Journal article:
Local and continental-scale controls of the onset of spring phytoplankton blooms : conclusions from a proxy-based model

No Thumbnail Available
Date
May 2021
Editors
Jöhnk, Klaus D.
Diehl, Sebastian
relationships.isEditorOf
Contact
Journal ISSN
Electronic ISSN
ISBN
Bibliographical data
Publisher
Series
DOI (citable link)
ArXiv-ID
International patent number
Link to the license
Project
EU project number
Open Access publication
Collections
Restricted until
Title in another language
Research Projects
Organizational Units
Journal Issue
Publication type
Journal article
Publication status
Published
Abstract
A key phenological event in the annual cycle of many pelagic ecosystems is the onset of the spring algal bloom (OAB). Descriptions of the factors controlling the OAB in temperate to polar lakes have been limited to isolated studies of single systems and conceptual models. Here we present a validated modelling approach that, for the first time, enables a quantitative prediction of the OAB and a systematic assessment of the processes controlling its timing on a continental scale. We used a weather-driven, 1-dimensional lake model to simulate the seasonal dynamics of the underwater light climate in 16 lake types characterized by the factorial combination of 4 lake depths with 4 levels of water transparency. We did so at 1,962 locations across western Europe and over 31 years (1979-2009). Assuming that phytoplankton production is light-limited in winter, we identified four patterns of OAB control across lake types and climate zones. OAB timing is controlled by (i) the timing of ice-off in ice-covered clear or shallow lakes, (ii) the onset of thermal stratification in sufficiently deep and turbid lakes, and (iii) the seasonal increase in incident radiation in all other lakes, except for (iv) ice-free, shallow and clear lakes in the south, where phytoplankton is not light-limited. The model predicts that OAB timing should respond to two pervasive environmental changes, global warming and browning, in opposite ways. OAB timing should be highly sensitive to warming in lakes where it is controlled by either ice-off or the onset of stratification, but resilient to warming in lakes where it is controlled by incident radiation. Conversely, OAB timing should be most sensitive to browning where it is controlled by incident radiation, but resilient to browning where it is controlled by ice-off or the onset of stratification. Available lake data are consistent with our findings.
Summary in another language
Subject (DDC)
570 Biosciences, Biology
Keywords
Published in
Global change biology ; 27 (2021), 9. - pp. 1976-1990. - Wiley-Blackwell. - ISSN 1354-1013. - eISSN 1365-2486
Conference
Review
undefined / . - undefined, undefined. - (undefined; undefined)
Cite This
ISO 690GRONCHI, Enzo, Klaus D. JÖHNK, Dietmar STRAILE, Sebastian DIEHL, Frank PEETERS, 2021. Local and continental-scale controls of the onset of spring phytoplankton blooms : conclusions from a proxy-based model. In: Global change biology. Wiley-Blackwell. 27(9), pp. 1976-1990. ISSN 1354-1013. eISSN 1365-2486. Available under: doi: 10.1111/gcb.15521
BibTex
@article{Gronchi2021-05Local-52573,
  year={2021},
  doi={10.1111/gcb.15521},
  title={Local and continental-scale controls of the onset of spring phytoplankton blooms : conclusions from a proxy-based model},
  number={9},
  volume={27},
  issn={1354-1013},
  journal={Global change biology},
  pages={1976--1990},
  author={Gronchi, Enzo and Jöhnk, Klaus D. and Straile, Dietmar and Diehl, Sebastian and Peeters, Frank}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/52573">
    <dc:contributor>Peeters, Frank</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/52573/1/Gronchi_2-7zngnx07we5j4.pdf"/>
    <dc:contributor>Jöhnk, Klaus D.</dc:contributor>
    <dc:contributor>Gronchi, Enzo</dc:contributor>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dcterms:abstract xml:lang="eng">A key phenological event in the annual cycle of many pelagic ecosystems is the onset of the spring algal bloom (OAB). Descriptions of the factors controlling the OAB in temperate to polar lakes have been limited to isolated studies of single systems and conceptual models. Here we present a validated modelling approach that, for the first time, enables a quantitative prediction of the OAB and a systematic assessment of the processes controlling its timing on a continental scale. We used a weather-driven, 1-dimensional lake model to simulate the seasonal dynamics of the underwater light climate in 16 lake types characterized by the factorial combination of 4 lake depths with 4 levels of water transparency. We did so at 1,962 locations across western Europe and over 31 years (1979-2009). Assuming that phytoplankton production is light-limited in winter, we identified four patterns of OAB control across lake types and climate zones. OAB timing is controlled by (i) the timing of ice-off in ice-covered clear or shallow lakes, (ii) the onset of thermal stratification in sufficiently deep and turbid lakes, and (iii) the seasonal increase in incident radiation in all other lakes, except for (iv) ice-free, shallow and clear lakes in the south, where phytoplankton is not light-limited. The model predicts that OAB timing should respond to two pervasive environmental changes, global warming and browning, in opposite ways. OAB timing should be highly sensitive to warming in lakes where it is controlled by either ice-off or the onset of stratification, but resilient to warming in lakes where it is controlled by incident radiation. Conversely, OAB timing should be most sensitive to browning where it is controlled by incident radiation, but resilient to browning where it is controlled by ice-off or the onset of stratification. Available lake data are consistent with our findings.</dcterms:abstract>
    <dc:creator>Gronchi, Enzo</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/52573"/>
    <dc:creator>Jöhnk, Klaus D.</dc:creator>
    <dc:rights>Attribution-NonCommercial 4.0 International</dc:rights>
    <dc:creator>Diehl, Sebastian</dc:creator>
    <dc:contributor>Diehl, Sebastian</dc:contributor>
    <dc:creator>Peeters, Frank</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-01-27T12:15:41Z</dcterms:available>
    <dc:contributor>Straile, Dietmar</dc:contributor>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc/4.0/"/>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-01-27T12:15:41Z</dc:date>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:title>Local and continental-scale controls of the onset of spring phytoplankton blooms : conclusions from a proxy-based model</dcterms:title>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/52573/1/Gronchi_2-7zngnx07we5j4.pdf"/>
    <dc:language>eng</dc:language>
    <dcterms:issued>2021-05</dcterms:issued>
    <dc:creator>Straile, Dietmar</dc:creator>
  </rdf:Description>
</rdf:RDF>
Internal note
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Contact
URL of original publication
Test date of URL
Examination date of dissertation
Method of financing
Comment on publication
Alliance license
Corresponding Authors der Uni Konstanz vorhanden
International Co-Authors
Bibliography of Konstanz
Yes
Refereed
Yes
Link to research data
Description of supplementary data