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New peer-reviewed papers

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Jul 22, 2014 5:37 AM
Lecture: Sensitivity of coral trout (Plectropomus) to increasing temperature, ocean acidification and habitat degradation
Presented by: Prof Morgan Pratchett, ARC CoE Coral Reef Studies, Townsville When: Thursday, 24th of July 2014; 12:00 to 13:00 hrs Where: Building 19 (Kevin Stark Research Building), Room #106 (upstairs), JCU, Townsville. Video-linked to the University of Queensland (GCI Boardroom, Level 7, Gehrmann Building 60. Abstract: Research into environmental sensitivities of coral reef fishes […]

Jul 22, 2014 4:05 AM
Processes determining the marine alkalinity and carbonate saturation distributions
We introduce a composite tracer, Alk*, that has a global distribution primarily determined by CaCO3 precipitation and dissolution. Alk* also highlights riverine alkalinity plumes that are due to dissolved calcium carbonate from land. We estimate the Arctic receives approximately twice the riverine alkalinity per unit area as the Atlantic, and 8 times that of the […]

Jul 21, 2014 4:50 AM
Coping with climate change? Copepods experience drastic variations in their physicochemical environment on a diurnal basis
Migratory zooplankton, such as copepods experience widely varying conditions in their physicochemical environment on a diurnal basis. The amplitude of the fluctuations may affect the copepods’ ability to respond to climate change. The environment in coastal areas is naturally fluctuating and the effects of ocean acidification are difficult to predict. Negative effects on copepods may […]

Jul 21, 2014 4:11 AM
Effects of different salinities and pH on the growth and proximate composition of Nannochloropsis sp. and Tetraselmis sp. isolated from South China Sea cultured under control and natural condition
Nannochloropsis sp. and Tetraselmis sp. are widely used in aquaculture as a source of protein, lipid and carbohydrate. The growth and proximate composition of microalgae could be affected by different culture conditions especially salinity, temperature and light. Thus, this study was aimed to compare the growth and proximate composition of Nannochloropsis sp. and Tetraselmis sp. […]

Jul 20, 2014 4:00 AM
Laboratory experiment investigating the impact of ocean acidification on calcareous organisms
The increase in ocean acidity since preindustrial times may have deleterious consequences for marine organisms, particularly those with calcareous structures. We present a laboratory experiment to investigate this impact with general, introductory, environmental, and nonmajors chemistry students. For simplicity and homogeneity, calcite was substituted for calcareous organisms and placed in buffer solutions of variable acidity. […]

Jul 19, 2014 5:00 AM
Ocean acidification increases copper toxicity to the early life-history stages of the polychaete Arenicola marina in artificial seawater
The speciation and therefore bioavailability of the common pollutant copper is predicted to increase within the pH range anticipated under near-future ocean acidification (OA), hence the potential exists for copper toxicity to marine organisms to also increase. We investigated the impact of OA (seawater pH values of 7.77 (pCO2 1400 µatm) and 7.47 (pCO2 3000 […]

Jul 19, 2014 4:00 AM
NOAA grant opportunity: OA in the context of eutrophication, hypoxia and other stresses in coastal environments
The NOAA Ocean Acidification Program and the NOAA National Centers for Coastal Ocean Science have announced a new availability for grant funds for the fiscal year 2015. The funding opportunity, titled “Regional Ecosystem Prediction Program; Center for Sponsored Coastal Ocean Research, Multiple effects of ocean acidification and nutrient loading to coastal marine ecosystems” addresses state, city, township […]

Jul 18, 2014 3:32 AM
Millennial-scale ocean acidification and late Quaternary decline of cryptic bacterial crusts in tropical reefs
Ocean acidification by atmospheric carbon dioxide has increased almost continuously since the last glacial maximum (LGM), 21 000 years ago. It is expected to impair tropical reef development, but effects on reefs at the present day and in the recent past have proved difficult to evaluate. We present evidence that acidification has already significantly reduced […]

Jul 17, 2014 8:59 AM
Acclimation potential to a future ocean acidification scenario in the key copepod species Calanus finmarchicus
Ocean acidification, as a result of the increased concentration of carbon dioxide in the ocean, poses a threat towards marine ecosystems through lowered pH and altered seawater chemistry. The marine copepod Calanus finmarchicus is an ecologically and socioeconomically important species. In this study C. finmarchicus collected in Trondheimsfjorden was exposed to a CO2 concentration relevant […]

Jul 17, 2014 8:44 AM
Interaction effects of ocean acidification and warming on the marine copepod Calanus finmarchicus
Ocean acidification and concurring warming of the oceans poses an ongoing threat to marine organisms, but little is known about their combined effects. The boreal calanoid copepod Calanus finmarchicus is a key stone species in North Atlantic Ocean and adverse effects of concurring OA and warming could have major impacts for ecosystem structure and function. […]