Effects of sea ice and wind speed on phytoplankton spring bloom in central and southern Baltic Sea.

In this study, the effects of sea ice and wind speed on the timing and composition of phytoplankton spring bloom in the central and southern Baltic Sea are investigated by a hydrodynamic-biogeochemical model and observational data. The modelling experiment compared the results of a reference run in...

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Main Authors: Ove Pärn, Gennadi Lessin, Adolf Stips
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0242637
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author Ove Pärn
Gennadi Lessin
Adolf Stips
author_facet Ove Pärn
Gennadi Lessin
Adolf Stips
author_sort Ove Pärn
collection DOAJ
description In this study, the effects of sea ice and wind speed on the timing and composition of phytoplankton spring bloom in the central and southern Baltic Sea are investigated by a hydrodynamic-biogeochemical model and observational data. The modelling experiment compared the results of a reference run in the presence of sea ice with those of a run in the absence of sea ice, which confirmed that ecological conditions differed significantly for both the scenarios. It has been found that diatoms dominate the phytoplankton biomass in the absence of sea ice, whereas dinoflagellates dominate the biomass in the presence of thin sea ice. The study concludes that under moderate ice conditions (representing the last few decades), dinoflagellates dominate the spring bloom phytoplankton biomass in the Baltic Sea, whereas diatoms will be dominant in the future as a result of climate change i.e. in the absence of sea ice.
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spelling doaj.art-d21829e6ad8b4c3b89c1597c5a6b30632022-12-21T19:09:46ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01163e024263710.1371/journal.pone.0242637Effects of sea ice and wind speed on phytoplankton spring bloom in central and southern Baltic Sea.Ove PärnGennadi LessinAdolf StipsIn this study, the effects of sea ice and wind speed on the timing and composition of phytoplankton spring bloom in the central and southern Baltic Sea are investigated by a hydrodynamic-biogeochemical model and observational data. The modelling experiment compared the results of a reference run in the presence of sea ice with those of a run in the absence of sea ice, which confirmed that ecological conditions differed significantly for both the scenarios. It has been found that diatoms dominate the phytoplankton biomass in the absence of sea ice, whereas dinoflagellates dominate the biomass in the presence of thin sea ice. The study concludes that under moderate ice conditions (representing the last few decades), dinoflagellates dominate the spring bloom phytoplankton biomass in the Baltic Sea, whereas diatoms will be dominant in the future as a result of climate change i.e. in the absence of sea ice.https://doi.org/10.1371/journal.pone.0242637
spellingShingle Ove Pärn
Gennadi Lessin
Adolf Stips
Effects of sea ice and wind speed on phytoplankton spring bloom in central and southern Baltic Sea.
PLoS ONE
title Effects of sea ice and wind speed on phytoplankton spring bloom in central and southern Baltic Sea.
title_full Effects of sea ice and wind speed on phytoplankton spring bloom in central and southern Baltic Sea.
title_fullStr Effects of sea ice and wind speed on phytoplankton spring bloom in central and southern Baltic Sea.
title_full_unstemmed Effects of sea ice and wind speed on phytoplankton spring bloom in central and southern Baltic Sea.
title_short Effects of sea ice and wind speed on phytoplankton spring bloom in central and southern Baltic Sea.
title_sort effects of sea ice and wind speed on phytoplankton spring bloom in central and southern baltic sea
url https://doi.org/10.1371/journal.pone.0242637
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