsund in the period 1994–2019 |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1002/ece3.11607 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.11607 |
genre |
Hornsund Kongsfjord* Kongsfjorden Spitsbergen |
genre_facet |
Hornsund Kongsfjord* Kongsfjorden Spitsbergen |
op_source |
Ecology and Evolution volume 14, issue 6 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.11607 |
container_title |
Ecology and Evolution |
container_volume |
14 |
container_issue |
6 |
_version_ |
1810448541587341312 |