期刊
MARINE POLLUTION BULLETIN
卷 119, 期 2, 页码 106-119出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2017.03.066
关键词
Acropora rands; Coral health; Environmental drivers; Water quality; Inshore reefs; Great Barrier Reef
资金
- Australian Institute of Marine Science
- Australian Government's National Environmental Research Program - Tropical Ecosystems Hub
- PADI Grant Foundation
- ARC Centre of Excellence for Coral Reef Studies [CEO561435, CE140100020]
This study explores how plasticity in biochemical attributes, used as indicators of health and condition, enables the coral Acropora tenuis to respond to differing water quality regimes in inshore regions of the Great Barrier Reef. Health attributes were monitored along a strong and weak water quality gradient, each with three reefs at increasing distances from a major river source. Attributes differed significantly only along the strong gradient; corals grew fastest, had the least dense skeletons, highest symbiont densities and highest lipid concentrations closest to the river mouth, where water quality was poorest. High nutrient and particulate loads were only detrimental to skeletal density, which decreased as linear extension increased, highlighting a trade-off. Our study underscores the importance of assessing multiple health attributes in coral reef monitoring. For example, autotrophic indices are poor indicators of coral health and condition, but improve when combined with attributes like lipid content and biomass.
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