Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification
The existence of coral reefs is dependent on the production and maintenance of calcium carbonate (CaCO3) framework that is produced through calcification. The net production of CaCO3 will likely decline in the future, from both declining net calcification rates (decreasing calcification and increasi...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Research Online
2016
|
Subjects: | |
Online Access: | https://ro.uow.edu.au/smhpapers/3836 https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4859&context=smhpapers |
id |
ftunivwollongong:oai:ro.uow.edu.au:smhpapers-4859 |
---|---|
record_format |
openpolar |
spelling |
ftunivwollongong:oai:ro.uow.edu.au:smhpapers-4859 2023-05-15T17:51:36+02:00 Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification Shaw, Emily C Hamylton, Sarah Phinn, Stuart R 2016-01-01T08:00:00Z application/pdf https://ro.uow.edu.au/smhpapers/3836 https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4859&context=smhpapers unknown Research Online https://ro.uow.edu.au/smhpapers/3836 https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4859&context=smhpapers Faculty of Science, Medicine and Health - Papers: part A Medicine and Health Sciences Social and Behavioral Sciences article 2016 ftunivwollongong 2020-02-25T11:30:14Z The existence of coral reefs is dependent on the production and maintenance of calcium carbonate (CaCO3) framework that is produced through calcification. The net production of CaCO3 will likely decline in the future, from both declining net calcification rates (decreasing calcification and increasing dissolution) and shifts in benthic community composition from calcifying organisms to non-calcifying organisms. Here, we present a framework for hydrochemical studies that allows both declining net calcification rates and changes in benthic community composition to be incorporated into projections of coral reef CaCO3 production. The framework involves upscaling net calcification rates for each benthic community type using mapped proportional cover of the benthic communities. This upscaling process was applied to the reef flats at One Tree and Lady Elliot reefs (Great Barrier Reef) and Shiraho Reef (Okinawa), and compared to existing data. Future CaCO3 budgets were projected for Lady Elliot Reef, predicting a decline of 53 % from the present value by end-century (800 ppm CO2) without any changes to benthic community composition. A further 5.7 % decline in net CaCO3 production is expected for each 10 % decline in calcifier cover, and net dissolution is predicted by end-century if calcifier cover drops below 18 % of the present extent. These results show the combined negative effect of both declining net calcification rates and changing benthic community composition on reefs and the importance of considering both processes for determining future reef CaCO3 production. Article in Journal/Newspaper Ocean acidification University of Wollongong, Australia: Research Online Elliot ENVELOPE(166.533,166.533,-70.883,-70.883) |
institution |
Open Polar |
collection |
University of Wollongong, Australia: Research Online |
op_collection_id |
ftunivwollongong |
language |
unknown |
topic |
Medicine and Health Sciences Social and Behavioral Sciences |
spellingShingle |
Medicine and Health Sciences Social and Behavioral Sciences Shaw, Emily C Hamylton, Sarah Phinn, Stuart R Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification |
topic_facet |
Medicine and Health Sciences Social and Behavioral Sciences |
description |
The existence of coral reefs is dependent on the production and maintenance of calcium carbonate (CaCO3) framework that is produced through calcification. The net production of CaCO3 will likely decline in the future, from both declining net calcification rates (decreasing calcification and increasing dissolution) and shifts in benthic community composition from calcifying organisms to non-calcifying organisms. Here, we present a framework for hydrochemical studies that allows both declining net calcification rates and changes in benthic community composition to be incorporated into projections of coral reef CaCO3 production. The framework involves upscaling net calcification rates for each benthic community type using mapped proportional cover of the benthic communities. This upscaling process was applied to the reef flats at One Tree and Lady Elliot reefs (Great Barrier Reef) and Shiraho Reef (Okinawa), and compared to existing data. Future CaCO3 budgets were projected for Lady Elliot Reef, predicting a decline of 53 % from the present value by end-century (800 ppm CO2) without any changes to benthic community composition. A further 5.7 % decline in net CaCO3 production is expected for each 10 % decline in calcifier cover, and net dissolution is predicted by end-century if calcifier cover drops below 18 % of the present extent. These results show the combined negative effect of both declining net calcification rates and changing benthic community composition on reefs and the importance of considering both processes for determining future reef CaCO3 production. |
format |
Article in Journal/Newspaper |
author |
Shaw, Emily C Hamylton, Sarah Phinn, Stuart R |
author_facet |
Shaw, Emily C Hamylton, Sarah Phinn, Stuart R |
author_sort |
Shaw, Emily C |
title |
Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification |
title_short |
Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification |
title_full |
Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification |
title_fullStr |
Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification |
title_full_unstemmed |
Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification |
title_sort |
incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification |
publisher |
Research Online |
publishDate |
2016 |
url |
https://ro.uow.edu.au/smhpapers/3836 https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4859&context=smhpapers |
long_lat |
ENVELOPE(166.533,166.533,-70.883,-70.883) |
geographic |
Elliot |
geographic_facet |
Elliot |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Faculty of Science, Medicine and Health - Papers: part A |
op_relation |
https://ro.uow.edu.au/smhpapers/3836 https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4859&context=smhpapers |
_version_ |
1766158794070425600 |