Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat

Autores
Deregibus, Dolores; Campana, Gabriela Laura; Neder, Camila; Barnes, David K.A.; Zacher, Katharina; Piscicelli, Juan Manuel; Jerosch, Kerstin; Quartino, Maria Liliana
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The West Antarctic Peninsula (WAP) is a hotspot of physical climate change, especially glacial retreat, particularly in its northern South Shetland Islands (SSI) region. Along coastlines, this process is opening up new ice-free areas, for colonization by a high biodiversity of flora and fauna. At Potter Cove, in the SSI (Isla 25 de Mayo/King George Island), Antarctica, colonization by macroalgae was studied in two newly ice-free areas, a low glacier influence area (LGI), and a high glacier influence area (HGI) differing in the presence of sediment run-off and light penetration, which are driven by levels of glacial influence. We installed artificial substrates (tiles) at 5 m depth to analyze benthic algal colonization and succession for four years (2010–2014). Photosynthetic active radiation (PAR, 400–700 nm), temperature, salinity, and turbidity were monitored at both sites in spring and summer. The turbidity and the light attenuation (Kd) were significantly lower at LGI than at HGI. All tiles were colonized by benthic algae, differing in species identity and successional patterns between areas, and with a significantly higher richness at LGI than HGI in the last year of the experiment. We scaled up a quadrat survey on the natural substrate to estimate benthic algal colonization in newly deglaciated areas across Potter Cove. Warming in recent decades has exposed much new habitat, with macroalgae making up an important part of colonist communities ‘chasing’ such glacier retreat. Our estimation of algal colonization in newly ice-free areas shows an expansion of ∼0.005–0.012 km2 with a carbon standing stock of ∼0.2–0.4 C tons, per year. Life moving into new space in such emerging fjords has the potential to be key for new carbon sinks and export. In sustained climate change scenarios, we expect that the processes of colonization and expansion of benthic assemblages will continue and generate significant transformations in Antarctic coastal ecosystems by increasing primary production, providing new structures, food and refuge to fauna, and capturing and storing more carbon.
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: Campana, Gabriela Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas; Argentina
Fil: Neder, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina. Universidad Nacional de Córdoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Diversidad Biologica y Ecologica. Cat.de Ecologia Marina; Argentina. Helmholtz Centre for Polar and Marine Research; Alemania
Fil: Barnes, David K.A.. British Antarctic Survey; Reino Unido
Fil: Zacher, Katharina. Helmholtz Centre for Polar and Marine Research; Alemania
Fil: Piscicelli, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); Argentina
Fil: Jerosch, Kerstin. Helmholtz Centre for Polar and Marine Research; Alemania
Fil: Quartino, Maria Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Materia
BENTHOS
BIOMASS
CLIMATE CHANGE
COLONIZATION
GLACIER RETREAT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/221655
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreatDeregibus, DoloresCampana, Gabriela LauraNeder, CamilaBarnes, David K.A.Zacher, KatharinaPiscicelli, Juan ManuelJerosch, KerstinQuartino, Maria LilianaBENTHOSBIOMASSCLIMATE CHANGECOLONIZATIONGLACIER RETREAThttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The West Antarctic Peninsula (WAP) is a hotspot of physical climate change, especially glacial retreat, particularly in its northern South Shetland Islands (SSI) region. Along coastlines, this process is opening up new ice-free areas, for colonization by a high biodiversity of flora and fauna. At Potter Cove, in the SSI (Isla 25 de Mayo/King George Island), Antarctica, colonization by macroalgae was studied in two newly ice-free areas, a low glacier influence area (LGI), and a high glacier influence area (HGI) differing in the presence of sediment run-off and light penetration, which are driven by levels of glacial influence. We installed artificial substrates (tiles) at 5 m depth to analyze benthic algal colonization and succession for four years (2010–2014). Photosynthetic active radiation (PAR, 400–700 nm), temperature, salinity, and turbidity were monitored at both sites in spring and summer. The turbidity and the light attenuation (Kd) were significantly lower at LGI than at HGI. All tiles were colonized by benthic algae, differing in species identity and successional patterns between areas, and with a significantly higher richness at LGI than HGI in the last year of the experiment. We scaled up a quadrat survey on the natural substrate to estimate benthic algal colonization in newly deglaciated areas across Potter Cove. Warming in recent decades has exposed much new habitat, with macroalgae making up an important part of colonist communities ‘chasing’ such glacier retreat. Our estimation of algal colonization in newly ice-free areas shows an expansion of ∼0.005–0.012 km2 with a carbon standing stock of ∼0.2–0.4 C tons, per year. Life moving into new space in such emerging fjords has the potential to be key for new carbon sinks and export. In sustained climate change scenarios, we expect that the processes of colonization and expansion of benthic assemblages will continue and generate significant transformations in Antarctic coastal ecosystems by increasing primary production, providing new structures, food and refuge to fauna, and capturing and storing more carbon.