Carbon balance under a changing light environment
The natural environment of Antarctic seaweeds is characterized by changing seasonal light conditions. The ability to adapt to this light regime is one of the most important prerequisites for their ecological success. Thus, the persistence of seaweeds depends on their capacity to maintain a positive...
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ftconicet:oai:ri.conicet.gov.ar:11336/161455 2023-10-09T21:46:35+02:00 Carbon balance under a changing light environment Deregibus, Dolores Zacher, Katharina Bartsch, Inka Campana, Gabriela Laura Momo, Fernando Roberto Wiencke, Christian Gómez, Iván Quartino, Maria Liliana Gómez, Iván Huovinen, Pirjo application/pdf http://hdl.handle.net/11336/161455 eng eng Springer info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/chapter/10.1007/978-3-030-39448-6_9 info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-030-39448-6_9 http://hdl.handle.net/11336/161455 Deregibus, Dolores; Zacher, Katharina; Bartsch, Inka; Campana, Gabriela Laura; Momo, Fernando Roberto; et al.; Carbon balance under a changing light environment; Springer; 2020; 173-191 978-3-030-39447-9 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ METABOLIC CARBON BALANCE GLACIER RUNOFF LIGHT REQUIREMENTS PHOTOSYNTHESIS PHOTOSYNTHETIC ACCLIMATION TURBIDITY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/bookPart info:ar-repo/semantics/parte de libro ftconicet https://doi.org/10.1007/978-3-030-39448-6_9 2023-09-24T18:38:17Z The natural environment of Antarctic seaweeds is characterized by changing seasonal light conditions. The ability to adapt to this light regime is one of the most important prerequisites for their ecological success. Thus, the persistence of seaweeds depends on their capacity to maintain a positive carbon balance (CB) for buildup of biomass over the course of the year. A positive CB in Antarctica occurs only during the ice-free period in spring and summer, when photosynthetically active radiation (PAR, 400–700 nm) penetrates deeply into the water column. The accumulated carbon compounds during this period are stored and remobilized to support metabolism for the rest of the year. Over the last decades climate warming has induced a severe glacial retreat in Antarctica and has opened newly ice-free areas. Increased sediment runoff, and reduced light penetration due to melting during the warmer months, may lead to a negative CB with changes in the vertical distribution of seaweeds. Furthermore, warmer winters and springs result in earlier sea-ice melt, causing an abrupt increase in light, compensating the reduction in PAR in summer or increasing the annual light budget. Studies performed in Potter Cove, Isla 25 de Mayo/King George Island, reveal that algae growing in newly ice-free areas did not acclimate to the changing light conditions. Lower or even negative CB values in areas close to the glacier runoff seem to be primarily dependent on the incoming PAR that finally determines the lower distribution limit of seaweeds. The present chapter discusses how carbon balance respond to the changing Antarctic light environment and its potential implications for the fate of benthic algal communities. Fil: Deregibus, Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Zacher, Katharina. Alfred-Wegener-Institut. Helmholtz-Zentrum für Polar und ... Book Part Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino Isla 25 de Mayo King George Island Sea ice CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic King George Island Potter Cove Argentino Argentina 25 de Mayo ENVELOPE(-58.000,-58.000,-62.083,-62.083) Dolores ENVELOPE(-58.433,-58.433,-62.233,-62.233) isla 25 de Mayo ENVELOPE(-58.000,-58.000,-62.083,-62.083) 173 191 Cham |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
METABOLIC CARBON BALANCE GLACIER RUNOFF LIGHT REQUIREMENTS PHOTOSYNTHESIS PHOTOSYNTHETIC ACCLIMATION TURBIDITY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
METABOLIC CARBON BALANCE GLACIER RUNOFF LIGHT REQUIREMENTS PHOTOSYNTHESIS PHOTOSYNTHETIC ACCLIMATION TURBIDITY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Deregibus, Dolores Zacher, Katharina Bartsch, Inka Campana, Gabriela Laura Momo, Fernando Roberto Wiencke, Christian Gómez, Iván Quartino, Maria Liliana Carbon balance under a changing light environment |
