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Nearshore coral growth declining on the Mesoamerican Barrier Reef System.
Glob Chang Biol. 2019 11; 25(11):3932-3945.GC

Abstract

Anthropogenic global change and local stressors are impacting coral growth and survival worldwide, altering the structure and function of coral reef ecosystems. Here, we show that skeletal extension rates of nearshore colonies of two abundant and widespread Caribbean corals (Siderastrea siderea, Pseudodiploria strigosa) declined across the Belize Mesoamerican Barrier Reef System (MBRS) over the past century, while offshore coral conspecifics exhibited relatively stable extension rates over the same temporal interval. This decline has caused nearshore coral extension rates to converge with those of their historically slower growing offshore coral counterparts. For both species, individual mass coral bleaching events were correlated with low rates of skeletal extension within specific reef environments, but no single bleaching event was correlated with low skeletal extension rates across all reef environments. We postulate that the decline in skeletal extension rates for nearshore corals is driven primarily by the combined effects of long-term ocean warming and increasing exposure to higher levels of land-based anthropogenic stressors, with acute thermally induced bleaching events playing a lesser role. If these declining trends in skeletal growth of nearshore S. siderea and P. strigosa continue into the future, the structure and function of these critical nearshore MBRS coral reef systems is likely to be severely impaired.

Authors+Show Affiliations

Department of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. Biology Department, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.Department of Marine and Environmental Sciences, Marine Science Center, Northeastern University, Nahant, Massachusetts.Department of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.Department of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. Department of Marine and Environmental Sciences, Marine Science Center, Northeastern University, Nahant, Massachusetts. Scripps Institution of Oceanography, University of California San Diego, La Jolla, California.Department of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. Department of Biological Sciences, Boston University, Boston, Massachusetts.Department of Marine and Environmental Sciences, Marine Science Center, Northeastern University, Nahant, Massachusetts.Department of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. Environment, Ecology, and Energy Program, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

31456305

Citation

Baumann, Justin H., et al. "Nearshore Coral Growth Declining On the Mesoamerican Barrier Reef System." Global Change Biology, vol. 25, no. 11, 2019, pp. 3932-3945.
Baumann JH, Ries JB, Rippe JP, et al. Nearshore coral growth declining on the Mesoamerican Barrier Reef System. Glob Chang Biol. 2019;25(11):3932-3945.
Baumann, J. H., Ries, J. B., Rippe, J. P., Courtney, T. A., Aichelman, H. E., Westfield, I., & Castillo, K. D. (2019). Nearshore coral growth declining on the Mesoamerican Barrier Reef System. Global Change Biology, 25(11), 3932-3945. https://doi.org/10.1111/gcb.14784
Baumann JH, et al. Nearshore Coral Growth Declining On the Mesoamerican Barrier Reef System. Glob Chang Biol. 2019;25(11):3932-3945. PubMed PMID: 31456305.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Nearshore coral growth declining on the Mesoamerican Barrier Reef System. AU - Baumann,Justin H, AU - Ries,Justin B, AU - Rippe,John P, AU - Courtney,Travis A, AU - Aichelman,Hannah E, AU - Westfield,Isaac, AU - Castillo,Karl D, Y1 - 2019/08/27/ PY - 2019/02/01/received PY - 2019/07/23/revised PY - 2019/07/23/accepted PY - 2019/8/29/pubmed PY - 2019/11/22/medline PY - 2019/8/29/entrez KW - Pseudodiploria strigosa KW - Siderastrea siderea KW - Caribbean coral reefs KW - climate change KW - ocean warming KW - reef-building coral KW - skeletal extension SP - 3932 EP - 3945 JF - Global change biology JO - Glob Chang Biol VL - 25 IS - 11 N2 - Anthropogenic global change and local stressors are impacting coral growth and survival worldwide, altering the structure and function of coral reef ecosystems. Here, we show that skeletal extension rates of nearshore colonies of two abundant and widespread Caribbean corals (Siderastrea siderea, Pseudodiploria strigosa) declined across the Belize Mesoamerican Barrier Reef System (MBRS) over the past century, while offshore coral conspecifics exhibited relatively stable extension rates over the same temporal interval. This decline has caused nearshore coral extension rates to converge with those of their historically slower growing offshore coral counterparts. For both species, individual mass coral bleaching events were correlated with low rates of skeletal extension within specific reef environments, but no single bleaching event was correlated with low skeletal extension rates across all reef environments. We postulate that the decline in skeletal extension rates for nearshore corals is driven primarily by the combined effects of long-term ocean warming and increasing exposure to higher levels of land-based anthropogenic stressors, with acute thermally induced bleaching events playing a lesser role. If these declining trends in skeletal growth of nearshore S. siderea and P. strigosa continue into the future, the structure and function of these critical nearshore MBRS coral reef systems is likely to be severely impaired. SN - 1365-2486 UR - https://www.unboundmedicine.com/medline/citation/31456305/Nearshore_coral_growth_declining_on_the_Mesoamerican_Barrier_Reef_System_ L2 - https://doi.org/10.1111/gcb.14784 DB - PRIME DP - Unbound Medicine ER -