Ocean Acidification

World leading Australian marine scientists feature in new online education resources

Ocean Ark Alliance — Tue, 21 Jun 2011 02:26:38 +0000

What is ocean acidification? What causes ocean acidification? How does ocean acidification impact on coral reefs? Are today’s conditions very different from the past? Can we predict how ocean acidification will impact on coral reefs in the future?

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World leading Australian marine scientists Professor Ove Hoegh-Guldberg and Professor Peter Harrison answer these and many other questions about corals reefs in two new series of educational video presentations both hosted by Dr 'Kiki' Sanford. Created in collaboration with Education Services Australia, The Learning Federation, Specialty Studios and Plankton Productions, a total of nine insightful video modules with support materials aligned with curriculum standards for education in science are now available.

Projected acidification and warming threaten key ocean species

Ocean Ark Alliance — Mon, 04 Apr 2011 07:12:02 +0000

Marine abalone and sea urchins will not develop skeletons if the ocean continues to warm and acidify as predicted, according to current research lead by the University of Sydney’s Schools of Medical Sciences and Biological Sciences, at environmentally significant Little Bay, near Sydney. When exposed to the increased acidity and temperature levels projected 100 years from now they produced deformed specimens, without shells or spines. This means key sources of protein will be lost due to future changes in our oceans. "We wondered about the impact of climate change on shelled marine animals since ocean acidification reduces the amount of carbonate ions, which they need to make their calcium carbonate skeletons," says Professor Maria Byrne, from University of Sydney’s Schools of Biological Science and Medical Sciences. Lead author Prof. Byrne and her team investigate how the simultaneous increase in acidity and temperature affect development from fertilised egg to juvenile stages of sea urchins and abalone, a first for any study.

David Attenborough covers reef threat

Ocean Ark Alliance — Mon, 06 Sep 2010 08:32:58 +0000

“The ocean is … a chemical reactor. CO₂ goes into the ocean. It is fixed by plants or deposited as calcium carbonate, and through the very large scale circulations of water around the planet it is essentially processing the atmosphere and keeping the planet habitable.” Professor Ove Hoegh-Guldberg, Global Change Institute Director, University of Queensland, from the David Attenborough documentary “Death of the Oceans”. A world-leading experiment on Heron Island, done in collaboration between labs at UQ, Stanford University and the Monterey Bay Aquarium Research Institute, will chemically alter the carbon dioxide absorbed in the ocean water directly on a living intact coral reef. This experiment aims to simulate insitu reactions to the amounts of CO₂ likely to be present over the next few decades. So ground breaking is this current research that it caught the eye of Sir David Attenborough when producing his latest documentary, Death of the Oceans.

Australian PM given wake-up: book explains Ocean Acidification threat

Ocean Ark Alliance — Tue, 27 Jul 2010 09:20:09 +0000

Uni of Queensland Vice-Chancellor Paul Greenfield hands PM Julia Gillard a wake-up call: her fresh-off-the-press copy of Coral Reefs and Climate Change. This new book, as explained on their press release demystifies the science surrounding coral reefs and climate change…aimed at anyone wishing to explore the natural wonder and beauty of coral reefs. Gillard was at Brisbane's Customs House on July 23 to deliver her stance on climate change, a speech infamous for its vocal demonstrators and the security-tackled environmental activist, Bradley Smith. As we wade into the depths of the election campaign the current Labor Government has offered us very little in decisive leadership on the environmental front. Its two major contributions, the Citizen’s Assembly - delivered at this very appearance - and the so-called ''cash for clunkers'' proposal (which will divert funds from the current solar energy program) together side-line and trivialise assertive action.

ABC TV Catalyst: “Southern Ocean Sentinel”

Ocean Ark Alliance — Thu, 29 Apr 2010 05:40:37 +0000

Tiny plankton and massive currents hold clues to how rapidly the Southern Ocean is changing. Australia's ABC TV runs an 8 min story on the Catalyst program. Presenter / Reporter Mark Horstman follows up on new research in the Southern Ocean near Antarctica.

Dr Veron’s presentation to Royal Society, London

Ocean Ark Alliance — Mon, 06 Jul 2009 02:53:37 +0000

Introduced by Sir David Attenborough this keynote presentation addressing a workshop of 35 leading marine and climate change scientists hosted by Zoological Society of London and the Royal Society in London, presents the effects that climate change is having on coral reefs. Dr. J.E.N 'Charlie' Veron, the former Chief Scientist of the Australian Institute of Marine Science, is widely regarded as the world’s leading authority on coral reef ecosystems.

European Project on Ocean Acidification given 4 year green light

Ocean Ark Alliance — Thu, 19 Jun 2008 09:17:18 +0000

The overall goal of the EPOCA consortium is to advance understanding of the biological, ecological, biogeochemical, and societal implications of ocean acidification. It brings together more than 100 researchers from 29 institutes and 10 European countries (Belgium, France, Germany, Iceland, Italy, The Netherlands, Norway, Sweden, Switzerland, United Kingdom).

ABC TV Catalyst: “Ocean Acidification – The BIG global warming story”

Ocean Ark Alliance — Thu, 13 Sep 2007 01:57:22 +0000

What's happening below the surface of the ocean? Australia's ABC TV runs a 9 & 1/2 min story on the Catalyst program. Presenter / Reporter Dr. Graham Phillips meets scientists who, for the first time, have found evidence that acidification is affecting marine organisms.

Changing Ocean Chemistry Dissolves Corals

Ocean Ark Alliance — Wed, 05 Jul 2006 13:25:57 +0000

News that increasing carbon dioxide pollution reduces the ability of coral reefs to grow reached notoriety with this landmark report. It is a result of a workshop in St. Petersburg, Florida involving peak research bodies NSF, NOAA and USGS. Lead by Dr Joan Kleypas, a scientist at the National Center for Atmospheric Research, they outlined the sensitivity of ocean chemistry and the implications of Ocean Acidification. What conclusion did their landmark work – Impacts of Ocean Acidification on Coral Reefs and Other Marine Calcifiers - reach? We need to know more, a lot more.