topic_facet |
METABOLIC CARBON BALANCE GLACIER RUNOFF LIGHT REQUIREMENTS PHOTOSYNTHESIS PHOTOSYNTHETIC ACCLIMATION TURBIDITY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
The natural environment of Antarctic seaweeds is characterized by changing seasonal light conditions. The ability to adapt to this light regime is one of the most important prerequisites for their ecological success. Thus, the persistence of seaweeds depends on their capacity to maintain a positive carbon balance (CB) for buildup of biomass over the course of the year. A positive CB in Antarctica occurs only during the ice-free period in spring and summer, when photosynthetically active radiation (PAR, 400–700 nm) penetrates deeply into the water column. The accumulated carbon compounds during this period are stored and remobilized to support metabolism for the rest of the year. Over the last decades climate warming has induced a severe glacial retreat in Antarctica and has opened newly ice-free areas. Increased sediment runoff, and reduced light penetration due to melting during the warmer months, may lead to a negative CB with changes in the vertical distribution of seaweeds. Furthermore, warmer winters and springs result in earlier sea-ice melt, causing an abrupt increase in light, compensating the reduction in PAR in summer or increasing the annual light budget. Studies performed in Potter Cove, Isla 25 de Mayo/King George Island, reveal that algae growing in newly ice-free areas did not acclimate to the changing light conditions. Lower or even negative CB values in areas close to the glacier runoff seem to be primarily dependent on the incoming PAR that finally determines the lower distribution limit of seaweeds. The present chapter discusses how carbon balance respond to the changing Antarctic light environment and its potential implications for the fate of benthic algal communities. Fil: Deregibus, Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Zacher, Katharina. Alfred-Wegener-Institut. Helmholtz-Zentrum für Polar und ... |
author2 |
Gómez, Iván Huovinen, Pirjo |
format |
Book Part |
author |
Deregibus, Dolores Zacher, Katharina Bartsch, Inka Campana, Gabriela Laura Momo, Fernando Roberto Wiencke, Christian Gómez, Iván Quartino, Maria Liliana |
author_facet |
Deregibus, Dolores Zacher, Katharina Bartsch, Inka Campana, Gabriela Laura Momo, Fernando Roberto Wiencke, Christian Gómez, Iván Quartino, Maria Liliana |
author_sort |
Deregibus, Dolores |
title |
Carbon balance under a changing light environment |
title_short |
Carbon balance under a changing light environment |
title_full |
Carbon balance under a changing light environment |
title_fullStr |
Carbon balance under a changing light environment |
title_full_unstemmed |
Carbon balance under a changing light environment |
title_sort |
carbon balance under a changing light environment |
publisher |
Springer |
url |
http://hdl.handle.net/11336/161455 |
long_lat |
ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-58.433,-58.433,-62.233,-62.233) ENVELOPE(-58.000,-58.000,-62.083,-62.083) |
geographic |
Antarctic King George Island Potter Cove Argentino Argentina 25 de Mayo Dolores isla 25 de Mayo |
geographic_facet |
Antarctic King George Island Potter Cove Argentino Argentina 25 de Mayo Dolores isla 25 de Mayo |
genre |
Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino Isla 25 de Mayo King George Island Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino Isla 25 de Mayo King George Island Sea ice |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/chapter/10.1007/978-3-030-39448-6_9 info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-030-39448-6_9 http://hdl.handle.net/11336/161455 Deregibus, Dolores; Zacher, Katharina; Bartsch, Inka; Campana, Gabriela Laura; Momo, Fernando Roberto; et al.; Carbon balance under a changing light environment; Springer; 2020; 173-191 978-3-030-39447-9 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/978-3-030-39448-6_9 |
container_start_page |
173 |
op_container_end_page |
191 |
op_publisher_place |
Cham |
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1779322318423588864 |