Blog Profile / Ocean Acidification

Filed Under:Biology / Marine Biology
Posts on Regator:5314
Posts / Week:19.5
Archived Since:July 23, 2010

Blog Post Archive

Self-regulating coral protect themselves against ocean acidification

A new study carried out by researchers from The University of Western Australia and the University of Queensland has found that the Porites cylindrica variety of coral have an in-built mechanism that protects them in environments where there is a high fluctuation in ocean pH. The researchers discovered that Porites cylindrica in the Heron Island […]

pH homeostasis during coral calcification in a free ocean CO2 enrichment (FOCE) experiment, Heron Island reef flat, Great Barrier Reef

Geochemical analyses (?11B and Sr/Ca) are reported for the coral Porites cylindrica grown within a free ocean carbon enrichment (FOCE) experiment, conducted on the Heron Island reef flat (Great Barrier Reef) for a 6-mo period from June to early December 2010. The FOCE experiment was designed to simulate the effects of CO2-driven acidification predicted to […]

Climatological variations of total alkalinity and total inorganic carbon in the Mediterranean Sea surface waters

A compilation of several cruises data from 1998 to 2013 was used to derive polynomial fits that estimate total alkalinity (AT) and total inorganic carbon (CT) from measurements of salinity and temperature in the Mediterranean Sea surface waters. The optimal equations were chosen based on the 10-fold cross validation results and revealed that a second […]

Tokelau keen to monitor ocean acidification

The conference on Ocean Acidification (OA), currently taking place in Auckland, is very relevant to the small atoll nation Tokelau. Indeed the country is keen to become one of the pilot monitoring sites for the effects of ocean acidification. This is because the coral rims the three atolls are composed of, the lagoons they encircle, […]

Océans et climat : un duo inséparable (in French)

Les océans sont menacés par le dérèglement climatique à plus d’un titre : réchauffement, acidification, montée des eaux… De grands dangers pèsent sur les espèces marines, mais aussi sur les services que rendent les océans à l’humanité. Le 26 août 2015, la nasaa annoncé qu’une montée des océans d’au moins un mètre due au réchauffement […]

Results of the 2015 “Our Ocean” Conference: preventing and monitoring ocean acidification

The United States announced that it is working to create a new and innovative public-private partnership involving several foundations that would provide resources to enhance the ability of African coastal States to monitor and better understand ocean acidification in the Indian Ocean. The United States intends to contribute resources to support the training of African […]

U. S. State Department fact sheet: Updates on commitments made at “Our Ocean” 2014

The inaugural Our Ocean conference in June 2014 generated ground-breaking commitments among international partners to promote sustainable fisheries, reduce marine pollution, and stem ocean acidification. The following are pledges made at the first conference and updates on progress made since then, as Our Ocean 2015 commences in Valparaiso, Chile. Show More Summary

NOAA awards more than $1.3 million to predict coastal acidification impacts to commercial species and vulnerable habitats

NOAA has awarded more than $1.3 million to three universities for research on how economically and ecologically important marine species and coastal habitats are affected by ocean acidification. The research that comes from these awards will tell scientists how the chemistry of the coastal ocean is changing, where these changes will be most acute, and […]

Marine animal behaviour in a high CO2 ocean

Recently, the effects of ocean acidification (OA) on marine animal behaviour have garnered considerable attention, as they can impact biological interactions and, in turn, ecosystem structure and functioning. We reviewed current published...Show More Summary

Effects of ocean acidification on marine dissolved organic matter are not detectable over the succession of phytoplankton blooms

Marine dissolved organic matter (DOM) is one of the largest active organic carbon reservoirs on Earth, and changes in its pool size or composition could have a major impact on the global carbon cycle. Ocean acidification is a potential driver for these changes because it influences marine primary production and heterotrophic respiration. We simulated ocean […]

Tolerance to elevated temperature and ocean acidification of the larvae of the solitary corals Fungia fungites (Linnaues, 1758) and Lithophyllon repanda (Dana, 1846)

Increase in atmospheric CO2 is the main driver of global climate change and is projected to elevate sea surface temperature by at least 2°C and to decrease oceanic pH by 0.3 to 0.4 units by the end of the century. These factors seriously threaten coral reef ecosystems worldwide. In Okinawa, solitary corals are an important […]

A novel marine mesocosm facility to study global warming, water quality, and ocean acidification

We describe a completely randomizable flow-through outdoor mesocosm for climate change and ecotoxicology studies that was built with inexpensive materials. The 16 raceway tanks allow up to 6× water renewal per hour, avoiding changes in natural abiotic seawater conditions. We use an open-source hardware board (Arduino) that was adapted to control heaters and an innovative […]

Presence of competitors influences photosynthesis, but not growth, of the hard coral Porites cylindrica at elevated seawater CO2

Changes in environmental conditions, such as those caused by elevated carbon dioxide (CO2), potentially alter the outcome of competitive interactions between species. This study aimed to understand how elevated CO2 could influence competitive...Show More Summary

Interactive effects of seawater acidification and elevated temperature on biomineralization and amino acid metabolism in the mussel Mytilus edulis

Seawater acidification and warming resulting from anthropogenic production of carbon dioxide are increasing threats to marine ecosystems. Previous studies have documented the effects of either seawater acidification or warming on marine calcifiers; however, the combined effects of these stressors are poorly understood. Show More Summary

Near-future ocean acidification impacts maintenance costs in sea-urchin larvae: Identification of stress factors and tipping points using a DEB modelling approach

Ocean acidification (OA) affects the life-history traits of marine invertebrates. To understand the effects of OA on the life cycle, and to assess its ecological consequences, it is essential to look at bioenergetics. Dynamic Energy Budget (DEB) models are particularly useful to quantitatively assess the effects of (multiple) stressors on all life-history traits in an […]

Research network on ocean acidification on its final stretch – BIOACID scientists team up for an integrated risk assessment

05 October 2015/Kiel. An in-depth assessment of possible impacts of ocean acidification on the environment, society and economy and the development of management options for decision makers are the primary goals of the German research network BIOACID (Biological Impacts of Ocean Acidification), now entering its final funding period. Show More Summary

Ocean acidification tackled at the “Our Ocean” Conference, Chile, 5-6 October 2015

On October 5 and 6, 2015, Chile will host the second “Our Ocean” conference (Our Ocean/Nuestro Oceáno – Chile 2015) at the Sheraton Miramar Hotel in the Region of Valparaiso. More than 400 leaders from government, academia, and civil society who are committed to protecting the ocean will participate, including Secretary of State of the […]

Comparison of the effects of thermal stress and CO2-driven acidified seawater on fertilization in coral Acropora digitifera

Global warming (GW) and ocean acidification (OA) have been recognized as severe threats for reef-building corals that support coral reef ecosystems, but these effects on the early life history stage of corals are relatively unknown compared with the effects on calcification of adult corals. In this study, we evaluated the effects of thermal stress and […]

Impact of CO2 leakage from sub-seabed carbon dioxide capture and storage (CCS) reservoirs on benthic virus–prokaryote interactions and functions

Atmospheric CO2 emissions are a global concern due to their predicted impact on biodiversity, ecosystems functioning, and human life. Among the proposed mitigation strategies, CO2 capture and storage, primarily the injection of CO2 into marine deep geological formations has been suggested as a technically practical option for reducing emissions. Show More Summary

The metabolic response of marine copepods to environmental warming and ocean acidification in the absence of food

Marine copepods are central to the productivity and biogeochemistry of marine ecosystems. Nevertheless, the direct and indirect effects of climate change on their metabolic functioning remain poorly understood. Here, we use metabolomics,...Show More Summary

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