Blog Profile / Ocean Acidification

Filed Under:Biology / Marine Biology
Posts on Regator:5935
Posts / Week:18.7
Archived Since:July 23, 2010

Blog Post Archive

How ocean acidification imperils the lowly sea snail (audio)

Increasing acidity in the world’s oceans is affecting far more than coral reefs. A local researcher is studying how changing pH in seawater may alter the balance of life in tide pools along the North Coast. Bruce Robinson, KRCB North Bay Public Media, 20 August 2016. Audio.Filed under: Media coverage

Rapid transcriptional acclimation following transgenerational exposure of oysters to ocean acidification

Marine organisms need to adapt in order to cope with the adverse effects of ocean acidification and warming. Transgenerational exposure to CO2 stress has been shown to enhance resilience to ocean acidification in offspring from a number of species. However, the molecular basis underlying such adaptive responses is currently unknown. Here, we compared the transcriptional […]

Effects of model assumptions and data quality on spatial cumulative human impact assessments

Aim Many studies have quantified and mapped cumulative human impacts on marine ecosystems. These maps are intended to inform management and planning, but uncertainty in them has not been studied in depth. This paper aims to: (1) quantify the uncertainty in cumulative impact maps and related spatial modelling results; (2) attribute this uncertainty to specific […]

The Global Ocean Data Analysis Project version 2 (GLODAPv2) – an internally consistent data product for the world ocean

Version 2 of the Global Ocean Data Analysis Project (GLODAPv2) data product is composed of data from 724 scientific cruises covering the global ocean. It includes data assembled during the previous efforts GLODAPv1.1 (Global Ocean Data Analysis Project version 1.1) in 2004, CARINA (CARbon IN the Atlantic) in 2009/2010, and PACIFICA (PACIFic ocean Interior CArbon) […]

Ocean acidification threatens cod recruitment in the Atlantic

International team of researchers led by GEOMAR finds increased larvae mortality 24 August 2016/Kiel. Increasing ocean acidification could double the mortality of newly-hatched cod larvae. This would put populations of this economically important fish species more and more under pressure if exploitation remains unchanged. Show More Summary

Ocean acidification decreases plankton respiration: evidence from a mesocosm experiment (update)

Anthropogenic carbon dioxide (CO2) emissions are reducing the pH in the world’s oceans. The plankton community is a key component driving biogeochemical fluxes, and the effect of increased CO2 on plankton is critical for understanding the ramifications of ocean acidification on global carbon fluxes. Show More Summary

Climate change vulnerability assessment for the Papah?naumoku?kea Marine National Monument

Ocean acidification is among the stressors assessed in a recently launched NOAA report titled “Climate Change Vulnerability Assessment for the Papah?naumoku?kea Marine National Monument”. Wagner D. & Polhemus D.A. (Eds.), 2016. Climate change vulnerability assessment for the Papah?naumoku?kea Marine National Monument, 99 pp. Show More Summary

Uncharted waters: an uncertain future for Dungeness crabs on U.S. West Coast (text and video)

E360 Video Contest Award Winner Dungeness crab is one of the most valuable commercial fisheries on the U.S. West Coast, worth nearly $170 million in Washington, Oregon, and California in 2014. These crabs are also a vital part of the region’s marine food web, their larvae serving as prey for numerous fish species. But as […]

Ocean acidification effects on Atlantic cod larval survival and recruitment to the fished population

How fisheries will be impacted by climate change is far from understood. While some fish populations may be able to escape global warming via range shifts, they cannot escape ocean acidification (OA), an inevitable consequence of the dissolution of anthropogenic carbon dioxide (CO2) emissions in marine waters. Show More Summary

Time to wake up: Coral reefs and ocean acidification (video)

Sen. Whitehouse discusses the calamity unfolding in our oceans as billions of tons of carbon pollution drive ocean acidification and warm our seas, leading to massive bleaching of the world’s coral reefs. Senator Sheldon Whitehouse Youtube channel, 27 April 2016. Video.Filed under: Presentations, Web sites and blogs

