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New Global Ocean Health report released

Global Ocean Health has just released the second edition of their Ocean Acidification Report. With content specially chosen and written by GOH staff, it includes a unique profile of a Chesapeake Bay, VA oyster grower, new information on the massive scallop die-off in BC, coverage of the new OA legislation in Maine and Maryland, a […]

The effect of ocean acidification on carbon storage and sequestration in seagrass beds; a global and UK context

Ocean acidification will have many negative consequences for marine organisms and ecosystems, leading to a decline in many ecosystem services provided by the marine environment. This study reviews the effect of ocean acidification (OA) on seagrasses, assessing how this may affect their capacity to sequester carbon in the future and providing an economic valuation of […]

State Commission learns of threat from ocean acidifcation (text and video)

WALPOLE, Maine (NEWS CENTER) — A special state commission began studying a problem that marine scientists say poses a real threat to Maine Friday. The problem is called ocean acidification. Scientists say increasing carbon dioxide levels in the atmosphere, which are blamed for climate change, are also causing ocean water to become more acidic. And […]

Our oceans can’t wait any longer

Congress has now adjourned for the month of August with many issues still unaddressed. In the House of Representatives several key policy provisions remain in limbo – extending emergency unemployment insurance, a long-term solution to infrastructure funding, and the broken immigration system. And the House has not taken even a small step toward addressing one […]

8/3-5/14 Keeping the Fraser Rive Close

Sunday, August 3rd...last night they went north toward the Fraser River...today they started to come back down, but they didn't even get to East Pt. when they turned and headed back toward the Fraser River......I guess that goes along...Show More Summary

Video: Massive Barrel Jellyfish Caught on Camera

Barrel jellyfish (Rhizostoma pulmo). (Photo: Flickr Creative Commons / Kennadiver) In recent years, record numbers of barrel jellyfish have swarmed UK waters by the billions. These jellyfish are massive—stretching nearly 3 feet wide with tentacles that can extend for 6 feet. Show More Summary

Ocean News: Great Barrier Reef Health at Greater Risk than Ever Before, Rare Deep Sea Amphipod Caught on Tape, and More

The Eddy Reef in the Great Barrier Reef. (Photo: Paul Toogood / Flickr Creative Commons) - Scientists caught the largest species of amphipod, Alicella gigantean, on camera for the first time. The nearly 1-foot-long creature was spotted four miles below the ocean’s surface. New Scientist

Invitation: ocean acidification discussed as part of an interdisciplinary panel discussion on the ocean-climate divide in international law and policy

When? Wednesday, 20th August 2014, 18:30 – 20:00 Where? Scandic Hotel, (Room tbc), Potsdamer Platz, Berlin, Germany Free Entrance A presentation on ocean acidification will be delivered by Jean-Pierre Gattuso (CNRS) within the framework of a panel discussion on the ocean-climate divide in international law and policy. The event is organised jointly by the Institute for […]

No detectable effect of CO2 on elemental stoichiometry of Emiliania huxleyi in nutrient-limited, acclimated continuous cultures

Effects of CO2 concentration on elemental composition of the coccolithophore Emiliania huxleyi were studied in phosphorus-limited, continuous cultures that were acclimated to experimental conditions for 30 d prior to the first sampling. Show More Summary

Changes in ammonium and pH within intertidal sediments in relation to temperature and the occurrence of non-indigenous bivalves

Our objective was to determine the role of two invasive bivalves on the concentration of ammonium as well as pH within intertidal surface sediments (0 – 3 and 3 – 6 cm depth) and interstitial waters, within the context of a warming environment. To meet this objective we applied both controlled laboratory (microcosm) and field […]

Detecting the unexpected: a research framework for ocean acidification

The threat that ocean acidification (OA) poses to marine ecosystems is now recognized and US funding agencies have designated specific funding for the study of OA. We present a research framework for studying OA that describes it as a biogeochemical event that impacts individual species and ecosystems in potentially unexpected ways. We draw upon specific […]

Environmental pH, O2 and capsular effects on the geochemical composition of statoliths of embryonic squid Doryteuthis opalescens

Spawning market squid lay embryo capsules on the seafloor of the continental shelf of the California Current System (CCS), where ocean acidification, deoxygenation and intensified upwelling lower the pH and [O2]. Squid statolith geochemistry has been shown to reflect the squid’s environment (e.g., seawater temperature and elemental concentration). Show More Summary

South Korea, Ghana, and Curaçao Given Six Months to Stop Illegal Fishing

A bottom trawler in the Southern Baltic. (Photo: Oceana / LX) South Korea, Ghana, and Curaçao must now act quickly to combat illegal fishing, as the European Commission granted these three countries only six more months to improve efforts to stop illegal, unreported, and unregulated (IUU) fishing in their waters.

8-2-14 The Whales Make Their Own Fireworks!

Saturday, August 2nd...well the 17 Residents who were here yesterday are gone today...so off we went to see the group of Ts (transients/Bigg's/marine mammal eating) killer whales the T34s and the T37s who have been spending a lot ofShow More Summary

Ocean News: New Whale Shark Aggregation Discovered, Scientists Name New Dolphin Species, and More

A whale shark (Rhincodon typus). (Photo: Oceana / Tim Calver) - Researchers recently discovered a massive juvenile whale shark aggregation in the Red Sea off Saudi Arabia. This discovery has allowed researchers to learn much more about the species, from their diving patterns to their diets. Phys.org

Defective skeletogenesis and oversized otoliths in fish early stages in a changing ocean

Early life stages of many marine organisms are being challenged by rising seawater temperature and CO2 concentrations, but their physiological responses to these environmental changes still remain unclear. In the present study, we show that future predictions of ocean warming (+4°C) and acidification (?pH = 0.5 units) may compromise the development of early life stages […]

Science in the hands that need it: Turning the tide on ocean acidification in New Zealand

In 2013, I worked on a shellfish boat in New Zealand. We used hydraulic systems to lift lines of shellfish out of the water, conveyor belts to sort them, and packaged mussels by the thousands in giant, half ton sacks. A far cry from the low-tech nighttime dredging from a longtail boat I saw in […]

Intracellular pH and its response to CO2-driven seawater acidification in symbiotic versus non-symbiotic coral cells

Regulating intracellular pH (pHi) is critical for optimising the metabolic activity of corals, yet the mechanisms involved in pH regulation and the buffering capacity within coral cells are not well understood. Our study investigated...Show More Summary

Seattle Times ‘Sea Change’ series wins SEJ award

“Sea Change, the Pacific’s Perilous Turn,” the Seattle Times’ 2013 series on ocean acidification and its dramatic effects on everything from remote islands to the local fish market, has won the 2013-2014 Society of Environmental Journalists’ Kevin Carmody Award for Outstanding In-depth Reporting, Large Market. The series was the work of Times reporter Craig Welch […]

Free-ocean CO2 enrichment (FOCE) systems: present status and future developments

Free-ocean CO2 enrichment (FOCE) systems are designed to assess the impact of ocean acidification on biological communities in situ for extended periods of time (weeks to months). They overcome some of the drawbacks of laboratory experiments and field observations by enabling (1) precise control of CO2 enrichment by monitoring pH as an offset of ambient […]

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