An extensive reef system at the Amazon River mouth
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | https://dx.doi.org/10.1126/sciadv.1501252 https://repositorio.unifesp.br/handle/11600/56079 |
Resumo: | Large rivers create major gaps in reef distribution along tropical shelves. The Amazon River represents 20% of the global riverine discharge to the ocean, generating up to a 1.3 x 10(6)-km(2) plume, and extensive muddy bottoms in the equatorial margin of South America. As a result, a wide area of the tropical North Atlantic is heavily affected in terms of salinity, pH, light penetration, and sedimentation. Such unfavorable conditions were thought to imprint a major gap in Western Atlantic reefs. We present an extensive carbonate system off the Amazon mouth, underneath the river plume. Significant carbonate sedimentation occurred during lowstand sea level, and still occurs in the outer shelf, resulting in complex hard-bottom topography. A permanent near-bottom wedge of ocean water, together with the seasonal nature of the plume's eastward retroflection, conditions the existence of this extensive (similar to 9500 km(2)) hard-bottom mosaic. The Amazon reefs transition from accretive to erosional structures and encompass extensive rhodolith beds. Carbonate structures function as a connectivity corridor for wide depth-ranging reef-associated species, being heavily colonized by large sponges and other structure-forming filter feeders that dwell under low light and high levels of particulates. The oxycline between the plume and subplume is associated with chemoautotrophic and anaerobic microbial metabolisms. The system described here provides several insights about the responses of tropical reefs to suboptimal and marginal reef-building conditions, which are accelerating worldwide due to global changes. |
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An extensive reef system at the Amazon River mouthLarge rivers create major gaps in reef distribution along tropical shelves. The Amazon River represents 20% of the global riverine discharge to the ocean, generating up to a 1.3 x 10(6)-km(2) plume, and extensive muddy bottoms in the equatorial margin of South America. As a result, a wide area of the tropical North Atlantic is heavily affected in terms of salinity, pH, light penetration, and sedimentation. Such unfavorable conditions were thought to imprint a major gap in Western Atlantic reefs. We present an extensive carbonate system off the Amazon mouth, underneath the river plume. Significant carbonate sedimentation occurred during lowstand sea level, and still occurs in the outer shelf, resulting in complex hard-bottom topography. A permanent near-bottom wedge of ocean water, together with the seasonal nature of the plume's eastward retroflection, conditions the existence of this extensive (similar to 9500 km(2)) hard-bottom mosaic. The Amazon reefs transition from accretive to erosional structures and encompass extensive rhodolith beds. Carbonate structures function as a connectivity corridor for wide depth-ranging reef-associated species, being heavily colonized by large sponges and other structure-forming filter feeders that dwell under low light and high levels of particulates. The oxycline between the plume and subplume is associated with chemoautotrophic and anaerobic microbial metabolisms. The system described here provides several insights about the responses of tropical reefs to suboptimal and marginal reef-building conditions, which are accelerating worldwide due to global changes.Univ Fed Rio de Janeiro UFRJ, Inst Biol, BR-21941599 Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, COPPE, Inst Alberto Luiz Coimbra Posgrad & Pesquisa Engn, Lab Sistemas Avancados Gestao Prod, BR-21941972 Rio de Janeiro, RJ, BrazilInst Pesquisas Jardim Bot Rio de Janeiro, BR-22460030 Rio De Janeiro, RJ, BrazilUniv Sao Paulo, Inst Oceanog, BR-05508120 Sao Paulo, SP, BrazilUniv Fed Espirito Santo, Dept Oceanog, BR-29199970 Vitoria, ES, BrazilUniv Estadual Norte Fluminense, Lab Ciencias Ambientais, Ctr Biociencias & Biotecnol, BR-28013602 Campos Dos Goytacazes, RJ, BrazilUniv Fed Fluminense, Inst Geociencias, BR-24210346 Niteroi, RJ, BrazilUniv Fed Fluminense, Inst Biol, BR-24210130 Niteroi, RJ, BrazilUniv Fed Rio de Janeiro, Museo Nacl, BR-20940040 Rio De Janeiro, RJ, BrazilFed Univ Para, Inst Estudos Costeiros, BR-68600000 Braganca, PA, BrazilUniv Fed Sao Paulo, Dept Ciencias