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Blog Profile / Ocean Acidification


URL :http://oceanacidification.wordpress.com
Filed Under:Biology / Marine Biology
Posts on Regator:4686
Posts / Week:21.1
Archived Since:July 23, 2010

Blog Post Archive

Australian scientists studying the effects of ocean acidification on marine life

Chambers are being set up by Australian scientists under Antarctic sea ice to test the impact of ocean acidification on marine life. The big acrylic boxes will be fed with seawater enriched with carbon dioxide to show the disruption by acidification that this sea life should expect over the century, according to the Australian Antarctic […]

Report on the workshop?: “Future proofing New Zealand’s shellfish aquaculture: monitoring and adaptation to ocean acidification”

A 2013 workshop “Future proofing New Zealand’s shellfish aquaculture: Monitoring and adaptation to ocean acidification” brought together experts from government, the aquaculture industry and science organizations from the US and NZ to...Show More Summary

Ocean acidification – what does it mean for shellfish? (text & video)

NIWA is part of an international collaboration to understand ocean acidification and how increasing ocean acidity will affect the shellfish and aquaculture industry. The video below has been produced to highlight ocean acidification as an issue with the potential to affect the New Zealand shellfish aquaculture industry. NIWA, 17 June 2014. Text & video.Filed under: […]

Acidifying seas endanger sharks’ survival

Scientific studies show that as carbon dioxide acidifies the oceans, sharks are less able to detect prey, and their chances of survival are reduced, writes Tim Radford – with serious consequences for ocean ecology. Human emissions of carbon dioxide do more than just warm the global climate. They also acidify our seas and oceans. And […]

Ocean acidification poses a latent danger to fishing nations

A group of 30 scientists meeting in South Korea warned fishing countries, and especially those in the Caribbean, of the increasing ocean acidification. Because to the Caribbean nations fishing is an important source of income, experts recommend to take into account the results of the new international report on ocean acidification, prepared by the Secretariat […]

Que faire contre l’acidification des océans ? (text & video, in French)

Le dioxyde de carbone est présent dans l’air mais il est également “absorbé” en quantités énormes par les mers et les océans. Au contact de l’eau, ce CO2 atmosphérique se dissout et se transforme en acide carbonique. Le pH de l’eau de mer diminue, les océans alcalins s’acidifient. Visite à l’Observatoire océanologique de Villefranche-sur-Mer. Le […]

Plasticity predicts evolution in a marine alga

Under global change, populations have four possible responses: ‘migrate, acclimate, adapt or die’ (Gienapp et al. 2008 Climate change and evolution: disentangling environmental and genetic response. Mol. Ecol. 17, 167–178. (doi:10.1111/j.1365-294X.2007.03413.x)). Show More Summary

Fish unable to rapidly adapt to ocean acidification

In high-CO2 water, offspring don’t do much better than their parents. Apart from strengthening the greenhouse effect, our emissions of carbon dioxide also affect the chemistry of the oceans. When CO2 dissolves in water, it lowers the pH, which makes it more difficult for organisms to make calcium carbonate shells. Show More Summary

Great Barrier Reef: ‘a massive chemistry experiment gone wrong’

Scientists warn that pollution may be dramatically increasing the rate of ocean acidification in inshore areas, threatening coral. It has long been known that pollution is having a devastating impact on the Great Barrier Reef but now scientists are warning that it may also be dramatically increasing the rate of ocean acidification in inshore areas […]

Dissolution dominating calcification process in polar pteropods close to the point of aragonite undersaturation

Thecosome pteropods are abundant upper-ocean zooplankton that build aragonite shells. Ocean acidification results in the lowering of aragonite saturation levels in the surface layers, and several incubation studies have shown that rates of calcification in these organisms decrease as a result. Show More Summary

Les océans de plus en plus acides sous l’effet des émissions de CO2 (in French)

Les coraux en blanchissent de peur: l’acidité des océans a augmenté en moyenne de 26% au cours des 200 ans dernières années, indique un rapport publié ce mercredi. Les océans absorbent plus d’un quart des émissions de CO2 émises par les activités humaines et l’augmentation de ces rejets de dioxyde de carbone met la vie marine […]

Meeting: “Acidification and hypoxia: separate accounts or two sides to a coin?”, AAAS 2015 Annual Meeting, San Jose, CA

Sunday, 15 February 2015: 8:00 AM-9:30 AM Room 210G (San Jose Convention Center) Francis Chan, Oregon State University, Corvallis, OR Hypoxia has garnered attention with dramatic die offs and devastated fisheries. Ocean acidification has not yet caused the same headline-grabbing effects, but is often mooted as a grave threat to marine ecosystems worldwide. Chemically, […]

Meeting: “Why Is the West Coast special? Acidification, hypoxia, and oceanographic connections”, AAAS 2015 Annual Meeting, San Jose, CA

Sunday, 15 February 2015: 8:00 AM-9:30 AM Room 210G (San Jose Convention Center) Tessa Hill, University of California, Davis, CA Ocean acidification is a global phenomenon of changes in ocean chemistry associated with anthropogenic carbon dioxide emissions to the atmosphere. Show More Summary

Enormous progress in ocean acidification research: new report summarises current state of knowledge

Bremerhaven, 8 October 2014. Never before have so many scientists conducted research on what impacts the declining pH value of seawater has on animals and plants in the ocean. The experts have now compiled their results for the second report on ocean acidification of the Convention on Biological Diversity (CBD), which will be made public […]

Ocean acidification will worsen and affect marine organisms, ecosystems

NERC-funded scientists at Heriot-Watt University have led a major new international report showing unequivocally that ocean acidification will have significant consequences for marine life, and in turn human society. While the lowering pH of the ocean has been an unavoidable chemical response to rising carbon dioxide in the atmosphere, how it will affect life in […]

Ocean acidification foils chemical signals

THE CRUCIAL IMPORTANCE of chemical cues to reef resettlement was elegantly demonstrated by D. L. Dixson et al. (“Chemically mediated behavior of recruiting corals and fishes: A tipping point that may limit reef recovery,” Research Article, 22 August, p. Show More Summary

Reminder: MPhil/PhD studentship: Implications of ocean acidification on the UK’s commercial shellfish fisheries: a comparison of native and non-native species

Qualification type: PhD Location: Plymouth Funding for: UK Students, EU Students Funding amount: £13,863 stipend, per annum Hours: Full Time Closes: 3rd November 2014 Applications are invited for a three-year PhD studentship. The studentship will start in January 2015. Show More Summary

Coral reefs on the edge? Carbon chemistry on inshore reefs of the Great Barrier Reef

While increasing atmospheric carbon dioxide (CO2) concentration alters global water chemistry (Ocean Acidification; OA), the degree of changes vary on local and regional spatial scales. Inshore fringing coral reefs of the Great Barrier Reef (GBR) are subjected to a variety of local pressures, and some sites may already be marginal habitats for corals. The spatial […]

Changement climatique : l’acidification des océans s’accélère (in French)

Le rapport sur les effets de l’acidification des océans sur la biologie marine, présenté lors de la 12e réunion de la CDB en Corée, alerte sur la perte de biodiversité et ses impacts socio-économiques. “De façon quasiment inévitable, d’ici 50 à 100 ans, les émissions de dioxyde de carbone vont encore augmenter l’acidité des océans […]

Ocean acidification causes US$1trn of damage a year – study

Some 400 million people depend on threatened coral reefs for their livelihoods, British scientists warn at UN meeting. As well as warming the atmosphere, carbon dioxide emissions from power stations and cars dissolve in the ocean, making it more acidic. While it is driven by the same human activities as climate change, ocean acidification tends […]

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