Patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern Patagonia.
The kelp forests of southern Patagonia have a large diversity of habitats, with remote islands, archipelagos, peninsulas, gulfs, channels, and fjords, which are comprised of a mixture of species with temperate and sub-Antarctic distributions, creating a unique ecosystem that is among the least impac...
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2023
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Online Access: | https://doi.org/10.1371/journal.pone.0279200 https://doaj.org/article/84c8b8e43dea4d5aaed904c9cd1bdc94 |
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ftdoajarticles:oai:doaj.org/article:84c8b8e43dea4d5aaed904c9cd1bdc94 2023-05-15T13:48:35+02:00 Patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern Patagonia. Alan M Friedlander Enric Ballesteros Jennifer E Caselle Mathias Hüne Alyssa M Adler Enric Sala 2023-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0279200 https://doaj.org/article/84c8b8e43dea4d5aaed904c9cd1bdc94 EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pone.0279200 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0279200 https://doaj.org/article/84c8b8e43dea4d5aaed904c9cd1bdc94 PLoS ONE, Vol 18, Iss 1, p e0279200 (2023) Medicine R Science Q article 2023 ftdoajarticles https://doi.org/10.1371/journal.pone.0279200 2023-03-26T01:35:40Z The kelp forests of southern Patagonia have a large diversity of habitats, with remote islands, archipelagos, peninsulas, gulfs, channels, and fjords, which are comprised of a mixture of species with temperate and sub-Antarctic distributions, creating a unique ecosystem that is among the least impacted on Earth. We investigated the distribution, diversity, and abundance of marine macroinvertebrate assemblages from the kelp forests of southern Patagonia over a large spatial scale and examined the environmental drivers contributing to the observed patterns in assemblage composition. We analyzed data from 120 quantitative underwater transects (25 x 2 m) conducted within kelp forests in the southern Patagonian fjords in the Kawésqar National Reserve (KNR), the remote Cape Horn (CH) and Diego Ramírez (DR) archipelagos of southern Chile, and the Mitre Peninsula (MP) and Isla de los Estados (IE) in the southern tip of Argentina. We observed rich assemblages of macroinvertebrates among these kelp forests, with a total of 185 unique taxa from 10 phyla and 23 classes/infraorders across the five regions. The number of taxa per transect was highest at IE, followed by MP, CH, and KNR, with the lowest number recorded at DR. The trophic structure of the macroinvertebrate assemblages was explained mostly by wave exposure (28% of the variation), followed by salinity (12%) and the KNR region (11%). KNR was most distinct from the other regions with a greater abundance of deposit feeders, likely driven by low salinity along with high turbidity and nutrients from terrigenous sources and glacial melt. Our study provides the first broad-scale description of the benthic assemblages associated with kelp forests in this vast and little-studied region and helps to establish baselines for an area that is currently lightly influenced by local anthropogenic factors and less impacted by climate change compared with other kelp forests globally. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Patagonia Argentina Cape Horn ENVELOPE(-135.021,-135.021,61.583,61.583) Mitre ENVELOPE(-66.691,-66.691,-66.204,-66.204) The Mitre ENVELOPE(-66.691,-66.691,-66.204,-66.204) Nanoscale Advances 5 1 81 87 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Alan M Friedlander Enric Ballesteros Jennifer E Caselle Mathias Hüne Alyssa M Adler Enric Sala Patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern Patagonia. |
topic_facet |
Medicine R Science Q |
description |
The kelp forests of southern Patagonia have a large diversity of habitats, with remote islands, archipelagos, peninsulas, gulfs, channels, and fjords, which are comprised of a mixture of species with temperate and sub-Antarctic distributions, creating a unique ecosystem that is among the least impacted on Earth. We investigated the distribution, diversity, and abundance of marine macroinvertebrate assemblages from the kelp forests of southern Patagonia over a large spatial scale and examined the environmental drivers contributing to the observed patterns in assemblage composition. We analyzed data from 120 quantitative underwater transects (25 x 2 m) conducted within kelp forests in the southern Patagonian fjords in the Kawésqar National Reserve (KNR), the remote Cape Horn (CH) and Diego Ramírez (DR) archipelagos of southern Chile, and the Mitre Peninsula (MP) and Isla de los Estados (IE) in the southern tip of Argentina. We observed rich assemblages of macroinvertebrates among these kelp forests, with a total of 185 unique taxa from 10 phyla and 23 classes/infraorders across the five regions. The number of taxa per transect was highest at IE, followed by MP, CH, and KNR, with the lowest number recorded at DR. The trophic structure of the macroinvertebrate assemblages was explained mostly by wave exposure (28% of the variation), followed by salinity (12%) and the KNR region (11%). KNR was most distinct from the other regions with a greater abundance of deposit feeders, likely driven by low salinity along with high turbidity and nutrients from terrigenous sources and glacial melt. Our study provides the first broad-scale description of the benthic assemblages associated with kelp forests in this vast and little-studied region and helps to establish baselines for an area that is currently lightly influenced by local anthropogenic factors and less impacted by climate change compared with other kelp forests globally. |
format |
Article in Journal/Newspaper |
author |
Alan M Friedlander Enric Ballesteros Jennifer E Caselle Mathias Hüne Alyssa M Adler Enric Sala |
author_facet |
Alan M Friedlander Enric Ballesteros Jennifer E Caselle Mathias Hüne Alyssa M Adler Enric Sala |
author_sort |
Alan M Friedlander |
title |
Patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern Patagonia. |
title_short |
Patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern Patagonia. |
title_full |
Patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern Patagonia. |
title_fullStr |
Patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern Patagonia. |
title_full_unstemmed |
Patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern Patagonia. |
title_sort |
patterns and drivers of benthic macroinvertebrate assemblages in the kelp forests of southern patagonia. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2023 |
url |
https://doi.org/10.1371/journal.pone.0279200 https://doaj.org/article/84c8b8e43dea4d5aaed904c9cd1bdc94 |
long_lat |
ENVELOPE(-135.021,-135.021,61.583,61.583) ENVELOPE(-66.691,-66.691,-66.204,-66.204) ENVELOPE(-66.691,-66.691,-66.204,-66.204) |
geographic |
Antarctic Patagonia Argentina Cape Horn Mitre The Mitre |
geographic_facet |
Antarctic Patagonia Argentina Cape Horn Mitre The Mitre |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
PLoS ONE, Vol 18, Iss 1, p e0279200 (2023) |
op_relation |
https://doi.org/10.1371/journal.pone.0279200 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0279200 https://doaj.org/article/84c8b8e43dea4d5aaed904c9cd1bdc94 |
op_doi |
https://doi.org/10.1371/journal.pone.0279200 |
container_title |
Nanoscale Advances |
container_volume |
5 |
container_issue |
1 |
container_start_page |
81 |
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87 |
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1766249474597847040 |