A longitudinal study of Pacific oyster (Crassostrea gigas) larval development: isotope shifts during early shell formation reveal sub-lethal energetic stress

Three cohorts of Pacific oyster (Crassostrea gigas) larvae at Whiskey Creek Shellfish Hatchery (WCH) in Netarts Bay, Oregon, were monitored for stable isotope incorporation and biochemical composition: one in May 2011 and two in August 2011. Along with measures of growth and calcification, we present measurements of stable isotopes of carbon in water, algal food, […]

Simulated leakage of high pCO2 water negatively impacts bivalve dominated infaunal communities from the Western Baltic Sea

Carbon capture and storage is promoted as a mitigation method counteracting the increase of atmospheric CO2 levels. However, at this stage, environmental consequences of potential CO2 leakage from sub-seabed storage sites are still largely unknown. Show More Summary

Development of Euphausia pacifica (krill) larvae is impaired under pCO2 levels currently observed in the Northeast Pacific

Despite the critical importance of euphausiids in marine food webs, little ocean acidification (OA) research has focused on them. Euphausia pacifica is a dominant and trophically important species of euphausiid throughout the North Pacific and the California Current Ecosystem, where low pH conditions are occurring in advance of those in the global ocean. We assessed […]

Aragonite saturation states and pH in western Norwegian fjords: seasonal cycles and controlling factors, 2005–2009

The uptake of anthropogenic carbon dioxide (CO2) by the ocean leads to a process known as ocean acidification (OA), which lowers the aragonite saturation state (?Ar) and pH, and this is poorly documented in coastal environments including fjords due to lack of appropriate observations. Here we use weekly underway data from the Voluntary Observing Ships […]

Scientists urge West Coast to prepare for approaching acidification (audio & text)

A group of scientists is warning that West Coast waters are quickly growing more acidic. They issued a report this week urging coastline states to adopt a plan to deal with the ocean’s rapidly changing chemistry. Seawater grows acidic when carbon dioxide seeps in from the atmosphere. The change can disorient fish, dissolve shells, and […]

Can corals keep up with ocean acidification?

An interdisciplinary team of researchers led by University of Delaware professors Wei-Jun Cai and Mark Warner has successfully measured both pH and carbonate ion concentration directly inside the calcifying fluid found in coral, an important...Show More Summary

Shrimps sound ocean acidity alarm

The effect of the sea absorbing increased carbon dioxide in the air has damaging consequences for the noisy snapping shrimp and marine life in coastal rock pools. The slow change in water chemistry as more and more atmospheric carbon dioxide dissolves in the sea and causes acidification could make the oceans much less noisy and […]

Ocean acidification’s effect on crab studied

Studies by federal fisheries researchers are documenting the affects ocean acidification are having on Alaska’s crab fisheries and the potential for all waters in Alaska to be in a corrosive situation for the year 2100. The big unanswered question, says Bob Foy, who oversees the shellfish assessment program at the Alaska Fisheries Science Center in […]

Role of deep convection on anthropogenic CO2 sequestration in the Gulf of Lions (northwestern Mediterranean Sea)

The most active deep convection area in the western Mediterranean Sea is located in the Gulf of Lions. Recent studies in this area provides some insights on the complexity of the physical dynamics of convective regions, but very little is known about their impacts on the biogeochemical properties. The CASCADE (CAscading, Surge, Convection, Advection and […]

Massachusetts tackling acidification

Count Massachusetts as the latest state to take a step towards fighting ocean acidification. Last week I attended a forum hosted by ocean champions Congressman Bill Keating (MA-9th) and Massachusetts State Representative Tim Madden (D-Nantucket) at the Woods Hole Research Center.  While there, I learned about a state bill sponsored by Rep. Madden to form […]

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