Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela

Thermal anomalies have become more severe, frequent and well-documented across the Caribbean for the past 30 years. This increase in temperature has caused coral bleaching resulting in reef decline. At Los Roques National Park, Venezuela, temperature has been monitored at four reef sites. In mid-Sep...

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Autores: Bastidas, Carolina, Bone, David, Croquer, Aldo, Debrot, Denise, Garcia, Elia, Humanes, Adriana, Ramos, Ruth, Rodríguez, Sebastian
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:Costa Rica
Recursos:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Idioma:inglés
OAI Identifier:oai:portal.ucr.ac.cr:article/19843
Acesso em linha:https://revistas.ucr.ac.cr/index.php/rbt/article/view/19843
Access Level:acceso abierto
Palavra-chave:coral bleaching
mortality
loss of coral cover
caribbean
coral reefs
blanqueamiento coralino
mortalidad
pérdida de cobertura de coral
Caribe
arrecife coralino
id CR_cbd8ad4e60e0c74dfb7cb3900f1c3464
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network_acronym_str CR
network_name_str Costa Rica
repository_id_str
dc.title.none.fl_str_mv Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
title Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
spellingShingle Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
Bastidas, Carolina
coral bleaching
mortality
loss of coral cover
caribbean
coral reefs
blanqueamiento coralino
mortalidad
pérdida de cobertura de coral
Caribe
arrecife coralino
title_short Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
title_full Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
title_fullStr Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
title_full_unstemmed Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
title_sort Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela
dc.creator.none.fl_str_mv Bastidas, Carolina
Bone, David
Croquer, Aldo
Debrot, Denise
Garcia, Elia
Humanes, Adriana
Ramos, Ruth
Rodríguez, Sebastian
author Bastidas, Carolina
author_facet Bastidas, Carolina
Bone, David
Croquer, Aldo
Debrot, Denise
Garcia, Elia
Humanes, Adriana
Ramos, Ruth
Rodríguez, Sebastian
author_role author
author2 Bone, David
Croquer, Aldo
Debrot, Denise
Garcia, Elia
Humanes, Adriana
Ramos, Ruth
Rodríguez, Sebastian
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv coral bleaching
mortality
loss of coral cover
caribbean
coral reefs
blanqueamiento coralino
mortalidad
pérdida de cobertura de coral
Caribe
arrecife coralino
topic coral bleaching
mortality
loss of coral cover
caribbean
coral reefs
blanqueamiento coralino
mortalidad
pérdida de cobertura de coral
Caribe
arrecife coralino
description Thermal anomalies have become more severe, frequent and well-documented across the Caribbean for the past 30 years. This increase in temperature has caused coral bleaching resulting in reef decline. At Los Roques National Park, Venezuela, temperature has been monitored at four reef sites. In mid-September 2010, seawater temperature reached 30.85°C at 5 m depth in Los Roques, an archipelago only slightly affected by previous bleaching events. For example, bleaching in Los Roques in 2005 was mild compared to the rest of the Caribbean and to the results in this study. In 2010, seawater temperatures remained above 29.0°C from mid- August until the first week of November, resulting in +16 Degree Heating Weeks by that time. Our annual survey of four reef sites indicated that 72% of 563 scleractinian colonies were partial or totally bleached (white) or pale (discolored) in October 2010. In February 2011, there were still 46% of coral colonies affected; but most of them were pale and only 2% were bleached. By February, coral cover had declined 4 to 30% per transect, with a mean of 14.3%. Thus, mean coral cover dropped significantly from 45 to 31% cover (a 34% reduction). In addition to bleaching, corals showed a high prevalence (up to 16%) of black band disease in October 2010 and of white plague (11%) in February 2011. As a consequence, coral mortality is expected to be larger than reported here. Reef surveys since 2002 and personal observations for more than 20 years indicated that this bleaching event and its consequences in Los Roques have no precedent. Our results suggest that reef sites with no previous record of significant deterioration are more likely to become affected by thermal anomalies. However, this archipelago is relatively unaffected by local anthropogenic disturbance and has a high coral recruitment, which may contribute to its recovery.
