Rhodolith beds are major CaCO3 bio-factories in the tropical South West Atlantic.
Rhodoliths are nodules of non-geniculate coralline algae that occur in shallow waters (<150 m depth) subjected to episodic disturbance. Rhodolith beds stand with kelp beds, seagrass meadows, and coralline algal reefs as one of the world's four largest macrophyte-dominated benthic communities...
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ftdoajarticles:oai:doaj.org/article:cd9046e4be48410a8da2e6d7640e7fc1 2023-05-15T17:35:12+02:00 Rhodolith beds are major CaCO3 bio-factories in the tropical South West Atlantic. Gilberto M Amado-Filho Rodrigo L Moura Alex C Bastos Leonardo T Salgado Paulo Y Sumida Arthur Z Guth Ronaldo B Francini-Filho Guilherme H Pereira-Filho Douglas P Abrantes Poliana S Brasileiro Ricardo G Bahia Rachel N Leal Les Kaufman Joanie A Kleypas Marcos Farina Fabiano L Thompson 2012-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0035171 https://doaj.org/article/cd9046e4be48410a8da2e6d7640e7fc1 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3335062?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0035171 https://doaj.org/article/cd9046e4be48410a8da2e6d7640e7fc1 PLoS ONE, Vol 7, Iss 4, p e35171 (2012) Medicine R Science Q article 2012 ftdoajarticles https://doi.org/10.1371/journal.pone.0035171 2022-12-31T02:52:12Z Rhodoliths are nodules of non-geniculate coralline algae that occur in shallow waters (<150 m depth) subjected to episodic disturbance. Rhodolith beds stand with kelp beds, seagrass meadows, and coralline algal reefs as one of the world's four largest macrophyte-dominated benthic communities. Geographic distribution of rhodolith beds is discontinuous, with large concentrations off Japan, Australia and the Gulf of California, as well as in the Mediterranean, North Atlantic, eastern Caribbean and Brazil. Although there are major gaps in terms of seabed habitat mapping, the largest rhodolith beds are purported to occur off Brazil, where these communities are recorded across a wide latitudinal range (2°N-27°S). To quantify their extent, we carried out an inter-reefal seabed habitat survey on the Abrolhos Shelf (16°50'-19°45'S) off eastern Brazil, and confirmed the most expansive and contiguous rhodolith bed in the world, covering about 20,900 km(2). Distribution, extent, composition and structure of this bed were assessed with side scan sonar, remotely operated vehicles, and SCUBA. The mean rate of CaCO(3) production was estimated from in situ growth assays at 1.07 kg m(-2) yr(-1), with a total production rate of 0.025 Gt yr(-1), comparable to those of the world's largest biogenic CaCO(3) deposits. These gigantic rhodolith beds, of areal extent equivalent to the Great Barrier Reef, Australia, are a critical, yet poorly understood component of the tropical South Atlantic Ocean. Based on the relatively high vulnerability of coralline algae to ocean acidification, these beds are likely to experience a profound restructuring in the coming decades. Article in Journal/Newspaper North Atlantic Ocean acidification South Atlantic Ocean Directory of Open Access Journals: DOAJ Articles PLoS ONE 7 4 e35171 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Gilberto M Amado-Filho Rodrigo L Moura Alex C Bastos Leonardo T Salgado Paulo Y Sumida Arthur Z Guth Ronaldo B Francini-Filho Guilherme H Pereira-Filho Douglas P Abrantes Poliana S Brasileiro Ricardo G Bahia Rachel N Leal Les Kaufman Joanie A Kleypas Marcos Farina Fabiano L Thompson Rhodolith beds are major CaCO3 bio-factories in the tropical South West Atlantic. |
topic_facet |
Medicine R Science Q |
description |
Rhodoliths are nodules of non-geniculate coralline algae that occur in shallow waters (<150 m depth) subjected to episodic disturbance. Rhodolith beds stand with kelp beds, seagrass meadows, and coralline algal reefs as one of the world's four largest macrophyte-dominated benthic communities. Geographic distribution of rhodolith beds is discontinuous, with large concentrations off Japan, Australia and the Gulf of California, as well as in the Mediterranean, North Atlantic, eastern Caribbean and Brazil. Although there are major gaps in terms of seabed habitat mapping, the largest rhodolith beds are purported to occur off Brazil, where these communities are recorded across a wide latitudinal range (2°N-27°S). To quantify their extent, we carried out an inter-reefal seabed habitat survey on the Abrolhos Shelf (16°50'-19°45'S) off eastern Brazil, and confirmed the most expansive and contiguous rhodolith bed in the world, covering about 20,900 km(2). Distribution, extent, composition and structure of this bed were assessed with side scan sonar, remotely operated vehicles, and SCUBA. The mean rate of CaCO(3) production was estimated from in situ growth assays at 1.07 kg m(-2) yr(-1), with a total production rate of 0.025 Gt yr(-1), comparable to those of the world's largest biogenic CaCO(3) deposits. These gigantic rhodolith beds, of areal extent equivalent to the Great Barrier Reef, Australia, are a critical, yet poorly understood component of the tropical South Atlantic Ocean. Based on the relatively high vulnerability of coralline algae to ocean acidification, these beds are likely to experience a profound restructuring in the coming decades. |
format |
Article in Journal/Newspaper |
author |
Gilberto M Amado-Filho Rodrigo L Moura Alex C Bastos Leonardo T Salgado Paulo Y Sumida Arthur Z Guth Ronaldo B Francini-Filho Guilherme H Pereira-Filho Douglas P Abrantes Poliana S Brasileiro Ricardo G Bahia Rachel N Leal Les Kaufman Joanie A Kleypas Marcos Farina Fabiano L Thompson |
author_facet |
Gilberto M Amado-Filho Rodrigo L Moura Alex C Bastos Leonardo T Salgado Paulo Y Sumida Arthur Z Guth Ronaldo B Francini-Filho Guilherme H Pereira-Filho Douglas P Abrantes Poliana S Brasileiro Ricardo G Bahia Rachel N Leal Les Kaufman Joanie A Kleypas Marcos Farina Fabiano L Thompson |
author_sort |
Gilberto M Amado-Filho |
title |
Rhodolith beds are major CaCO3 bio-factories in the tropical South West Atlantic. |
title_short |
Rhodolith beds are major CaCO3 bio-factories in the tropical South West Atlantic. |
title_full |
Rhodolith beds are major CaCO3 bio-factories in the tropical South West Atlantic. |
title_fullStr |
Rhodolith beds are major CaCO3 bio-factories in the tropical South West Atlantic. |
title_full_unstemmed |
Rhodolith beds are major CaCO3 bio-factories in the tropical South West Atlantic. |
title_sort |
rhodolith beds are major caco3 bio-factories in the tropical south west atlantic. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2012 |
url |
https://doi.org/10.1371/journal.pone.0035171 https://doaj.org/article/cd9046e4be48410a8da2e6d7640e7fc1 |
genre |
North Atlantic Ocean acidification South Atlantic Ocean |
genre_facet |
North Atlantic Ocean acidification South Atlantic Ocean |
op_source |
PLoS ONE, Vol 7, Iss 4, p e35171 (2012) |
op_relation |
http://europepmc.org/articles/PMC3335062?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0035171 https://doaj.org/article/cd9046e4be48410a8da2e6d7640e7fc1 |
op_doi |
https://doi.org/10.1371/journal.pone.0035171 |
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PLoS ONE |
container_volume |
7 |
container_issue |
4 |
container_start_page |
e35171 |
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1766134280166047744 |