Ecosystem maturation follows the warming of the Arctic fjords

Jan Marcin Węsławski , Friedrich Buchholz , Marta Głuchowska , Agata Weydmann

Abstract

wo fjords in West Spitsbergen (Hornsund 77°N and Kongsfjorden 79°N) differ with regard to their exposure towards increasingly warm Atlantic water inflow. Hornsund remains in many respects cooler than Kongsfjorden (on average 2°C SST in summer) and is less influenced by warmer and more saline Atlantic waters. Reported changes in the physical environment (temperature rise, freshwater inflow, salinity drop, turbidity, fast-ice reduction, coastal change) are discussed in the context of biological observations in the pelagic and benthic realms with special reference to krill (Euphausiacea). We conclude that well-documented changes in the physical environment have had little effect on the fjord biota and that both organisms and their ecological functions in the fjords are well adapted to the scale of ongoing change. The observed changes fit the definition of ecosystem maturation, with greater diversity, a more complex food web and dispersed energy flow at the warmer site.
Author Jan Marcin Węsławski
Jan Marcin Węsławski,,
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, Friedrich Buchholz
Friedrich Buchholz,,
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, Marta Głuchowska
Marta Głuchowska,,
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, Agata Weydmann ZBPM
Agata Weydmann,,
- Division of Marine Plankton Research
Journal seriesOceanologia, ISSN 0078-3234
Issue year2017
Vol59
No4
Pages592-602
Publication size in sheets0.5
Keywords in Englishclimate change, regime shift, biodiversity, Arctic, Svalbard, Fjords
DOIDOI:10.1016/j.oceano.2017.02.002
URL https://doi.org/10.1016/j.oceano.2017.02.002
Languageen angielski
LicenseJournal (articles only); author's final; Uznanie Autorstwa - Użycie Niekomercyjne - Bez utworów zależnych (CC-BY-NC-ND); with publication
Score (nominal)20
ScoreMinisterial score = 20.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.5 (2) - 2016=1.341 (5)
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