Shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic Mediterranean lake
AbstractSatellite data from the Climate Change Initiative (CCI) lakes project were used to examine the influence of climate on chlorophyll-a (Chl-a). Nonparametric multiplicative regression and machine learning were used to explain Chl-a concentration trend and dynamics. The main parameters of impor...
Published in: | Hydrobiologia |
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ftopenaccessrep:oai:zenodo.org:80635 2023-10-25T01:41:32+02:00 Shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic Mediterranean lake Gary Free Mariano Bresciani Monica Pinardi Steef Peters Marnix Laanen Rosalba Padula Alessandra Cingolani Fedra Charavgis Claudia Giardino 2022-01-09 https://www.openaccessrepository.it/record/80635 https://doi.org/10.1007/s10750-021-04773-w eng eng info:eu-repo/grantAgreement/EC/H2020/730066/ url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/80635 doi:10.1007/s10750-021-04773-w info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Energy Research EU-CONEXUS H2020 EOMORES Coordination and support action Innovation action EC Rural Digital Europe European Commission projects Aquatic Science European Space Agency Horizon 2020 Framework Programme info:eu-repo/semantics/article publication-article 2022 ftopenaccessrep https://doi.org/10.1007/s10750-021-04773-w 2023-09-26T22:17:57Z AbstractSatellite data from the Climate Change Initiative (CCI) lakes project were used to examine the influence of climate on chlorophyll-a (Chl-a). Nonparametric multiplicative regression and machine learning were used to explain Chl-a concentration trend and dynamics. The main parameters of importance were seasonality, interannual variation, lake level, water temperature, the North Atlantic Oscillation, and antecedent rainfall. No evidence was found for an earlier onset of the summer phytoplankton bloom related to the earlier onset of warmer temperatures. Instead, a curvilinear relationship between Chl-a and the temperature length of season above 20°C (LOS) was found with longer periods of warmer temperature leading to blooms of shorter duration. We suggest that a longer period of warmer temperatures in the summer may result in earlier uptake of nutrients or increased calcite precipitation resulting in a shortening of the duration of phytoplankton blooms. The current scenario of increasing LOS of temperature with climate change may lead to an alteration of phytoplankton phenological cycles resulting in blooms of shorter duration in lakes where nutrients become limiting. Satellite-derived information on lake temperature and Chl-a concentration proved essential in detecting trends at appropriate resolution over time. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Hydrobiologia 849 17-18 3963 3978 |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
topic |
Energy Research EU-CONEXUS H2020 EOMORES Coordination and support action Innovation action EC Rural Digital Europe European Commission projects Aquatic Science European Space Agency Horizon 2020 Framework Programme |
spellingShingle |
Energy Research EU-CONEXUS H2020 EOMORES Coordination and support action Innovation action EC Rural Digital Europe European Commission projects Aquatic Science European Space Agency Horizon 2020 Framework Programme Gary Free Mariano Bresciani Monica Pinardi Steef Peters Marnix Laanen Rosalba Padula Alessandra Cingolani Fedra Charavgis Claudia Giardino Shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic Mediterranean lake |
topic_facet |
Energy Research EU-CONEXUS H2020 EOMORES Coordination and support action Innovation action EC Rural Digital Europe European Commission projects Aquatic Science European Space Agency Horizon 2020 Framework Programme |
description |
AbstractSatellite data from the Climate Change Initiative (CCI) lakes project were used to examine the influence of climate on chlorophyll-a (Chl-a). Nonparametric multiplicative regression and machine learning were used to explain Chl-a concentration trend and dynamics. The main parameters of importance were seasonality, interannual variation, lake level, water temperature, the North Atlantic Oscillation, and antecedent rainfall. No evidence was found for an earlier onset of the summer phytoplankton bloom related to the earlier onset of warmer temperatures. Instead, a curvilinear relationship between Chl-a and the temperature length of season above 20°C (LOS) was found with longer periods of warmer temperature leading to blooms of shorter duration. We suggest that a longer period of warmer temperatures in the summer may result in earlier uptake of nutrients or increased calcite precipitation resulting in a shortening of the duration of phytoplankton blooms. The current scenario of increasing LOS of temperature with climate change may lead to an alteration of phytoplankton phenological cycles resulting in blooms of shorter duration in lakes where nutrients become limiting. Satellite-derived information on lake temperature and Chl-a concentration proved essential in detecting trends at appropriate resolution over time. |
format |
Article in Journal/Newspaper |
author |
Gary Free Mariano Bresciani Monica Pinardi Steef Peters Marnix Laanen Rosalba Padula Alessandra Cingolani Fedra Charavgis Claudia Giardino |
author_facet |
Gary Free Mariano Bresciani Monica Pinardi Steef Peters Marnix Laanen Rosalba Padula Alessandra Cingolani Fedra Charavgis Claudia Giardino |
author_sort |
Gary Free |
title |
Shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic Mediterranean lake |
title_short |
Shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic Mediterranean lake |
title_full |
Shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic Mediterranean lake |
title_fullStr |
Shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic Mediterranean lake |
title_full_unstemmed |
Shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic Mediterranean lake |
title_sort |
shorter blooms expected with longer warm periods under climate change: an example from a shallow meso-eutrophic mediterranean lake |
publishDate |
2022 |
url |
https://www.openaccessrepository.it/record/80635 https://doi.org/10.1007/s10750-021-04773-w |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/730066/ url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/80635 doi:10.1007/s10750-021-04773-w |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1007/s10750-021-04773-w |
container_title |
Hydrobiologia |
container_volume |
849 |
container_issue |
17-18 |
container_start_page |
3963 |
op_container_end_page |
3978 |
_version_ |
1780737677448970240 |