Glacial melt impacts carbon flows in an Antarctic benthic food web

Autores
Braeckman, Ulrike; Soetaert, Karline; Pasotti, Francesca; Quartino, Maria Liliana; Vanreusel, Ann; Saravia, Leonardo Ariel; Schloss, Irene Ruth; van Oevelen, Dick
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Most coastal glaciers on the West Antarctic Peninsula are in retreat. Glacial ice scouring and lithogenic particle runoff increase turbidity and shape soft sediment benthic communities. This, in turn, has the potential to induce a shift in these systems from an autotrophic to a heterotrophic state. In this study, we investigated the influence of glacial runoff on carbon flows in the softsediment food web of Potter Cove, a well-studied shallow fjord located in the northern region of the West Antarctic Peninsula. We constructed linear inverse food web models using a dataset that includes benthic carbon stocks as well as carbon production and respiration rates. The dataset offers detailed spatial information across three locations and seasonal variations spanning three seasons, reflecting different degrees of disturbance from glacial melt runoff. In these highly resolved food web models, we quantified the carbon flows from various resource compartments (phytoplankton detritus, macroalgae, microphytobenthos, sediment detritus) to consumers (ranging from prokaryotes to various functional groups in meio- and macrofauna). Locations and seasons characterized by high glacial melt runoff exhibited distinct patterns of carbon flow compared to those with low glacial melt runoff. This difference was primarily driven by a less pronounced benthic primary production pathway, an impaired microbial loop and a lower secondary production of the dominant bivalve Aequiyoldia eightsii and other infauna in the location close to the glacier. In contrast, the bivalve Laternula elliptica and meiofauna had the highest secondary production close to the glacier, where they are exposed to high glacial melt runoff. This study shows how the effects of glacial melt propagate from lower to higher trophic levels, thereby affecting the transfer of energy in the ecosystem.
Fil: Braeckman, Ulrike. University of Ghent; Bélgica. Marine Ecology and Management; Bélgica
Fil: Soetaert, Karline. Royal Netherlands Institute For Sea Research; Países Bajos
Fil: Pasotti, Francesca. University of Ghent; Bélgica
Fil: Quartino, Maria Liliana. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Vanreusel, Ann. University of Ghent; Bélgica
Fil: Saravia, Leonardo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina
Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: van Oevelen, Dick. Royal Netherlands Institute For Sea Research; Países Bajos
Materia
Glacial Melt Runoff
Soft-Sediment Food Web
Benthic Communities
Carbon Flow
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/274745
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Glacial melt impacts carbon flows in an Antarctic benthic food webBraeckman, UlrikeSoetaert, KarlinePasotti, FrancescaQuartino, Maria LilianaVanreusel, AnnSaravia, Leonardo ArielSchloss, Irene Ruthvan Oevelen, DickGlacial Melt RunoffSoft-Sediment Food WebBenthic CommunitiesCarbon Flowhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Most coastal glaciers on the West Antarctic Peninsula are in retreat. Glacial ice scouring and lithogenic particle runoff increase turbidity and shape soft sediment benthic communities. This, in turn, has the potential to induce a shift in these systems from an autotrophic to a heterotrophic state. In this study, we investigated the influence of glacial runoff on carbon flows in the softsediment food web of Potter Cove, a well-studied shallow fjord located in the northern region of the West Antarctic Peninsula. We constructed linear inverse food web models using a dataset that includes benthic carbon stocks as well as carbon production and respiration rates. The dataset offers detailed spatial information across three locations and seasonal variations spanning three seasons, reflecting different degrees of disturbance from glacial melt runoff. In these highly resolved food web models, we quantified the carbon flows from various resource compartments (phytoplankton detritus, macroalgae, microphytobenthos, sediment detritus) to consumers (ranging from prokaryotes to various functional groups in meio- and macrofauna). Locations and seasons characterized by high glacial melt runoff exhibited distinct patterns of carbon flow compared to those with low glacial melt runoff. This difference was primarily driven by a less pronounced benthic primary production pathway, an impaired microbial loop and a lower secondary production of the dominant bivalve Aequiyoldia eightsii and other infauna in the location close to the glacier. In contrast, the bivalve Laternula elliptica and meiofauna had the highest secondary production close to the glacier, where they are exposed to high glacial melt runoff. This study shows how the effects of glacial melt propagate from lower to higher trophic levels, thereby affecting the transfer of energy in the ecosystem.Fil: Braeckman, Ulrike. University of Ghent; Bélgica. Marine Ecology and Management; BélgicaFil: Soetaert, Karline. Royal Netherlands Institute For Sea Research; Países BajosFil: Pasotti, Francesca. University of Ghent; BélgicaFil: Quartino, Maria Liliana. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: Vanreusel, Ann. University of Ghent; BélgicaFil: Saravia, Leonardo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; ArgentinaFil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: van Oevelen, Dick. Royal Netherlands Institute For Sea Research; Países BajosFrontiers Media2024-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/274745Braeckman, Ulrike; Soetaert, Karline; Pasotti, Francesca; Quartino, Maria Liliana; Vanreusel, Ann; et al.; Glacial melt impacts carbon flows in an Antarctic benthic food web; Frontiers Media; Frontiers In Marine Science; 11; 3-2024; 1-192296-7745CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fmars.2024.1359597/fullinfo:eu-repo/semantics/altIdentifier/doi/10.3389/fmars.2024.1359597info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T14:07:36Zoai:ri.conicet.gov.ar:11336/274745instacron: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:34982025-12-23 14:07:36.596CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Glacial melt impacts carbon flows in an Antarctic benthic food web
title Glacial melt impacts carbon flows in an Antarctic benthic food web
spellingShingle Glacial melt impacts carbon flows in an Antarctic benthic food web
Braeckman, Ulrike
Glacial Melt Runoff
Soft-Sediment Food Web
Benthic Communities
Carbon Flow
title_short Glacial melt impacts carbon flows in an Antarctic benthic food web
title_full Glacial melt impacts carbon flows in an Antarctic benthic food web
title_fullStr Glacial melt impacts carbon flows in an Antarctic benthic food web
title_full_unstemmed Glacial melt impacts carbon flows in an Antarctic benthic food web
title_sort Glacial melt impacts carbon flows in an Antarctic benthic food web
dc.creator.none.fl_str_mv Braeckman, Ulrike
Soetaert, Karline
Pasotti, Francesca
Quartino, Maria Liliana
Vanreusel, Ann
Saravia, Leonardo Ariel
Schloss, Irene Ruth
van Oevelen, Dick
author Braeckman, Ulrike
author_facet Braeckman, Ulrike
Soetaert, Karline
Pasotti, Francesca
Quartino, Maria Liliana
Vanreusel, Ann
Saravia, Leonardo Ariel
Schloss, Irene Ruth
van Oevelen, Dick
author_role author
author2 Soetaert, Karline
Pasotti, Francesca
Quartino, Maria Liliana
Vanreusel, Ann
Saravia, Leonardo Ariel
Schloss, Irene Ruth
van Oevelen, Dick
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Glacial Melt Runoff
Soft-Sediment Food Web
Benthic Communities
Carbon Flow
topic Glacial Melt Runoff
Soft-Sediment Food Web
Benthic Communities
Carbon Flow
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Most coastal glaciers on the West Antarctic Peninsula are in retreat. Glacial ice scouring and lithogenic particle runoff increase turbidity and shape soft sediment benthic communities. This, in turn, has the potential to induce a shift in these systems from an autotrophic to a heterotrophic state. In this study, we investigated the influence of glacial runoff on carbon flows in the softsediment food web of Potter Cove, a well-studied shallow fjord located in the northern region of the West Antarctic Peninsula. We constructed linear inverse food web models using a dataset that includes benthic carbon stocks as well as carbon production and respiration rates. The dataset offers detailed spatial information across three locations and seasonal variations spanning three seasons, reflecting different degrees of disturbance from glacial melt runoff. In these highly resolved food web models, we quantified the carbon flows from various resource compartments (phytoplankton detritus, macroalgae, microphytobenthos, sediment detritus) to consumers (ranging from prokaryotes to various functional groups in meio- and macrofauna). Locations and seasons characterized by high glacial melt runoff exhibited distinct patterns of carbon flow compared to those with low glacial melt runoff. This difference was primarily driven by a less pronounced benthic primary production pathway, an impaired microbial loop and a lower secondary production of the dominant bivalve Aequiyoldia eightsii and other infauna in the location close to the glacier. In contrast, the bivalve Laternula elliptica and meiofauna had the highest secondary production close to the glacier, where they are exposed to high glacial melt runoff. This study shows how the effects of glacial melt propagate from lower to higher trophic levels, thereby affecting the transfer of energy in the ecosystem.
