Two spatial scales in a bleaching event: Corals from the mildest and the most extreme thermal environments escape mortality

Handle URI:
http://hdl.handle.net/10754/554367
Title:
Two spatial scales in a bleaching event: Corals from the mildest and the most extreme thermal environments escape mortality
Authors:
Pineda, Jesús; Starczak, Victoria; Tarrant, Ann; Blythe, Jonathan; Davis, Kristen; Farrar, Tom; Berumen, Michael L. ( 0000-0003-2463-2742 ) ; da Silva, José C. B.
Abstract:
In summer 2010, a bleaching event decimated the abundant reef flat coral Stylophora pistillata in some areas of the central Red Sea, where a series of coral reefs 100–300 m wide by several kilometers long extends from the coastline to about 20 km offshore. Mortality of corals along the exposed and protected sides of inner (inshore) and mid and outer (offshore) reefs and in situ and satellite sea surface temperatures (SSTs) revealed that the variability in the mortality event corresponded to two spatial scales of temperature variability: 300 m across the reef flat and 20 km across a series of reefs. However, the relationship between coral mortality and habitat thermal severity was opposite at the two scales. SSTs in summer 2010 were similar or increased modestly (0.5°C) in the outer and mid reefs relative to 2009. In the inner reef, 2010 temperatures were 1.4°C above the 2009 seasonal maximum for several weeks. We detected little or no coral mortality in mid and outer reefs. In the inner reef, mortality depended on exposure. Within the inner reef, mortality was modest on the protected (shoreward) side, the most severe thermal environment, with highest overall mean and maximum temperatures. In contrast, acute mortality was observed in the exposed (seaward) side, where temperature fluctuations and upper water temperature values were relatively less extreme. Refuges to thermally induced coral bleaching may include sites where extreme, high-frequency thermal variability may select for coral holobionts preadapted to, and physiologically condition corals to withstand, regional increases in water temperature.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Two spatial scales in a bleaching event: Corals from the mildest and the most extreme thermal environments escape mortality 2013, 58 (5):1531 Limnology and Oceanography
Publisher:
Wiley-Blackwell
Journal:
Limnology and Oceanography
Issue Date:
28-Jul-2013
DOI:
10.4319/lo.2013.58.5.1531
Type:
Article
ISSN:
00243590
Additional Links:
http://doi.wiley.com/10.4319/lo.2013.58.5.1531
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorPineda, Jesúsen
dc.contributor.authorStarczak, Victoriaen
dc.contributor.authorTarrant, Annen
dc.contributor.authorBlythe, Jonathanen
dc.contributor.authorDavis, Kristenen
dc.contributor.authorFarrar, Tomen
dc.contributor.authorBerumen, Michael L.en
dc.contributor.authorda Silva, José C. B.en
dc.date.accessioned2015-05-21T06:33:38Zen
dc.date.available2015-05-21T06:33:38Zen
dc.date.issued2013-07-28en
dc.identifier.citationTwo spatial scales in a bleaching event: Corals from the mildest and the most extreme thermal environments escape mortality 2013, 58 (5):1531 Limnology and Oceanographyen
dc.identifier.issn00243590en
dc.identifier.doi10.4319/lo.2013.58.5.1531en
dc.identifier.urihttp://hdl.handle.net/10754/554367en
dc.description.abstractIn summer 2010, a bleaching event decimated the abundant reef flat coral Stylophora pistillata in some areas of the central Red Sea, where a series of coral reefs 100–300 m wide by several kilometers long extends from the coastline to about 20 km offshore. Mortality of corals along the exposed and protected sides of inner (inshore) and mid and outer (offshore) reefs and in situ and satellite sea surface temperatures (SSTs) revealed that the variability in the mortality event corresponded to two spatial scales of temperature variability: 300 m across the reef flat and 20 km across a series of reefs. However, the relationship between coral mortality and habitat thermal severity was opposite at the two scales. SSTs in summer 2010 were similar or increased modestly (0.5°C) in the outer and mid reefs relative to 2009. In the inner reef, 2010 temperatures were 1.4°C above the 2009 seasonal maximum for several weeks. We detected little or no coral mortality in mid and outer reefs. In the inner reef, mortality depended on exposure. Within the inner reef, mortality was modest on the protected (shoreward) side, the most severe thermal environment, with highest overall mean and maximum temperatures. In contrast, acute mortality was observed in the exposed (seaward) side, where temperature fluctuations and upper water temperature values were relatively less extreme. Refuges to thermally induced coral bleaching may include sites where extreme, high-frequency thermal variability may select for coral holobionts preadapted to, and physiologically condition corals to withstand, regional increases in water temperature.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://doi.wiley.com/10.4319/lo.2013.58.5.1531en
dc.rightsArchived with thanks to Limnology and Oceanographyen
dc.titleTwo spatial scales in a bleaching event: Corals from the mildest and the most extreme thermal environments escape mortalityen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalLimnology and Oceanographyen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionBiology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusettsen
dc.contributor.institutionPhysical Oceanography Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusettsen
dc.contributor.institutionInterdisciplinary Centre of Marine and Environmental Research and Department of Geosciences, Environment and Spatial Planning, University of Porto, Porto, Portugalen
dc.contributor.institutionDepartment of Civil and Environmental Engineering, University of California, Irvine, Californiaen
kaust.authorBerumen, Michael L.en
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