Coral mass bleaching and reef temperatures at Navassa Island, 2006
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Summary
DOI: 10.1016/j.ecss.2010.10.005
DescriptionBleaching and associated mortality is an extreme threat to the persistence of coral populations in the projected warming regime of the next few decades. Recent evidence indicates that thermal bleaching thresholds may be affected by water quality gradients. The unexpected encounter of a coral mass bleaching event at a remote, uninhabited Caribbean island (Navassa) during a routine reef assessment cruise in November 2006 provided the opportunity to characterize bleaching responses and thermal exposure in an oceanic area with negligible continental influence or human impact on water quality. The coral taxa most susceptible to bleaching were Agaricia spp. and Montastraea faveolata. Siderastraea siderea, Diploria spp. and Porites porites were intermediately affected, while Porites astreoides and Montastraea cavernosa were minimally affected and negligible bleaching was observed in Acropora palmata. Bleaching prevalence (colonies > 4 cm diameter) ranged from 0.16 to 0.63 among sites. Deeper sites (between 18 and 37 m) had significantly higher prevalence of bleaching than shallow sites (<10 m). This general pattern of more bleaching in deeper sites also occurred within species. Though exposure to high-temperature stress was not greater at deeper sites, water motion, which may bolster bleaching resistance, was likely less. In situ loggers indicated temperatures over 30 °C initiated at shallow sites in mid-August, at deeper sites in early September, and were persistent at all sites until mid-October. Long term (1983â2007) climatologies constructed from AVHRR SSTs suggest that the mass bleaching event observed at Navassa in 2006 corresponded with greater intensity and duration of warm temperature anomalies than occurred in 2005, for which no in situ observations (bleaching nor temperature) are available.
Document Information
Document Type
Journal article
Document Format
Acrobat Portable Document Format
Distribution Information
Contact Information
No contact information is available for this record.
Please contact the owner organization (SEFSC) for inquiries on this record.
Item Identification
Title: | Coral mass bleaching and reef temperatures at Navassa Island, 2006 |
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Status: | Completed |
Abstract: |
Bleaching and associated mortality is an extreme threat to the persistence of coral populations in the projected warming regime of the next few decades. Recent evidence indicates that thermal bleaching thresholds may be affected by water quality gradients. The unexpected encounter of a coral mass bleaching event at a remote, uninhabited Caribbean island (Navassa) during a routine reef assessment cruise in November 2006 provided the opportunity to characterize bleaching responses and thermal exposure in an oceanic area with negligible continental influence or human impact on water quality. The coral taxa most susceptible to bleaching were Agaricia spp. and Montastraea faveolata. Siderastraea siderea, Diploria spp. and Porites porites were intermediately affected, while Porites astreoides and Montastraea cavernosa were minimally affected and negligible bleaching was observed in Acropora palmata. Bleaching prevalence (colonies > 4 cm diameter) ranged from 0.16 to 0.63 among sites. Deeper sites (between 18 and 37 m) had significantly higher prevalence of bleaching than shallow sites (<10 m). This general pattern of more bleaching in deeper sites also occurred within species. Though exposure to high-temperature stress was not greater at deeper sites, water motion, which may bolster bleaching resistance, was likely less. In situ loggers indicated temperatures over 30 °C initiated at shallow sites in mid-August, at deeper sites in early September, and were persistent at all sites until mid-October. Long term (1983â2007) climatologies constructed from AVHRR SSTs suggest that the mass bleaching event observed at Navassa in 2006 corresponded with greater intensity and duration of warm temperature anomalies than occurred in 2005, for which no in situ observations (bleaching nor temperature) are available. |
Other Citation Details: |
.W. Miller, G.A. Piniak, D.E. Williams, Coral mass bleaching and reef temperatures at Navassa Island, 2006, Estuarine, Coastal and Shelf Science, Volume 91, Issue 1, 2011, Pages 42-50, ISSN 0272-7714, https://doi.org/10.1016/j.ecss.2010.10.005 (http://www.sciencedirect.com/science/article/pii/S0272771410003380) |
DOI (Digital Object Identifier): | 10.1016/j.ecss.2010.10.005 |
DOI Registration Authority: | Elsevier Wordmark |
DOI Issue Date: | 2011-01-01 |
Keywords
Theme Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
CoRis Theme | EARTH SCIENCE > Oceans > Marine Biology > Marine Invertebrates > Biomass |
CoRis Theme | EARTH SCIENCE > Oceans > Marine Biology > Marine Invertebrates > Census > Macroinvertebrates |
NODC DATA TYPES | ANIMALS - INDIVIDUAL - MASS |
Temporal Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
None | 2005 |
None | 2006 |
Instrument Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
None | 1-m2 drop sampler |
Document Information
Document Type: | Journal article |
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Format: | Acrobat Portable Document Format |
Status Code: | Published |
Support Roles
Co-Author
Date Effective From: | 2010 |
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Date Effective To: | |
Contact (Person): | Williams, Dana E |
Address: |
75 Virginia Beach Drive Miami, FL 33149 Unites States |
Email Address: | dana.williams@noaa.gov |
Phone: | 305-767-3262 |
URL: | https://www.researchgate.net/profile/Dana_Williams3 |
Distribution Information
Distribution 1
Start Date: | 2011 |
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End Date: | Present |
Download URL: | https://www.sciencedirect.com/science/article/pii/S0272771410003380?via%3Dihub |
Distributor: | |
Compression: | Uncompressed |
Review Status: | Chked Viruses Inapp Content |
Catalog Details
Catalog Item ID: | 56739 |
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GUID: | gov.noaa.nmfs.inport:56739 |
Metadata Record Created By: | Lee M Weinberger |
Metadata Record Created: | 2019-06-24 14:19+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-08-15 17:09+0000 |
Metadata Record Published: | 2022-04-27 |
Owner Org: | SEFSC |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2022-04-27 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2023-04-27 |