Fil: Braeckman, Ulrike. University of Ghent; Bélgica. Marine Ecology and Management; Bélgica
Fil: Soetaert, Karline. Royal Netherlands Institute For Sea Research; Países Bajos
Fil: Pasotti, Francesca. University of Ghent; Bélgica
Fil: Quartino, Maria Liliana. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Vanreusel, Ann. University of Ghent; Bélgica
Fil: Saravia, Leonardo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina
Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: van Oevelen, Dick. Royal Netherlands Institute For Sea Research; Países Bajos
description Most coastal glaciers on the West Antarctic Peninsula are in retreat. Glacial ice scouring and lithogenic particle runoff increase turbidity and shape soft sediment benthic communities. This, in turn, has the potential to induce a shift in these systems from an autotrophic to a heterotrophic state. In this study, we investigated the influence of glacial runoff on carbon flows in the softsediment food web of Potter Cove, a well-studied shallow fjord located in the northern region of the West Antarctic Peninsula. We constructed linear inverse food web models using a dataset that includes benthic carbon stocks as well as carbon production and respiration rates. The dataset offers detailed spatial information across three locations and seasonal variations spanning three seasons, reflecting different degrees of disturbance from glacial melt runoff. In these highly resolved food web models, we quantified the carbon flows from various resource compartments (phytoplankton detritus, macroalgae, microphytobenthos, sediment detritus) to consumers (ranging from prokaryotes to various functional groups in meio- and macrofauna). Locations and seasons characterized by high glacial melt runoff exhibited distinct patterns of carbon flow compared to those with low glacial melt runoff. This difference was primarily driven by a less pronounced benthic primary production pathway, an impaired microbial loop and a lower secondary production of the dominant bivalve Aequiyoldia eightsii and other infauna in the location close to the glacier. In contrast, the bivalve Laternula elliptica and meiofauna had the highest secondary production close to the glacier, where they are exposed to high glacial melt runoff. This study shows how the effects of glacial melt propagate from lower to higher trophic levels, thereby affecting the transfer of energy in the ecosystem.
publishDate 2024
dc.date.none.fl_str_mv 2024-03
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/11336/274745
Braeckman, Ulrike; Soetaert, Karline; Pasotti, Francesca; Quartino, Maria Liliana; Vanreusel, Ann; et al.; Glacial melt impacts carbon flows in an Antarctic benthic food web; Frontiers Media; Frontiers In Marine Science; 11; 3-2024; 1-19
2296-7745
CONICET Digital
CONICET
url http://hdl.handle.net/11336/274745
identifier_str_mv Braeckman, Ulrike; Soetaert, Karline; Pasotti, Francesca; Quartino, Maria Liliana; Vanreusel, Ann; et al.; Glacial melt impacts carbon flows in an Antarctic benthic food web; Frontiers Media; Frontiers In Marine Science; 11; 3-2024; 1-19
2296-7745
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.frontiersin.org/articles/10.3389/fmars.2024.1359597/full
info:eu-repo/semantics/altIdentifier/doi/10.3389/fmars.2024.1359597
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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