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...
Published in: | Ecological Modelling |
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Main Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2018
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Online Access: | https://pure.au.dk/portal/da/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-topdown-forcing(d3b84e6a-8cfc-423c-b197-707e2a2cb9fd).html https://doi.org/10.1016/j.ecolmodel.2018.03.003 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/d3b84e6a-8cfc-423c-b197-707e2a2cb9fd 2023-12-31T10:20:22+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 Sætre 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 https://pure.au.dk/portal/da/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-topdown-forcing(d3b84e6a-8cfc-423c-b197-707e2a2cb9fd).html https://doi.org/10.1016/j.ecolmodel.2018.03.003 eng eng https://pure.au.dk/portal/da/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-topdown-forcing(d3b84e6a-8cfc-423c-b197-707e2a2cb9fd).html info:eu-repo/semantics/closedAccess Maar , M , Butenschön , M , Daewel , U , Eggert , A , Fan , W , Hjøllo , S S , Hufnagl , M , Huret , M , Ji , R , Lacroix , G , Peck , M A , Radtke , H , Sailley , S , Sinerchia , M , Skogen , M D , Travers-Trolet , M , Troost , T A & van de Wolfshaar , K 2018 , ' Responses of summer phytoplankton biomass to changes in top-down forcing : Insights from comparative modelling ' , Ecological Modelling , vol. 376 , pp. 54-67 . https://doi.org/10.1016/j.ecolmodel.2018.03.003 ensemble modelling phytoplankton plankton functional types trophic cascades zooplankton mortality article 2018 ftuniaarhuspubl https://doi.org/10.1016/j.ecolmodel.2018.03.003 2023-12-07T00:02:39Z 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 for better 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 Aarhus University: Research Ecological Modelling 376 54 67 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
ensemble modelling phytoplankton plankton functional types trophic cascades zooplankton mortality |
spellingShingle |
ensemble modelling phytoplankton plankton functional types trophic cascades zooplankton mortality Maar, Marie Butenschön, Momme Daewel, Ute Eggert, Anja Fan, Wei Hjøllo, Solfrid Sætre 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 |
ensemble modelling phytoplankton plankton functional types trophic cascades zooplankton mortality |
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 for better 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 Sætre 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 Sætre 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://pure.au.dk/portal/da/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-topdown-forcing(d3b84e6a-8cfc-423c-b197-707e2a2cb9fd).html https://doi.org/10.1016/j.ecolmodel.2018.03.003 |
genre |
Nordic Seas |
genre_facet |
Nordic Seas |
op_source |
Maar , M , Butenschön , M , Daewel , U , Eggert , A , Fan , W , Hjøllo , S S , Hufnagl , M , Huret , M , Ji , R , Lacroix , G , Peck , M A , Radtke , H , Sailley , S , Sinerchia , M , Skogen , M D , Travers-Trolet , M , Troost , T A & van de Wolfshaar , K 2018 , ' Responses of summer phytoplankton biomass to changes in top-down forcing : Insights from comparative modelling ' , Ecological Modelling , vol. 376 , pp. 54-67 . https://doi.org/10.1016/j.ecolmodel.2018.03.003 |
op_relation |
https://pure.au.dk/portal/da/publications/responses-of-summer-phytoplankton-biomass-to-changes-in-topdown-forcing(d3b84e6a-8cfc-423c-b197-707e2a2cb9fd).html |
op_rights |
info:eu-repo/semantics/closedAccess |
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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1786830698182606848 |