Mar, BR-11070100 Santos, SP, BrazilUniv Fed Pernambuco, Dept Oceanog, BR-50670901 Recife, PE, BrazilUniv Georgia, Dept Marine Sci, Athens, GA 30602 USAUniv Fed Paraiba, BR-58297000 Rio Tinto, PB, BrazilUniv Estadual Santa Cruz, Dept Ciencias Biol, BR-45650000 Ilheus, BA, BrazilUniv Fed Sao Paulo, Dept Ciencias Mar, BR-11070100 Santos, SP, BrazilWeb of ScienceConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERS)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)BrasoilMCTIBrazilian NavyU.S. NSFGordon and Betty Moore Foundation (GBMF)U.S. NSF: OCE-0934095GBMF: 2293GBMF: 2928Amer Assoc Advancement ScienceUniversidade Federal de São Paulo (UNIFESP)Moura, Rodrigo Leão deAmado-Filho, Gilberto MenezesMoraes, Fernando Coreixas deBrasileiro, Poliana SilvaSalomon, Paulo SergioMahiques, Michaelovitch deBastos, Alex CardosoAlmeida, Marcelo Gomes deSilva, Marques da, JuniorAraujo, Beatriz FerreiraBrito, Frederico PintoRangel, Thiago PessanhaOliveira, Braulio Cherene VazBahia, Ricardo da GamaParanhos, Rodolfo Pinheiro da RochaDias, Rodolfo Jasão SoaresSiegle, EduardoFigueiredo Junior, Alberto Garcia dePereira, Renato CrespoLeal, Camille VictóriaHajdu, EduardoAsp, Nils EdvinGregoracci, Gustavo Bueno [UNIFESP]Neumann-Leitao, SigridYager, Patricia LynnFrancini-Filho, Ronaldo BastosFroes, AdrianaCampeao, MarianaSilva, Bruno SérgioMoreira, Ana Paula BarbosaOliveira, LouisiSoares, Ana CarolinaAraujo, LaisOliveira, Nara LinaTeixeira, João BatistaValle, Rogerio de Aragão Bastos doThompson, Cristiane CarneiroRezende, Carlos Eduardo deThompson, Fabiano Lopes2020-07-22T13:23:11Z2020-07-22T13:23:11Z2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion-application/pdfhttps://dx.doi.org/10.1126/sciadv.1501252Science Advances. Washington, v. 2, n. 4, p. -, 2016.10.1126/sciadv.1501252WOS000380072100012.pdf2375-2548https://repositorio.unifesp.br/handle/11600/56079WOS:000380072100012engScience AdvancesWashingtoninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP2024-08-16T15:30:44Zoai:repositorio.unifesp.br/:11600/56079Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestbiblioteca.csp@unifesp.bropendoar:34652024-08-16T15:30:44Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.none.fl_str_mv |
An extensive reef system at the Amazon River mouth |
title |
An extensive reef system at the Amazon River mouth |
spellingShingle |
An extensive reef system at the Amazon River mouth Moura, Rodrigo Leão de |
title_short |
An extensive reef system at the Amazon River mouth |
title_full |
An extensive reef system at the Amazon River mouth |
title_fullStr |
An extensive reef system at the Amazon River mouth |
title_full_unstemmed |
An extensive reef system at the Amazon River mouth |
title_sort |
An extensive reef system at the Amazon River mouth |
author |
Moura, Rodrigo Leão de |
author_facet |
Moura, Rodrigo Leão de Amado-Filho, Gilberto Menezes Moraes, Fernando Coreixas de Brasileiro, Poliana Silva Salomon, Paulo Sergio Mahiques, Michaelovitch de Bastos, Alex Cardoso Almeida, Marcelo Gomes de Silva, Marques da, Junior Araujo, Beatriz Ferreira Brito, Frederico Pinto Rangel, Thiago Pessanha Oliveira, Braulio Cherene Vaz Bahia, Ricardo da Gama Paranhos, Rodolfo Pinheiro da Rocha Dias, Rodolfo Jasão Soares Siegle, Eduardo Figueiredo Junior, Alberto Garcia de Pereira, Renato Crespo Leal, Camille Victória Hajdu, Eduardo Asp, Nils Edvin Gregoracci, Gustavo Bueno [UNIFESP] Neumann-Leitao, Sigrid Yager, Patricia Lynn Francini-Filho, Ronaldo Bastos Froes, Adriana Campeao, Mariana Silva, Bruno Sérgio Moreira, Ana Paula Barbosa Oliveira, Louisi Soares, Ana Carolina Araujo, Lais Oliveira, Nara Lina Teixeira, João Batista Valle, Rogerio de Aragão Bastos do Thompson, Cristiane Carneiro Rezende, Carlos Eduardo de Thompson, Fabiano Lopes |
author_role |
author |
author2 |
Amado-Filho, Gilberto Menezes Moraes, Fernando Coreixas de Brasileiro, Poliana Silva Salomon, Paulo Sergio Mahiques, Michaelovitch de Bastos, Alex Cardoso Almeida, Marcelo Gomes de Silva, Marques da, Junior Araujo, Beatriz Ferreira Brito, Frederico Pinto Rangel, Thiago Pessanha Oliveira, Braulio Cherene Vaz Bahia, Ricardo da Gama Paranhos, Rodolfo Pinheiro da Rocha Dias, Rodolfo Jasão Soares Siegle, Eduardo Figueiredo Junior, Alberto Garcia de Pereira, Renato Crespo Leal, Camille Victória Hajdu, Eduardo Asp, Nils Edvin Gregoracci, Gustavo Bueno [UNIFESP] Neumann-Leitao, Sigrid Yager, Patricia Lynn Francini-Filho, Ronaldo Bastos Froes, Adriana Campeao, Mariana Silva, Bruno Sérgio Moreira, Ana Paula Barbosa Oliveira, Louisi Soares, Ana Carolina Araujo, Lais Oliveira, Nara Lina Teixeira, João Batista Valle, Rogerio de Aragão Bastos do Thompson, Cristiane Carneiro Rezende, Carlos Eduardo de Thompson, Fabiano Lopes |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Paulo (UNIFESP) |
