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Viewpoints in bioerosion research—are we really disagreeing? A reply to the comment by Silbiger and DeCarlo (2017)

A recent literature review by Schönberg et al. (2017) on bioerosion under ocean acidification and global change led to a detailed comment by Silbiger and DeCarlo (2017). We use the opportunity to reply to this comment, to correct misinterpreted data and to further stimulate the discussion in bioerosion science. We still believe that our paper […]

The evolution of phenotypic plasticity under global change

Marine ecosystems are currently in a state of flux, with ocean warming and acidification occurring at unprecedented rates. Phenotypic plasticity underpins acclimatory responses by shifting the mean phenotype in a population, which may buffer the negative effects of global change. Show More Summary

Transcriptomic resilience of the Montipora digitata holobiont to low pH

Ocean acidification is considered as one of the major threats for coral reefs at a global scale. Marine calcifying organisms, including stony corals, are expected to be the most affected by the predicted decrease of the surface water pH at the end of the century. The severity of the impacts on coral reefs remains as […]

Temporal changes in seawater carbonate chemistry and carbon export from a Southern California estuary

Estuaries are important subcomponents of the coastal ocean, but knowledge about the temporal and spatial variability of their carbonate chemistry, as well as their contribution to coastal and global carbon fluxes, are limited. In the...Show More Summary

Reduced spore germination explains sensitivity of reef-building algae to climate change stressors

Reduced seawater pH and changes in carbonate chemistry associated with ocean acidification (OA) decrease the recruitment of crustose coralline algae (CCAcf.), an important coral-reef builder. However, it is unclear whether the observed decline in recruitment is driven by impairment of spore germination, or post-settlement processes (e.g. Show More Summary

Hope for coral facing ocean acidification

New research suggests corals can adapt their metabolism to increases in ocean acidity.   Coral may be able to acclimatise and thrive despite increasingly acidic oceans, according to new collaborative research that suggests some hope for reefs. Scientists from the University of Western Australia and the Hawai’i Institute of Marine Biology examined coral from Hawai’i’s […]

Climate change projections for the surface ocean around New Zealand

The future status of the surface ocean around New Zealand was projected using two Earth System Models and four emission scenarios. By 2100 mean changes are largest under Representative Concentration Pathway 8.5 (RCP8.5), with a +2.5°C...Show More Summary

Ocean acidification poses looming threat to corals

Precise measurement of boron isotopes in skeleton reveals impact Researchers at the University of Tokyo and their collaborators have revealed that boron isotope ratios in skeletons of long-lived reef-building corals, called Porites, in the western North Pacific Ocean are experiencing a rapid decrease in recent years. Show More Summary

BIOACID Science Portrait: Felix Ekardt (video, in German; English subtitles)

The jurist, philosopher and sociologist Prof. Felix Ekardt is founder and director of the Research Unit Sustainability and Climate Policy and external professor for public law and legal philosophy at Rostock University. As part of BIOACID,...Show More Summary

Sauer ist gar nicht lustig (in German)

Mit ihren CO2-Emissionen veranstaltet die moderne Zivilisation auch ein gigantisches Chemie-Experiment in den Weltmeeren. Langsam wird klar, was dabei herauskommt. Es ist gruselig. Zehn Jahre ist es her, dass die Whiskey Creek Shellfish Hatchery ein ernstes Problem bekam. Show More Summary

Ocean Acidification News Stream among “top 50 oceanic blogs”

The Ocean Acidification News Stream has been ranked #6 on the “Top 50 Oceanic Blogs” on the web! The ranking is put together by Feedspot. We take this opportunity to thank all our followers! More information.    Filed under: Web sites and blogs

Digital technologies as support for learning about the marine environment: steps toward ocean literacy

Over the last century the ocean has been negatively impacted by human activities. In order to continue benefitting from marine services and goods, and the qualities afforded to human life through the ocean, citizens need to be informed about their relationship to the ocean and their own impact on it, that is they need to […]

Ocean acidification increases the toxic effects of TiO2 nanoparticles on the marine microalga Chlorella vulgaris

Highlights Ocean acidification enhanced growth inhibition of algal cells caused by TiO2 NPs. Ocean acidification increased oxidative damage of TiO2 NPs on Chlorella vulgaris. Elevated internalization of NPs contributed to enhanced toxicity of TiO2 NPs. Show More Summary

Calcification in Caribbean reef-building corals at high pCO2 levels in a recirculating ocean acidification exposure system

Highlights A recirculating OA system can be utilized as long as off-gassing measures are taken. Aeration, water retention and algal scrubbing are effecting off-gassing measures. Elevated pCO2 did not affect coral calcification rate or tissue growth. Show More Summary

Carbon dioxide, climate change, and ocean acidification

Chapter 13: Carbon dioxide, Climate Change, and Ocean Acidification A natural blanket of greenhouse gases surrounds the Earth and has made it far more livable than it would be otherwise. The average surface temperature of the planet is a reasonably comforable 60° F rather than the 0° F it would be without our unique atmosphere. […]

Biological responses of the marine diatom Chaetoceros socialis to changing environmental conditions: a laboratory experiment

Diatoms constitute a major group of phytoplankton, accounting for ~20% of the world’s primary production. It has been shown that iron (Fe) can be the limiting factor for phytoplankton growth, in particular, in the HNLC (High Nutrient Low Chlorophyll) regions. Iron plays thus an essential role in governing the marine primary productivity and the efficiency […]

The oceans and our climate

Key messages The oceans are a major influence on global and Australian climate. The oceans currently store over 93% of increased heat accumulating in the Earth’s climate system. Warming oceans and loss of mass from glaciers and ice sheets are causing sea level to rise. Ocean acidification is an inevitable consequence of rising atmospheric carbon […]

Auckland Region climate change projections and impacts

Auckland Council and Council Controlled Organisations commissioned NIWA to analyse projected climate changes for the Auckland region and potential impacts of climate change on some of Auckland’s environments and sectors. This reportShow More Summary

Ocean changes to come

Key messages Oceans are key to the climate system’s carbon, heat and freshwater cycles. Oceans are changing, and further physical, chemical and biological changes are projected for Australian waters this century. Ocean warming, acidification,...Show More Summary

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