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; ArgentinaFil: Campana, Gabriela Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas; ArgentinaFil: Neder, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina. Universidad Nacional de Córdoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Diversidad Biologica y Ecologica. Cat.de Ecologia Marina; Argentina. Helmholtz Centre for Polar and Marine Research; AlemaniaFil: Barnes, David K.A.. British Antarctic Survey; Reino UnidoFil: Zacher, Katharina. Helmholtz Centre for Polar and Marine Research; AlemaniaFil: Piscicelli, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); ArgentinaFil: Jerosch, Kerstin. Helmholtz Centre for Polar and Marine Research; AlemaniaFil: Quartino, Maria Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaElsevier2023-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/221655Deregibus, Dolores; Campana, Gabriela Laura; Neder, Camila; Barnes, David K.A.; Zacher, Katharina; et al.; Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat; Elsevier; Marine Environmental Research; 189; 106056; 7-2023; 1-120141-1136CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0141113623001848info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marenvres.2023.106056info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:41:48Zoai:ri.conicet.gov.ar:11336/221655instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:41:49.113CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat
title Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat
spellingShingle Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat
Deregibus, Dolores
BENTHOS
BIOMASS
CLIMATE CHANGE
COLONIZATION
GLACIER RETREAT
title_short Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat
title_full Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat
title_fullStr Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat
title_full_unstemmed Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat
title_sort Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat
dc.creator.none.fl_str_mv Deregibus, Dolores
Campana, Gabriela Laura
Neder, Camila
Barnes, David K.A.
Zacher, Katharina
Piscicelli, Juan Manuel
Jerosch, Kerstin
Quartino, Maria Liliana
author Deregibus, Dolores
author_facet Deregibus, Dolores
Campana, Gabriela Laura
Neder, Camila
Barnes, David K.A.
Zacher, Katharina
Piscicelli, Juan Manuel
Jerosch, Kerstin
Quartino, Maria Liliana
author_role author
author2 Campana, Gabriela Laura
Neder, Camila
Barnes, David K.A.
Zacher, Katharina
Piscicelli, Juan Manuel
Jerosch, Kerstin
Quartino, Maria Liliana
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv BENTHOS
BIOMASS
CLIMATE CHANGE
COLONIZATION
GLACIER RETREAT
topic BENTHOS
BIOMASS
CLIMATE CHANGE
COLONIZATION
GLACIER RETREAT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The West Antarctic Peninsula (WAP) is a hotspot of physical climate change, especially glacial retreat, particularly in its northern South Shetland Islands (SSI) region. Along coastlines, this process is opening up new ice-free areas, for colonization by a high biodiversity of flora and fauna. At Potter Cove, in the SSI (Isla 25 de Mayo/King George Island), Antarctica, colonization by macroalgae was studied in two newly ice-free areas, a low glacier influence area (LGI), and a high glacier influence area (HGI) differing in the presence of sediment run-off and light penetration, which are driven by levels of glacial influence. We installed artificial substrates (tiles) at 5 m depth to analyze benthic algal colonization and succession for four years (2010–2014). Photosynthetic active radiation (PAR, 400–700 nm), temperature, salinity, and turbidity were monitored at both sites in spring and summer. The turbidity and the light attenuation (Kd) were significantly lower at LGI than at HGI. All tiles were colonized by benthic algae, differing in species identity and successional patterns between areas, and with a significantly higher richness at LGI than HGI in the last year of the experiment. We scaled up a quadrat survey on the natural substrate to estimate benthic algal colonization in newly deglaciated areas across Potter Cove. Warming in recent decades has exposed much new habitat, with macroalgae making up an important part of colonist communities ‘chasing’ such glacier retreat. Our estimation of algal colonization in newly ice-free areas shows an expansion of ∼0.005–0.012 km2 with a carbon standing stock of ∼0.2–0.4 C tons, per year. Life moving into new space in such emerging fjords has the potential to be key for new carbon sinks and export. In sustained climate change scenarios, we expect that the processes of colonization and expansion of benthic assemblages will continue and generate significant transformations in Antarctic coastal ecosystems by increasing primary production, providing new structures, food and refuge to fauna, and capturing and storing more carbon.
