Responses of summer phytoplankton biomass to changes in top-down forcing: Insights from comparative modelling
The present study describes the responses of summer phytoplankton biomass to changes in top-down forcing (expressed as zooplankton mortality) in three ecosystems (the North Sea, the Baltic Sea and the Nordic Seas) across different 3D ecosystem models. In each of the model set-ups, we applied the sam...
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Online Access: | https://research.wur.nl/en/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-top-down- https://doi.org/10.1016/j.ecolmodel.2018.03.003 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/535689 2024-01-14T10:08:48+01:00 Responses of summer phytoplankton biomass to changes in top-down forcing: Insights from comparative modelling Maar, Marie Butenschön, Momme Daewel, Ute Eggert, Anja Fan, Wei Hjøllo, Solfrid S. Hufnagl, Marc Huret, Martin Ji, Rubao Lacroix, Geneviève Peck, Myron A. Radtke, Hagen Sailley, Sévrine Sinerchia, Matteo Skogen, Morten D. Travers-Trolet, Morgane Troost, Tineke A. Van De Wolfshaar, Karen 2018 application/pdf https://research.wur.nl/en/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-top-down- https://doi.org/10.1016/j.ecolmodel.2018.03.003 en eng https://edepot.wur.nl/444583 https://research.wur.nl/en/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-top-down- doi:10.1016/j.ecolmodel.2018.03.003 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Ecological Modelling 376 (2018) ISSN: 0304-3800 Phytoplankton Plankton functional types Trophic cascades Zooplankton mortality ensemble modelling info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2018 ftunivwagenin https://doi.org/10.1016/j.ecolmodel.2018.03.003 2023-12-20T23:16:47Z The present study describes the responses of summer phytoplankton biomass to changes in top-down forcing (expressed as zooplankton mortality) in three ecosystems (the North Sea, the Baltic Sea and the Nordic Seas) across different 3D ecosystem models. In each of the model set-ups, we applied the same changes in the magnitude of mortality (±20%) of the highest trophic zooplankton level (Z1). Model results showed overall dampened responses of phytoplankton relative to Z1 biomass. Phytoplankton responses varied depending on the food web structure and trophic coupling represented in the models. Hence, a priori model assumptions were found to influence cascades and pathways in model estimates and, thus, become highly relevant when examining ecosystem pressures such as fishing and climate change. Especially, the different roles and parameterizations of additional zooplankton groups grazed by Z1, and their importance for the outcome, emphasized the need forbetter calibration data. Spatial variability was high within each model indicating that physics (hydrodynamics and temperature) and nutrient dynamics also play vital roles for ecosystem responses to top-down effects. In conclusion, the model comparison indicated that changes in top-down forcing in combination with the modelled food-web structure affect summer phytoplankton biomass and, thereby, indirectly influence water quality of the systems. Article in Journal/Newspaper Nordic Seas Wageningen UR (University & Research Centre): Digital Library Ecological Modelling 376 54 67 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Phytoplankton Plankton functional types Trophic cascades Zooplankton mortality ensemble modelling |
spellingShingle |
Phytoplankton Plankton functional types Trophic cascades Zooplankton mortality ensemble modelling Maar, Marie Butenschön, Momme Daewel, Ute Eggert, Anja Fan, Wei Hjøllo, Solfrid S. Hufnagl, Marc Huret, Martin Ji, Rubao Lacroix, Geneviève Peck, Myron A. Radtke, Hagen Sailley, Sévrine Sinerchia, Matteo Skogen, Morten D. Travers-Trolet, Morgane Troost, Tineke A. Van De Wolfshaar, Karen Responses of summer phytoplankton biomass to changes in top-down forcing: Insights from comparative modelling |
topic_facet |
Phytoplankton Plankton functional types Trophic cascades Zooplankton mortality ensemble modelling |
description |
The present study describes the responses of summer phytoplankton biomass to changes in top-down forcing (expressed as zooplankton mortality) in three ecosystems (the North Sea, the Baltic Sea and the Nordic Seas) across different 3D ecosystem models. In each of the model set-ups, we applied the same changes in the magnitude of mortality (±20%) of the highest trophic zooplankton level (Z1). Model results showed overall dampened responses of phytoplankton relative to Z1 biomass. Phytoplankton responses varied depending on the food web structure and trophic coupling represented in the models. Hence, a priori model assumptions were found to influence cascades and pathways in model estimates and, thus, become highly relevant when examining ecosystem pressures such as fishing and climate change. Especially, the different roles and parameterizations of additional zooplankton groups grazed by Z1, and their importance for the outcome, emphasized the need forbetter calibration data. Spatial variability was high within each model indicating that physics (hydrodynamics and temperature) and nutrient dynamics also play vital roles for ecosystem responses to top-down effects. In conclusion, the model comparison indicated that changes in top-down forcing in combination with the modelled food-web structure affect summer phytoplankton biomass and, thereby, indirectly influence water quality of the systems. |
format |
Article in Journal/Newspaper |
author |
Maar, Marie Butenschön, Momme Daewel, Ute Eggert, Anja Fan, Wei Hjøllo, Solfrid S. Hufnagl, Marc Huret, Martin Ji, Rubao Lacroix, Geneviève Peck, Myron A. Radtke, Hagen Sailley, Sévrine Sinerchia, Matteo Skogen, Morten D. Travers-Trolet, Morgane Troost, Tineke A. Van De Wolfshaar, Karen |
author_facet |
Maar, Marie Butenschön, Momme Daewel, Ute Eggert, Anja Fan, Wei Hjøllo, Solfrid S. Hufnagl, Marc Huret, Martin Ji, Rubao Lacroix, Geneviève Peck, Myron A. Radtke, Hagen Sailley, Sévrine Sinerchia, Matteo Skogen, Morten D. Travers-Trolet, Morgane Troost, Tineke A. Van De Wolfshaar, Karen |
author_sort |
Maar, Marie |
title |
Responses of summer phytoplankton biomass to changes in top-down forcing: Insights from comparative modelling |
title_short |
Responses of summer phytoplankton biomass to changes in top-down forcing: Insights from comparative modelling |
title_full |
Responses of summer phytoplankton biomass to changes in top-down forcing: Insights from comparative modelling |
title_fullStr |
Responses of summer phytoplankton biomass to changes in top-down forcing: Insights from comparative modelling |
title_full_unstemmed |
Responses of summer phytoplankton biomass to changes in top-down forcing: Insights from comparative modelling |
title_sort |
responses of summer phytoplankton biomass to changes in top-down forcing: insights from comparative modelling |
publishDate |
2018 |
url |
https://research.wur.nl/en/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-top-down- https://doi.org/10.1016/j.ecolmodel.2018.03.003 |
genre |
Nordic Seas |
genre_facet |
Nordic Seas |
op_source |
Ecological Modelling 376 (2018) ISSN: 0304-3800 |
op_relation |
https://edepot.wur.nl/444583 https://research.wur.nl/en/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-top-down- doi:10.1016/j.ecolmodel.2018.03.003 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1016/j.ecolmodel.2018.03.003 |
container_title |
Ecological Modelling |
container_volume |
376 |
container_start_page |
54 |
op_container_end_page |
67 |
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1788063200715997184 |