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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 […]

Video: Oceana in Belize Exposes Belizean First Family to Belizean World Heritage Sites

Belize's Prime Minister Dean Barrow's wife and daughter visit the Great Blue Hole. (Photo Oceana / Alex Ellis) The Great Blue Hole, a Belizean National Monument and World Heritage Site, is one of the most gorgeous marine settings in the world. Show More Summary

Photos: Celebrate World Sight Day with a Look at Ocean Animals’ Unique Vision

A common octopus (Octopus vulgaris). Octopuses have excellent vision. (Photo: Oceana / Carlos Minguell) On October 9, Oceana and our friends at TOMS are celebrating World Sight Day, a time to raise awareness on blindness and vision impairment around the world. Show More Summary

Ocean Roundup: Seaweed Transporting Disease to Sea Otters, Lego to Break Ties with Shell, and More

Seaweed particles are helping spread disease among sea otters. (Photo: Vicki & Chuck Rogers / Flickr Creative Commons) - Scientists have recently discovered that some mangroves are offering coral reef shelter and protection from climate change. Show More Summary

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 […]

Global economy to lose billions without action to stop ocean acidification, UN report warns

8 October 2014 – The global economy could be losing as much as $1 trillion annually by the end of the century if countries do not take urgent steps to stop ocean acidification, says a United Nations report launched today in Pyeongchang, Republic of Korea (ROK). This figure reflects the economic loss for industries linked […]

Three Bigelow scientists in ocean acidification research effort in Gran Canaria

Three scientists from Bigelow Laboratory for Ocean Sciences are in Gran Canaria, the second most populated island of the Canary Islands, for a rerun of an experiment that was thwarted by a severe storm there earlier this year. Senior Research Scientist Steve Archer, post doc Kerstin Suffrian and research techician Kevin Posman, will spend the […]

Inaugural issue of the e-newsletter of the Global Ocean Acidification Observing Network (GOA-ON)

This e-newsletter is an effort by the GOA-ON Executive Council to keep the community engaged and informed about all the various related activities that are happening around the world. Authors intend to produce it quarterly. If you have any upcoming activities or any comments or suggestions of items that you would like to see in […]

Acid damage to coral reefs could cost $1 trillion

Ocean acidification is set to cost us $1 trillion by 2100 as it eats away at our tropical coral reefs. That’s the warning from a report released today by the United Nations Convention on Biological Diversity, which assesses the economic impacts the problem could have. The ocean’s pH is now 8.0, down from 8.1 in […]

Video: Oceana Supporter Maya Gabeira Determined To Keep Surfing after Near-Fatal Accident

Maya Gabeira pictured during her Oceana PSA. (Photo: Oceana / Brian Bielmann Photography) It was a year ago this month when champion big-wave surfer Maya Gabeira set out to ride the biggest wave ever ridden by a woman off Nazaré, Portugal. Show More Summary

10-6-14 Humpback In the Fog and Dall's in the Sunshine

Monday, October the dock as the fog was clearing...on Maya's Westside Charters we head toward a humpback whale......back into the's quite a sight to see an animal this size rising out of the fog......I reduced theShow More Summary

Oceana Takes Action to Reduce Wasted Catch in East Coast Gillnet Fisheries

An illegal Moroccan drift gillnet boat hauls in a sea turtle. (Photo: Oceana / Jesus Renedo) Last month, Oceana submitted a proposal aimed at reducing the amount of wasted catch in New England and Mid-Atlantic gillnet fisheries, which throw away 16 percent of their total catch every year. Show More Summary

Ocean Roundup: Orcas Can Shift Vocal Sounds around Dolphins, Larval Fish Found to Make Noise, and More

Orcas were found to engage in cross-species vocal learning. (Photo: Courtesy of Dr. Brandon Southall, NMFS/OPR / Flickr Creative Commons) - Humans, cetaceans, and some birds are some of the only species known to practice vocal learning—communicating with sounds that aren’t just innate. Show More Summary

Impact of elevated CO2 concentrations on the growth and ultrastructure of non-calcifying marine diatom (Chaetoceros gracilis F.Schütt)

The impacts of different CO2 concentrations on the growth, physiology and ultrastructure of noncalcifying microalga Chaetoceros gracilis F.Schütt (Diatom) were studied. We incubated Ch. gracilis under different CO2 concentrations, preindustrial...Show More Summary

L’acidification des océans aura d’importantes conséquences pour la biodiversité (in French)

Le fait est encore relativement méconnu du grand public : le changement climatique n’est pas la seule conséquence des émissions humaines de dioxyde de carbone (CO2). Celles-ci sont aussi responsables de l’acidification des océans, phénomène qui aura des conséquences importantes sur la biodiversité marine d’ici à la fin du siècle. Show More Summary

Scientists sound alarm over ocean acidification

Ocean acidification has risen by a quarter since pre-industrial times as a result of rising carbon emissions, casting a shadow over the seas as a future source of food, scientists warned on Wednesday. In the past two centuries, the sea’s acidity level has risen 26 percent, mirroring the proportion of carbon dioxide it absorbs from […]

Could the acid–base status of Antarctic sea urchins indicate a better-than-expected resilience to near-future ocean acidification?

Increasing atmospheric carbon dioxide concentration alters the chemistry of the oceans towards more acidic conditions. Polar oceans are particularly affected due to their low temperature, low carbonate content and mixing patterns, for instance upwellings. Show More Summary

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