title: Water contamination reduces the tolerance of coral larvae to thermal stress.
abstract: Coral reefs are highly susceptible to climate change, with elevated sea surface temperatures (SST) posing one of the main threats to coral survival. Successful recruitment of new colonies is important for the recovery of degraded reefs following mortality events. Coral larvae require relatively uncontaminated substratum on which to metamorphose into sessile polyps, and the increasing pollution of coastal waters therefore constitutes an additional threat to reef resilience. Here we develop and analyse a model of larval metamorphosis success for two common coral species to quantify the interactive effects of water pollution (copper contamination) and SST. We identify thresholds of temperature and pollution that prevent larval metamorphosis, and evaluate synergistic interactions between these stressors. Our analyses show that halving the concentration of Cu can protect corals from the negative effects of a 2-3°C increase in SST. These results demonstrate that effective mitigation of local impacts can reduce negative effects of global stressors.
authors: Australian Institute of Marine Science, Townsville, Queensland, Australia. a.negri@aims.gov.au
authors: Andrew P
authors: AP
authors: Negri
authors: Mia O
authors: MO
authors: Hoogenboom
references: Aquat Toxicol. 2009 Jul 26;93(4):188-95
references: 19501419
references: Science. 2007 Dec 14;318(5857):1737-42
references: 18079392
references: Pharmacol Rev. 1989 Jun;41(2):93-141
references: 2692037
references: Antimicrob Agents Chemother. 1993 Mar;37(3):523-31
references: 8460921
references: J Environ Manage. 2009 Feb;90 Suppl 1:S31-40
references: 18951697
references: Aquat Toxicol. 2010 Apr 15;97(2):125-33
references: 20089320
references: Mar Pollut Bull. 2005;51(1-4):370-83
references: 15757736
references: Mar Pollut Bull. 2007 Jul;54(7):905-11
references: 17467745
references: J Water Pollut Control Fed. 1975 Feb;47(2):267-80
references: 1094136
references: Mar Pollut Bull. 2009 May;58(5):745-51
references: 19230930
references: Science. 2003 Aug 15;301(5635):955-8
references: 12920296
references: Mar Pollut Bull. 2005 Feb;50(2):125-46
references: 15737355
references: Environ Toxicol Chem. 2004 Apr;23(4):1074-9
references: 15095907
references: J Pharmacol Exp Ther. 2006 Oct;319(1):1-7
references: 16670349
references: Mar Pollut Bull. 2002 Feb;44(2):111-7
references: 11981977
references: Ecology. 2010 Dec;91(12):3572-83
references: 21302829
references: Mar Environ Res. 2001 Feb;51(1):17-27
references: 11125701
references: Free Radic Biol Med. 1995 Feb;18(2):321-36
references: 7744317
references: Science. 2003 Aug 15;301(5635):929-33
references: 12920289
references: Mol Ecol. 2009 Dec;18(24):5101-14
references: 19900172
references: Ecol Lett. 2006 Apr;9(4):390-8
references: 16623724