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: Campana, Gabriela Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas; Argentina
Fil: Neder, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina. Universidad Nacional de Córdoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Diversidad Biologica y Ecologica. Cat.de Ecologia Marina; Argentina. Helmholtz Centre for Polar and Marine Research; Alemania
Fil: Barnes, David K.A.. British Antarctic Survey; Reino Unido
Fil: Zacher, Katharina. Helmholtz Centre for Polar and Marine Research; Alemania
Fil: Piscicelli, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); Argentina
Fil: Jerosch, Kerstin. Helmholtz Centre for Polar and Marine Research; Alemania
Fil: Quartino, Maria Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
description The West Antarctic Peninsula (WAP) is a hotspot of physical climate change, especially glacial retreat, particularly in its northern South Shetland Islands (SSI) region. Along coastlines, this process is opening up new ice-free areas, for colonization by a high biodiversity of flora and fauna. At Potter Cove, in the SSI (Isla 25 de Mayo/King George Island), Antarctica, colonization by macroalgae was studied in two newly ice-free areas, a low glacier influence area (LGI), and a high glacier influence area (HGI) differing in the presence of sediment run-off and light penetration, which are driven by levels of glacial influence. We installed artificial substrates (tiles) at 5 m depth to analyze benthic algal colonization and succession for four years (2010–2014). Photosynthetic active radiation (PAR, 400–700 nm), temperature, salinity, and turbidity were monitored at both sites in spring and summer. The turbidity and the light attenuation (Kd) were significantly lower at LGI than at HGI. All tiles were colonized by benthic algae, differing in species identity and successional patterns between areas, and with a significantly higher richness at LGI than HGI in the last year of the experiment. We scaled up a quadrat survey on the natural substrate to estimate benthic algal colonization in newly deglaciated areas across Potter Cove. Warming in recent decades has exposed much new habitat, with macroalgae making up an important part of colonist communities ‘chasing’ such glacier retreat. Our estimation of algal colonization in newly ice-free areas shows an expansion of ∼0.005–0.012 km2 with a carbon standing stock of ∼0.2–0.4 C tons, per year. Life moving into new space in such emerging fjords has the potential to be key for new carbon sinks and export. In sustained climate change scenarios, we expect that the processes of colonization and expansion of benthic assemblages will continue and generate significant transformations in Antarctic coastal ecosystems by increasing primary production, providing new structures, food and refuge to fauna, and capturing and storing more carbon.
publishDate 2023
dc.date.none.fl_str_mv 2023-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/221655
Deregibus, Dolores; Campana, Gabriela Laura; Neder, Camila; Barnes, David K.A.; Zacher, Katharina; et al.; Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat; Elsevier; Marine Environmental Research; 189; 106056; 7-2023; 1-12
0141-1136
CONICET Digital
CONICET
url http://hdl.handle.net/11336/221655
identifier_str_mv Deregibus, Dolores; Campana, Gabriela Laura; Neder, Camila; Barnes, David K.A.; Zacher, Katharina; et al.; Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat; Elsevier; Marine Environmental Research; 189; 106056; 7-2023; 1-12
0141-1136
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0141113623001848
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marenvres.2023.106056
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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