Journal
MARINE POLLUTION BULLETIN
Volume 114, Issue 1, Pages 505-514Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.10.011
Keywords
Coal; Coral reproduction; Fertilisation; Settlement; Suspended particles; Marine contamination; Great Barrier Reef
Funding
- James Cook University
- Australian Institute of Marine Science (AIMS)
- Ecological Society of Australia
- AIMS@JCU
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Successful reproduction and larval dispersal are important for the persistence of marine invertebrate populations, and these early life history processes can be sensitive to marine pollution. Coal is emerging as a contaminant of interest due to the proximity of ports and shipping lanes to coral reefs. To assess the potential hazard of this contaminant, gametes, newly developed embryos, larvae and juveniles of the coral Acropora tenuis were exposed to a range of coal leachate, suspended coal, and coal smothering treatments. Fertilisation was the most sensitive reproductive process tested. Embryo survivorship decreased with increasing suspended coal concentrations and exposure duration, effects on larval settlement varied between treatments, while effects on juvenile survivorship were minimal. Leachate exposures had negligible effects on fertilisation and larval settlement. These results indicate that coral recruitment could be affected by spills that produce plumes of suspended coal particles which interact with gametes and embryos soon after spawning. (C) 2016 The Authors. Published by Elsevier Ltd.
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