Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale

Trends and ecological consequences of phosphorus (P) decline and increasing nitrogen (N) to phosphorus (N:P) ratios in rivers and estuaries are reviewed and discussed. Results suggest that re-oligotrophication is a dominant trend in rivers and estuaries of high-income countries in the last two-three...

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Autores: Ibáñez, Carles, Caiola, Nuno, Barquín, José, Belmar, Oscar, Benito-Granell, Xavier, Casals, Frederic, Fennessy, Siobhan, Hughes, Joselyne, Palmer, Margaret, Peñuelas, Josep, Romero, Estela, Sardans, Jordi, Williams, Michael
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Institut de Recerca i Tecnologia Agroalimentàries (IRTA)
Repositorio:IRTA Pubpro. Open Digital Archive
OAI Identifier:oai:repositori.irta.cat:20.500.12327/2093
Acceso en línea:http://hdl.handle.net/20.500.12327/2093
https://doi.org/10.1111/gcb.16520
Access Level:acceso abierto
Palabra clave:574
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spelling Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scaleIbáñez, CarlesCaiola, NunoBarquín, JoséBelmar, OscarBenito-Granell, XavierCasals, FredericFennessy, SiobhanHughes, JoselynePalmer, MargaretPeñuelas, JosepRomero, EstelaSardans, JordiWilliams, Michael574Trends and ecological consequences of phosphorus (P) decline and increasing nitrogen (N) to phosphorus (N:P) ratios in rivers and estuaries are reviewed and discussed. Results suggest that re-oligotrophication is a dominant trend in rivers and estuaries of high-income countries in the last two-three decades, while in low-income countries widespread eutrophication occurs. The decline in P is well documented in hundreds of rivers of United States and the European Union, but the biotic response of rivers and estuaries besides phytoplankton decline such as trends in phytoplankton composition, changes in primary production, ecosystem shifts, cascading effects, changes in ecosystem metabolism, etc., have not been sufficiently monitored and investigated, neither the effects of N:P imbalance. N:P imbalance has significant ecological effects that need to be further investigated. There is a growing number of cases in which phytoplankton biomass have been shown to decrease due to re-oligotrophication, but the potential regime shift from phytoplankton to macrophyte dominance described in shallow lakes has been documented only in a few rivers and estuaries yet. The main reasons why regime shifts are rarely described in rivers and estuaries are, from one hand the scarcity of data on macrophyte cover trends, and from the other hand physical factors such as peak flows or high turbidity that could prevent a general spread of submerged macrophytes as observed in shallow lakes. Moreover, re-oligotrophication effects on rivers may be different compared to lakes (e.g., lower dominance of macrophytes) or estuaries (e.g., limitation of primary production by N instead of P) or may be dependent on river/estuary type. We conclude that river and estuary re-oligotrophication effects are complex, diverse and still little known, and in some cases are equivalent to those described in shallow lakes, but the regime shift is more likely to occur in mid to high-order rivers and shallow estuaries.info:eu-repo/semantics/publishedVersionWileyProducció AnimalAigües Marines i Continentals202320232022info:eu-repo/semantics/article19application/pdfhttp://hdl.handle.net/20.500.12327/2093https://doi.org/10.1111/gcb.16520reponame:IRTA Pubpro. Open Digital Archiveinstname:Institut de Recerca i Tecnologia Agroalimentàries (IRTA)InglésGlobal Change BiologyAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:repositori.irta.cat:20.500.12327/20932026-06-16T08:51:17Z
dc.title.none.fl_str_mv Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale
title Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale
spellingShingle Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale
Ibáñez, Carles
574
title_short Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale
title_full Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale
title_fullStr Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale
title_full_unstemmed Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale
title_sort Ecosystem-level effects of re-oligotrophication and N:P imbalances in rivers and estuaries on a global scale
dc.creator.none.fl_str_mv Ibáñez, Carles
Caiola, Nuno
Barquín, José
Belmar, Oscar
Benito-Granell, Xavier
Casals, Frederic
Fennessy, Siobhan
Hughes, Joselyne
Palmer, Margaret
Peñuelas, Josep
Romero, Estela
Sardans, Jordi
Williams, Michael
author Ibáñez, Carles
author_facet Ibáñez, Carles
Caiola, Nuno
Barquín, José
Belmar, Oscar
Benito-Granell, Xavier
Casals, Frederic
Fennessy, Siobhan
Hughes, Joselyne
Palmer, Margaret
Peñuelas, Josep
Romero, Estela
Sardans, Jordi
Williams, Michael
author_role author
author2 Caiola, Nuno
Barquín, José
Belmar, Oscar
Benito-Granell, Xavier
Casals, Frederic
Fennessy, Siobhan
Hughes, Joselyne
Palmer, Margaret
Peñuelas, Josep
Romero, Estela
Sardans, Jordi
Williams, Michael
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Producció Animal
Aigües Marines i Continentals
dc.subject.none.fl_str_mv 574
topic 574
description Trends and ecological consequences of phosphorus (P) decline and increasing nitrogen (N) to phosphorus (N:P) ratios in rivers and estuaries are reviewed and discussed. Results suggest that re-oligotrophication is a dominant trend in rivers and estuaries of high-income countries in the last two-three decades, while in low-income countries widespread eutrophication occurs. The decline in P is well documented in hundreds of rivers of United States and the European Union, but the biotic response of rivers and estuaries besides phytoplankton decline such as trends in phytoplankton composition, changes in primary production, ecosystem shifts, cascading effects, changes in ecosystem metabolism, etc., have not been sufficiently monitored and investigated, neither the effects of N:P imbalance. N:P imbalance has significant ecological effects that need to be further investigated. There is a growing number of cases in which phytoplankton biomass have been shown to decrease due to re-oligotrophication, but the potential regime shift from phytoplankton to macrophyte dominance described in shallow lakes has been documented only in a few rivers and estuaries yet. The main reasons why regime shifts are rarely described in rivers and estuaries are, from one hand the scarcity of data on macrophyte cover trends, and from the other hand physical factors such as peak flows or high turbidity that could prevent a general spread of submerged macrophytes as observed in shallow lakes. Moreover, re-oligotrophication effects on rivers may be different compared to lakes (e.g., lower dominance of macrophytes) or estuaries (e.g., limitation of primary production by N instead of P) or may be dependent on river/estuary type. We conclude that river and estuary re-oligotrophication effects are complex, diverse and still little known, and in some cases are equivalent to those described in shallow lakes, but the regime shift is more likely to occur in mid to high-order rivers and shallow estuaries.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12327/2093
https://doi.org/10.1111/gcb.16520
url http://hdl.handle.net/20.500.12327/2093
https://doi.org/10.1111/gcb.16520
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Global Change Biology
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 19
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:IRTA Pubpro. Open Digital Archive
instname:Institut de Recerca i Tecnologia Agroalimentàries (IRTA)
instname_str Institut de Recerca i Tecnologia Agroalimentàries (IRTA)
reponame_str IRTA Pubpro. Open Digital Archive
collection IRTA Pubpro. Open Digital Archive
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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