dc.contributor.author.fl_str_mv |
Moura, Rodrigo Leão de Amado-Filho, Gilberto Menezes Moraes, Fernando Coreixas de Brasileiro, Poliana Silva Salomon, Paulo Sergio Mahiques, Michaelovitch de Bastos, Alex Cardoso Almeida, Marcelo Gomes de Silva, Marques da, Junior Araujo, Beatriz Ferreira Brito, Frederico Pinto Rangel, Thiago Pessanha Oliveira, Braulio Cherene Vaz Bahia, Ricardo da Gama Paranhos, Rodolfo Pinheiro da Rocha Dias, Rodolfo Jasão Soares Siegle, Eduardo Figueiredo Junior, Alberto Garcia de Pereira, Renato Crespo Leal, Camille Victória Hajdu, Eduardo Asp, Nils Edvin Gregoracci, Gustavo Bueno [UNIFESP] Neumann-Leitao, Sigrid Yager, Patricia Lynn Francini-Filho, Ronaldo Bastos Froes, Adriana Campeao, Mariana Silva, Bruno Sérgio Moreira, Ana Paula Barbosa Oliveira, Louisi Soares, Ana Carolina Araujo, Lais Oliveira, Nara Lina Teixeira, João Batista Valle, Rogerio de Aragão Bastos do Thompson, Cristiane Carneiro Rezende, Carlos Eduardo de Thompson, Fabiano Lopes |
description |
Large rivers create major gaps in reef distribution along tropical shelves. The Amazon River represents 20% of the global riverine discharge to the ocean, generating up to a 1.3 x 10(6)-km(2) plume, and extensive muddy bottoms in the equatorial margin of South America. As a result, a wide area of the tropical North Atlantic is heavily affected in terms of salinity, pH, light penetration, and sedimentation. Such unfavorable conditions were thought to imprint a major gap in Western Atlantic reefs. We present an extensive carbonate system off the Amazon mouth, underneath the river plume. Significant carbonate sedimentation occurred during lowstand sea level, and still occurs in the outer shelf, resulting in complex hard-bottom topography. A permanent near-bottom wedge of ocean water, together with the seasonal nature of the plume's eastward retroflection, conditions the existence of this extensive (similar to 9500 km(2)) hard-bottom mosaic. The Amazon reefs transition from accretive to erosional structures and encompass extensive rhodolith beds. Carbonate structures function as a connectivity corridor for wide depth-ranging reef-associated species, being heavily colonized by large sponges and other structure-forming filter feeders that dwell under low light and high levels of particulates. The oxycline between the plume and subplume is associated with chemoautotrophic and anaerobic microbial metabolisms. The system described here provides several insights about the responses of tropical reefs to suboptimal and marginal reef-building conditions, which are accelerating worldwide due to global changes. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2020-07-22T13:23:11Z 2020-07-22T13:23:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://dx.doi.org/10.1126/sciadv.1501252 Science Advances. Washington, v. 2, n. 4, p. -, 2016. 10.1126/sciadv.1501252 WOS000380072100012.pdf 2375-2548 https://repositorio.unifesp.br/handle/11600/56079 WOS:000380072100012 |
url |
https://dx.doi.org/10.1126/sciadv.1501252 https://repositorio.unifesp.br/handle/11600/56079 |
identifier_str_mv |
Science Advances. Washington, v. 2, n. 4, p. -, 2016. 10.1126/sciadv.1501252 WOS000380072100012.pdf 2375-2548 WOS:000380072100012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Science Advances |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
- application/pdf |
dc.coverage.none.fl_str_mv |
Washington |
dc.publisher.none.fl_str_mv |
Amer Assoc Advancement Science |
publisher.none.fl_str_mv |
Amer Assoc Advancement Science |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UNIFESP instname:Universidade Federal de São Paulo (UNIFESP) instacron:UNIFESP |
instname_str |
Universidade Federal de São Paulo (UNIFESP) |
instacron_str |
UNIFESP |
institution |
UNIFESP |
reponame_str |
Repositório Institucional da UNIFESP |
collection |
Repositório Institucional da UNIFESP |
repository.name.fl_str_mv |
Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP) |
repository.mail.fl_str_mv |
biblioteca.csp@unifesp.br |
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1814268330143383552 |