Journal Title
Title of Journal: Coral Reefs
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Publisher
Springer Berlin Heidelberg
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Authors: Ilsa B Kuffner Erich Bartels Anastasios Stathakopoulos Ian C Enochs G Kolodziej Lauren T Toth Derek P Manzello
Publish Date: 2017/03/04
Volume: 36, Issue: 3, Pages: 679-684
Abstract
Staghorn coral Acropora cervicornis is a threatened species and the primary focus of western Atlantic reef restoration efforts to date We compared linear extension calcification rate and skeletal density of nurseryraised A cervicornis branches reared for 6 months either on blocks attached to substratum or hanging from PVC trees in the water column We demonstrate that branches grown on the substratum had significantly higher skeletal density measured using computerized tomography and lower linear extension rates compared to watercolumn fragments Calcification rates determined with buoyant weighing were not statistically different between the two growout methods but did vary among coral genotypes Whereas skeletal density and extension rates were plastic traits that depended on growout method calcification rate was conserved Our results show that the two rearing methods generate the same amount of calcium carbonate skeleton but produce colonies with different skeletal characteristics and suggest that there is genetically based variability in coral calcification performanceThis study was funded by the US Geological Survey USGS Coastal and Marine Geology Program We thank the Florida Keys National Marine Sanctuary for permits to work with Acropora cervicornis USGS permit under Kuffner FKNMS2013024A2 and Mote Marine Laboratory working under authorization of The Nature Conservancy permit FKNMS2011150A2 We thank J Morrison C Walter B Reynolds and L Bartlett for help in the field and laboratory We appreciate NOAA’s Coral Reef Conservation Program and Ocean Acidification Program help in funding the CT scanning equipment We also thank I Baums for identifying the genotypes of the nursery corals All data in support of conclusions drawn in this manuscript are published and freely available for download in USGS data release at https//doiorg/105066/F7HH6H72 Any use of trade names herein was for descriptive purposes only and does not imply endorsement by the US Government
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