publishDate 2012
dc.date.none.fl_str_mv 2012-03-01
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
Article
artículo original
http://purl.org/coar/resource_type/c_2df8fbb1
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistas.ucr.ac.cr/index.php/rbt/article/view/19843
10.15517/rbt.v60i0.19843
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/19843
identifier_str_mv 10.15517/rbt.v60i0.19843
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ucr.ac.cr/index.php/rbt/article/view/19843/19925
dc.rights.none.fl_str_mv Derechos de autor 2012 Revista de Biología Tropical
acceso abierto
http://purl.org/coar/access_right/c_abf2
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2012 Revista de Biología Tropical
acceso abierto
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad de Costa Rica
publisher.none.fl_str_mv Universidad de Costa Rica
dc.source.none.fl_str_mv Revista de Biología Tropical; Vol. 60 No. S1 (2012): Volume 60 – Supplement 1 – March 2012: Proceedings of the 35th Scientific Meeting of the Association of Marine Laboratories of the Caribbean (AMLC); 29–37
Revista de Biología Tropical; Vol. 60 Núm. S1 (2012): Volumen 60 – Suplemento 1 – Marzo 2012: Memorias de la 35ta Reunión Científica de la Asociación de Laboratorios Marinos del Caribe (ALMC); 29–37
Revista Biología Tropical; Vol. 60 N.º S1 (2012): Volumen 60 – Suplemento 1 – Marzo 2012: Memorias de la 35ta Reunión Científica de la Asociación de Laboratorios Marinos del Caribe (ALMC); 29–37
2215-2075
0034-7744
10.15517/rbt.v60i0
reponame:Portal de Revistas UCR
instname:Universidad de Costa Rica
instacron:UCR
instname_str Universidad de Costa Rica
instacron_str UCR
institution UCR
reponame_str Portal de Revistas UCR
collection Portal de Revistas UCR
repository.name.fl_str_mv Portal de Revistas UCR - Universidad de Costa Rica
repository.mail.fl_str_mv jorge.polanco@ucr.ac.cr
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spelling Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, VenezuelaMassive hard coral loss after a severe bleaching event in 2010 at Los Roques, VenezuelaBastidas, CarolinaBone, DavidCroquer, AldoDebrot, DeniseGarcia, EliaHumanes, AdrianaRamos, RuthRodríguez, Sebastiancoral bleachingmortalityloss of coral covercaribbeancoral reefsblanqueamiento coralinomortalidadpérdida de cobertura de coralCaribearrecife coralinoThermal anomalies have become more severe, frequent and well-documented across the Caribbean for the past 30 years. This increase in temperature has caused coral bleaching resulting in reef decline. At Los Roques National Park, Venezuela, temperature has been monitored at four reef sites. In mid-September 2010, seawater temperature reached 30.85°C at 5 m depth in Los Roques, an archipelago only slightly affected by previous bleaching events. For example, bleaching in Los Roques in 2005 was mild compared to the rest of the Caribbean and to the results in this study. In 2010, seawater temperatures remained above 29.0°C from mid- August until the first week of November, resulting in +16 Degree Heating Weeks by that time. Our annual survey of four reef sites indicated that 72% of 563 scleractinian colonies were partial or totally bleached (white) or pale (discolored) in October 2010. In February 2011, there were still 46% of coral colonies affected; but most of them were pale and only 2% were bleached. By February, coral cover had declined 4 to 30% per transect, with a mean of 14.3%. Thus, mean coral cover dropped significantly from 45 to 31% cover (a 34% reduction). In addition to bleaching, corals showed a high prevalence (up to 16%) of black band disease in October 2010 and of white plague (11%) in February 2011. As a consequence, coral mortality is expected to be larger than reported here. Reef surveys since 2002 and personal observations for more than 20 years indicated that this bleaching event and its consequences in Los Roques have no precedent. Our results suggest that reef sites with no previous record of significant deterioration are more likely to become affected by thermal anomalies. However, this archipelago is relatively unaffected by local anthropogenic disturbance and has a high coral recruitment, which may contribute to its recovery.Durante las últimas décadas las anomalías térmicas han sido más frecuentes y severas en el Caribe, quedando pocos arrecifes exentos de eventos masivos de blanqueamiento (EMB). En el Parque Nacional Los Roques, Venezuela, un archipiélago poco afectado previamente por EMB, la temperatura del agua a 5m de profundidad alcanzó 30,85°C en septiembre 2010, y fue >29,0°C entre mediados de agosto y la primera semana de noviembre en cuatro arrecifes. El 72% de 563 colonias de escleractinios estaban blanqueadas o pálidas para octubre de 2010, mientras que para febrero 2011, el 46% de las colonias aún estaban afectadas. Para febrero 2011, la cobertura béntica coralina promedio disminuyó de 45 a 31%. Además, los arrecifes mostraron una alta prevalencia (de hasta 16%) de enfermedad de banda negra en Octubre 2010, y de plaga blanca (11%) en Febrero 2011. Como consecuencia, es probable que la mortalidad coralina resulte mayor a la reportada acá. Sin embargo, Los Roques es poco afectado por perturbaciones antropogénicas y cuenta con un alto reclutamiento de corales, lo cual podría contribuir a su recuperación.Universidad de Costa Rica2012-03-01info:eu-repo/semantics/publishedVersionArticleartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdfhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/1984310.15517/rbt.v60i0.19843Revista de Biología Tropical; Vol. 60 No. S1 (2012): Volume 60 – Supplement 1 – March 2012: Proceedings of the 35th Scientific Meeting of the Association of Marine Laboratories of the Caribbean (AMLC); 29–37Revista de Biología Tropical; Vol. 60 Núm. S1 (2012): Volumen 60 – Suplemento 1 – Marzo 2012: Memorias de la 35ta Reunión Científica de la Asociación de Laboratorios Marinos del Caribe (ALMC); 29–37Revista Biología Tropical; Vol. 60 N.º S1 (2012): Volumen 60 – Suplemento 1 – Marzo 2012: Memorias de la 35ta Reunión Científica de la Asociación de Laboratorios Marinos del Caribe (ALMC); 29–372215-20750034-774410.15517/rbt.v60i0reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRenghttps://revistas.ucr.ac.cr/index.php/rbt/article/view/19843/19925Derechos de autor 2012 Revista de Biología Tropicalacceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2022-10-18T17:07:26Zoai:portal.ucr.ac.cr:article/19843Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:18:36.763Portal de Revistas UCR - Universidad de Costa Ricafalse
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