Ocean Acidification BY: CRAIG WELCH, The Seattle Times
A remote Indonesian village highlights the threats facing millions of people who depend on marine creatures susceptible to souring seas and ocean warming.
Arctic Monitoring and Assessment Programme
The report by the Arctic Monitoring and Assessment Program on Arctic Ocean Acidification was recently released and identifies the risks to Arctic ecosystems, including indigenous tribes and Arctic residents.
BY: MICK DEVIN, special editorial to Bangor Daily News
An environmental crisis is looming on the marine horizon. Ocean acidification threatens Maine’s inshore fisheries, growing aquaculture industry and the jobs that rely on them.
The culprit in this story is carbon dioxide. It’s changing the chemistry of the ocean and endangering shellfish like lobster, oysters, clams and sea urchins.
BY: LARRY PYNN, Vancouver Sun
Ocean acidification due to excessive release of carbon dioxide into the atmosphere is threatening to produce large-scale changes to the marine ecosystem affecting all levels of the food chain, a University of B.C. marine biologist warned Friday.
Chris Harley, associate professor in the department of zoology, warned that ocean acidification also carries serious financial implications by making it more difficult for species such as oysters, clams, and sea urchins to build shells and skeletons from calcium carbonate. Acidic water is expected to result in thinner, slower-growing shells, and reduced abundance. Larvae can be especially vulnerable to acidity.
Ocean acidfication, the lesser-know twin of climate change, thereates to scramble marin life on a scale almost too big to fathom BY: CRAIG WELCH, The Seattle Times
NORMANBY ISLAND, Papua New Guinea — Katharina Fabricius plunged from a dive boat into the Pacific Ocean of tomorrow.
She kicked through blue water until she spotted a ceramic tile attached to the bottom of a reef.
A year earlier, the ecologist from the Australian Institute of Marine Science had placed this small square near a fissure in the sea floor where gas bubbles up from the earth. She hoped the next generation of baby corals would settle on it and take root.
Fabricius yanked a knife from her ankle holster, unscrewed the plate and pulled it close. Even underwater the problem was clear. Tiles from healthy reefs nearby were covered with budding coral colonies in starbursts of red, yellow, pink and blue. This plate was coated with a filthy film of algae and fringed with hairy sprigs of seaweed.
Instead of a brilliant new coral reef, what sprouted here resembled a slimy lake bottom.
Isolating the cause was easy. Only one thing separated this spot from the lush tropical reefs a few hundred yards away.
California and Oregon are joining forces to help address ocean acidification and hypoxia, a West Coast-wide thereat to our shared marine and coastal ecosystem. The California Natural Resources Agency , on behalf of the California Ocean Protection Council (OPC), today signed a Memorandum of Understanding with the state of Oregon to jointly sponsor a high-level science panel to help address the issue of ocean acidification and hypoxia.
Artist David Eisenhour’s recent sculptures are inspired by science; now tiny organisms usually only viewed through the eyes of a scientist at a microscope can be seen by those who visit the Simon Mace Gallery in Port Townsend, WA. Eisenhour’s new exhibit “Dissolution-Dissillusion” is an interpretation of our changing oceans.
NOAA, academic and international scientific experts are gathering July 24 -26, to further develop the Global Ocean Acidification Network (GOA-ON). The purpose of this network is to facilitate international coordination in order to compare and integrate observational data collection specific to ocean acidification across the globe. This group is designing a global standard for measuring and identifying ocean acidification and is important for establishing a global understanding of ocean acidification including its impacts on ocean life as well as humans. This network will ensure data quality and comparability, facilitated by a structured system based on common standards. It will also assist policy-making through research products and model-based projections of future potential impacts of ocean acidification.
NOAA scientists at the Northwest Fisheries Science Center are beginning to understand future impacts of ocean acidification on Puget Sound’s food web. Drs. Shallin Busch, Chris Harvey, and Paul McElhany applied ocean acidification scenarios to a food web model to explore how the estuary’s food web and its ecosystem services (i.e., fisheries yield and ecotourism) may change over the next fifty years
Scientists at NOAA’s Alaska Fisheries Science Center recently found that some life history parameters of walleye pollock seem to be only minimally affected by high CO2 waters. Dr. Thomas Hurst and University of Alaska colleagues Elena Fernandez and Dr. Jeremy Mathis conducted multiple experiments in conditions mimicking both present day CO2 levels in high latitude waters and those predicted to occur over the next century (280-2100µatm, pH= 7.4- 8.16).