Spatial and seasonal reef calcification in corals and calcareous crusts in the central Red Sea

Handle URI:
http://hdl.handle.net/10754/584007
Title:
Spatial and seasonal reef calcification in corals and calcareous crusts in the central Red Sea
Authors:
Roik, Anna Krystyna ( 0000-0002-8293-8339 ) ; Roder, Cornelia; Röthig, Till ( 0000-0001-6359-8589 ) ; Voolstra, Christian R. ( 0000-0003-4555-3795 )
Abstract:
The existence of coral reef ecosystems critically relies on the reef carbonate framework produced by scleractinian corals and calcareous crusts (i.e., crustose coralline algae). While the Red Sea harbors one of the longest connected reef systems in the world, detailed calcification data are only available from the northernmost part. To fill this knowledge gap, we measured in situ calcification rates of primary and secondary reef builders in the central Red Sea. We collected data on the major habitat-forming coral genera Porites, Acropora, and Pocillopora and also on calcareous crusts (CC) in a spatio-seasonal framework. The scope of the study comprised sheltered and exposed sites of three reefs along a cross-shelf gradient and over four seasons of the year. Calcification of all coral genera was consistent across the shelf and highest in spring. In addition, Pocillopora showed increased calcification at exposed reef sites. In contrast, CC calcification increased from nearshore, sheltered to offshore, exposed reef sites, but also varied over seasons. Comparing our data to other reef locations, calcification in the Red Sea was in the range of data collected from reefs in the Caribbean and Indo-Pacific; however, Acropora calcification estimates were at the lower end of worldwide rates. Our study shows that the increasing coral cover from nearshore to offshore environments aligned with CC calcification but not coral calcification, highlighting the potentially important role of CC in structuring reef cover and habitats. While coral calcification maxima have been typically observed during summer in many reef locations worldwide, calcification maxima during spring in the central Red Sea indicate that summer temperatures exceed the optima of reef calcifiers in this region. This study provides a foundation for comparative efforts and sets a baseline to quantify impact of future environmental change in the central Red Sea.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Spatial and seasonal reef calcification in corals and calcareous crusts in the central Red Sea 2015 Coral Reefs
Publisher:
Springer Nature
Journal:
Coral Reefs
Issue Date:
14-Dec-2015
DOI:
10.1007/s00338-015-1383-y
Type:
Article
ISSN:
0722-4028; 1432-0975
Additional Links:
http://link.springer.com/10.1007/s00338-015-1383-y
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorRoik, Anna Krystynaen
dc.contributor.authorRoder, Corneliaen
dc.contributor.authorRöthig, Tillen
dc.contributor.authorVoolstra, Christian R.en
dc.date.accessioned2015-12-16T13:12:11Zen
dc.date.available2015-12-16T13:12:11Zen
dc.date.issued2015-12-14en
dc.identifier.citationSpatial and seasonal reef calcification in corals and calcareous crusts in the central Red Sea 2015 Coral Reefsen
dc.identifier.issn0722-4028en
dc.identifier.issn1432-0975en
dc.identifier.doi10.1007/s00338-015-1383-yen
dc.identifier.urihttp://hdl.handle.net/10754/584007en
dc.description.abstractThe existence of coral reef ecosystems critically relies on the reef carbonate framework produced by scleractinian corals and calcareous crusts (i.e., crustose coralline algae). While the Red Sea harbors one of the longest connected reef systems in the world, detailed calcification data are only available from the northernmost part. To fill this knowledge gap, we measured in situ calcification rates of primary and secondary reef builders in the central Red Sea. We collected data on the major habitat-forming coral genera Porites, Acropora, and Pocillopora and also on calcareous crusts (CC) in a spatio-seasonal framework. The scope of the study comprised sheltered and exposed sites of three reefs along a cross-shelf gradient and over four seasons of the year. Calcification of all coral genera was consistent across the shelf and highest in spring. In addition, Pocillopora showed increased calcification at exposed reef sites. In contrast, CC calcification increased from nearshore, sheltered to offshore, exposed reef sites, but also varied over seasons. Comparing our data to other reef locations, calcification in the Red Sea was in the range of data collected from reefs in the Caribbean and Indo-Pacific; however, Acropora calcification estimates were at the lower end of worldwide rates. Our study shows that the increasing coral cover from nearshore to offshore environments aligned with CC calcification but not coral calcification, highlighting the potentially important role of CC in structuring reef cover and habitats. While coral calcification maxima have been typically observed during summer in many reef locations worldwide, calcification maxima during spring in the central Red Sea indicate that summer temperatures exceed the optima of reef calcifiers in this region. This study provides a foundation for comparative efforts and sets a baseline to quantify impact of future environmental change in the central Red Sea.en
dc.language.isoenen
dc.publisherSpringer Natureen
dc.relation.urlhttp://link.springer.com/10.1007/s00338-015-1383-yen
dc.rightsArchived with thanks to Coral Reefs. This article is published with open access at Springerlink.comen
dc.subjectCoral reefen
dc.subjectCalcificationen
dc.subjectRed Seaen
dc.subjectBuoyant weighten
dc.subjectSeasonalityen
dc.subjectCross-shelf gradienten
dc.titleSpatial and seasonal reef calcification in corals and calcareous crusts in the central Red Seaen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalCoral Reefsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorRoik, Anna Krystynaen
kaust.authorRoder, Corneliaen
kaust.authorRöthig, Tillen
kaust.authorVoolstra, Christian R.en
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