Impact of climate change on Arctic macroalgal communities
International audience The Arctic region faces a warming rate that is more than twice the global average. Sea-ice loss, increase in precipitation and freshwater discharge, changes in underwater light, and amplification of ocean acidification modify benthic habitats and the communities they host. Her...
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-04004052 https://doi.org/10.1016/j.gloplacha.2022.103980 |
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ftunivnantes:oai:HAL:insu-04004052v1 2023-05-15T14:34:16+02:00 Impact of climate change on Arctic macroalgal communities Lebrun, Anaïs Comeau, Steeve Gazeau, Frédéric Gattuso, Jean-Pierre Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2022 https://hal-insu.archives-ouvertes.fr/insu-04004052 https://doi.org/10.1016/j.gloplacha.2022.103980 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2022.103980 insu-04004052 https://hal-insu.archives-ouvertes.fr/insu-04004052 BIBCODE: 2022GPC.21903980L doi:10.1016/j.gloplacha.2022.103980 ISSN: 0921-8181 Global and Planetary Change https://hal-insu.archives-ouvertes.fr/insu-04004052 Global and Planetary Change, 2022, 219, ⟨10.1016/j.gloplacha.2022.103980⟩ Climate change Macroalgae Arctic Fucoids Kelps Coralline algae [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2022 ftunivnantes https://doi.org/10.1016/j.gloplacha.2022.103980 2023-03-01T00:48:10Z International audience The Arctic region faces a warming rate that is more than twice the global average. Sea-ice loss, increase in precipitation and freshwater discharge, changes in underwater light, and amplification of ocean acidification modify benthic habitats and the communities they host. Here, we synthesize existing information on the impacts of climate change on the macroalgal communities of Arctic coasts. We review the short- and long-term changes in environmental characteristics of shallow hard-bottomed Arctic coasts, the floristics of Arctic macroalgae (description, distribution, life-cycle, adaptations), the responses of their biological and ecological processes to climate change, the resulting winning and losing species, and the effects on ecosystem functioning. The focus of this review is on fucoid species, kelps, and coralline algae which are key ecosystem engineers in hard-bottom shallow areas of the Arctic, providing food, substrate, shelter, and nursery ground for many species. Changes in seasonality, benthic functional diversity, food-web structure, and carbon cycle are already occurring and are reshaping Arctic benthic ecosystems. Shallow communities are projected to shift from invertebrate- to algal-dominated communities. Fucoid and several kelp species are expected to largely spread and dominate the area with possible extinctions of native species. A considerable amount of functional diversity could be lost impacting the processing of land-derived nutrients and organic matter and significantly altering trophic structure and energy flow up to the apex consumers. However, many factors are not well understood yet, making it difficult to appreciate the current situation and predict the future coastal Arctic ecosystem. Efforts must be made to improve knowledge in key regions with proper seasonal coverage, taking into account interactions between stressors and across species. Article in Journal/Newspaper Arctic Climate change Ocean acidification Sea ice Université de Nantes: HAL-UNIV-NANTES Arctic Global and Planetary Change 219 103980 |
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Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Climate change Macroalgae Arctic Fucoids Kelps Coralline algae [SDU]Sciences of the Universe [physics] |
spellingShingle |
Climate change Macroalgae Arctic Fucoids Kelps Coralline algae [SDU]Sciences of the Universe [physics] Lebrun, Anaïs Comeau, Steeve Gazeau, Frédéric Gattuso, Jean-Pierre Impact of climate change on Arctic macroalgal communities |
topic_facet |
Climate change Macroalgae Arctic Fucoids Kelps Coralline algae [SDU]Sciences of the Universe [physics] |
description |
International audience The Arctic region faces a warming rate that is more than twice the global average. Sea-ice loss, increase in precipitation and freshwater discharge, changes in underwater light, and amplification of ocean acidification modify benthic habitats and the communities they host. Here, we synthesize existing information on the impacts of climate change on the macroalgal communities of Arctic coasts. We review the short- and long-term changes in environmental characteristics of shallow hard-bottomed Arctic coasts, the floristics of Arctic macroalgae (description, distribution, life-cycle, adaptations), the responses of their biological and ecological processes to climate change, the resulting winning and losing species, and the effects on ecosystem functioning. The focus of this review is on fucoid species, kelps, and coralline algae which are key ecosystem engineers in hard-bottom shallow areas of the Arctic, providing food, substrate, shelter, and nursery ground for many species. Changes in seasonality, benthic functional diversity, food-web structure, and carbon cycle are already occurring and are reshaping Arctic benthic ecosystems. Shallow communities are projected to shift from invertebrate- to algal-dominated communities. Fucoid and several kelp species are expected to largely spread and dominate the area with possible extinctions of native species. A considerable amount of functional diversity could be lost impacting the processing of land-derived nutrients and organic matter and significantly altering trophic structure and energy flow up to the apex consumers. However, many factors are not well understood yet, making it difficult to appreciate the current situation and predict the future coastal Arctic ecosystem. Efforts must be made to improve knowledge in key regions with proper seasonal coverage, taking into account interactions between stressors and across species. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Lebrun, Anaïs Comeau, Steeve Gazeau, Frédéric Gattuso, Jean-Pierre |
author_facet |
Lebrun, Anaïs Comeau, Steeve Gazeau, Frédéric Gattuso, Jean-Pierre |
author_sort |
Lebrun, Anaïs |
title |
Impact of climate change on Arctic macroalgal communities |
title_short |
Impact of climate change on Arctic macroalgal communities |
title_full |
Impact of climate change on Arctic macroalgal communities |
title_fullStr |
Impact of climate change on Arctic macroalgal communities |
title_full_unstemmed |
Impact of climate change on Arctic macroalgal communities |
title_sort |
impact of climate change on arctic macroalgal communities |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal-insu.archives-ouvertes.fr/insu-04004052 https://doi.org/10.1016/j.gloplacha.2022.103980 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Ocean acidification Sea ice |
genre_facet |
Arctic Climate change Ocean acidification Sea ice |
op_source |
ISSN: 0921-8181 Global and Planetary Change https://hal-insu.archives-ouvertes.fr/insu-04004052 Global and Planetary Change, 2022, 219, ⟨10.1016/j.gloplacha.2022.103980⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2022.103980 insu-04004052 https://hal-insu.archives-ouvertes.fr/insu-04004052 BIBCODE: 2022GPC.21903980L doi:10.1016/j.gloplacha.2022.103980 |
op_doi |
https://doi.org/10.1016/j.gloplacha.2022.103980 |
container_title |
Global and Planetary Change |
container_volume |
219 |
container_start_page |
103980 |
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1766307342202175488 |