Blog Profile / Ocean Acidification


URL :http://oceanacidification.wordpress.com
Filed Under:Biology / Marine Biology
Posts on Regator:5146
Posts / Week:21
Archived Since:July 23, 2010

Blog Post Archive

Ocean acidification spells trouble for shellfish industry

If mollusks, particularly the shelled and delicious variety, can feel emotions, then they must be getting nervous. Not of happy hour regulars eyeing the one-dollar oysters, mind you, but of the creeping acidity in the oceans. According to a new study, clams, mussels, oysters and their brethren shouldn’t be the only ones feeling anxious, because […]

Sniffer dogs to transform the aquaculture industry

A recent breakthrough by scientists at the University of Poisson, Canada has discovered the use of sniffer dogs in the detection of acidification in water samples. Although the training and research is ongoing, the university has released promising data suggesting a 98% success rate in the detection of subtle changes in water acidity. Dogs have […]

Acidification

This chapter outlines the cause-effect pathway of terrestrial and aquatic acidification from air emissions to ecosystem damage. Carbon dioxide is the main cause of (coastal) marine acidification, while nitrogen and sulfur inputs are underlying the damage due to freshwater and terrestrial acidification. Show More Summary

Effect of simulated ocean acidification on chitin content in the shell of white shrimp, Litopenaeus vannamei

This study examined the effect of simulated ocean acidification on chitin content in the shell of marine white shrimp,Litopenaeus vannamei. The experiment was conducted in tanks where a change in carbonate chemistry characterizing theocean acidification related to climate change was induced by supplying the exogenous carbon dioxide to the sea water. Show More Summary

Training course “Effects of Ocean Acidification and Global Warming on Mediterranean Marine Organisms: in situ and laboratory experiment on selected calcifying taxa”, September 2015, Italy

Dates and location: 2-10 September 2015, Regional Natural Park of Porto Venere, La Spezia, Italy Language: English Attendance and study mode: Campus / Full time Available places: min 8 – max 15 The course aims to introduce students to the...Show More Summary

The ecology of ocean acidification: integrating the effects of pH variation among other environmental stressors on biogeography and organismal performance in rocky intertidal communities

Ocean Acidification (OA) has emerged as a major threat to marine ecosystems, particularly regarding calcifying organisms. A growing body of literature describing laboratory investigations into pH stress indicates broadly deleteriousShow More Summary

Macroalgae contribute to nested mosaics of pH variability in a sub-Arctic fjord

The Arctic Ocean is considered the most vulnerable ecosystem to ocean acidification (OA) and large-scale assessments of pH and the saturation state for aragonite (?arag) indicate that it is already close to corrosive states (?arag < 1). In high-latitude coastal waters the regulation of pH and ?arag is far more complex than offshore because increased […]

U.S. action needed on ocean acidification

Dr. Thomas Armstrong is the Deputy Secretary of the Arctic Monitoring and Assessment Programme and leads the Adaptation Actions for a Changing Arctic. He previously served in the Obama Whitehouse as the Executive Director of the U.S.Global Change Reaserch Program. This article originally appeared in The Circle 01.15. The ocean regulates our climate and our […]

Ocean acidification is topic of science presentation at Modesto Junior College

The Modesto Area Partners in Science (MAPS) will offer a presentation on “Ocean Acidification: The Other CO2 Problem” by Tessa Hill, U.C. Davis associate professor in Earth and Planetary Sciences.  The free public MAPS event will be held on Friday, April 10, at 7:30 p.m. in Sierra Hall 132 on the Modesto Junior College West […]

OA-ICC bibliographic database updated

An updated version of the OA-ICC bibliographic database is now available online. The database contains nearly 2500 references and includes citations, abstracts and assigned keywords. Updates are made on a regular basis. Subscribe online...Show More Summary

New England states following a model set by Maine to reduce ocean acidity

A group of state legislators believe the acidity will endanger multimillion dollar fishing industries if left unchecked. A group of state legislators in New England wants to form a multistate pact to counter increasing ocean acidity along the East Coast, a problem they believe will endanger multimillion-dollar fishing industries if left unchecked. The legislators’ effort […]

Another Voice: Increase in carbon dioxide threatens health of oceans

Most of the current concern about the ever-increasing concentration of carbon dioxide in the atmosphere has focused on global climate change. This is a serious problem, but carbon dioxide is also adversely affecting our oceans. Oceans cover 71 percent of the earth’s surface and, while they are unseen by most of us, they are critical […]

Senators: ocean acidification monitoring critical to nation’s $2.8B shellfish industry

In the letter to the Senate Appropriations Committee, Cantwell called for continued support of the National Oceanic and Atmospheric Administration’s (NOAA) Integrated Ocean Acidification Program and the Integrated Ocean Observing System (IOOS). Show More Summary

Influence of ocean acidification on the complexation of iron and copper by organic ligands in estuarine waters

The uptake of anthropogenic atmospheric CO2 by the oceans causes a shift in the carbonate chemistry system which includes a lowering of pH; this process has been termed ocean acidification. Our understanding of the specific effects of ocean acidification on chemical speciation of trace metals, in particular on organic-metal interactions, is limited. In this study […]

Differential tolerances to ocean acidification by parasites that share the same host

Ocean acidification (OA) is predicted to cause major changes in marine ecosystem structure and function over the next century, as species-specific tolerances to acidified seawater may alter previously stable relationships between coexisting organisms. Show More Summary

Effects of ocean acidification on the marine calcium isotope record at the Paleocene–Eocene Thermal Maximum

Carbonates are used extensively to reconstruct paleoclimate and paleoceanographic conditions over geologic time scales. However, these archives are susceptible to diagenetic alteration via dissolution, recrystallization and secondary precipitation, particularly during ocean acidification events when intense dissolution can occur. Show More Summary

Effects of ocean acidification caused by rising CO2 on the early development of three mollusks

Increasing atmospheric CO2 can decrease seawater pH and carbonate ions, which may adversely affect the larval survival of calcareous animals. In this study, we simulated future atmospheric CO2 concentrations (800, 1500, 2000 and 3000 ppm) and examined the effects of ocean acidification on the early development of 3 mollusks (the abalones Haliotis diversicolor and H. […]

The electric coral acid test

Last Wednesday afternoon, a group of scientists and a handful of lucky onlookers crowded around a heap of computer monitors onboard a NOAA research vessel in between Santa Cruz and Anacapa islands. In the middle of this scrum were two men controlling a remotely operated vehicle (ROV) 500 feet beneath the boat’s hull. Later in the […]

Shell-shocked: ocean acidification likely hampers tiny shell builders in Southern Ocean

A University of Colorado Boulder study shows a ubiquitous type of phytoplankton — tiny organisms that are the base of the marine food web – appears to be suffering from the effects of ocean acidification caused by climate change. According to the study authors, the single-celled organism under study is a type of “calcifying” plankton […]

ARC Research Associate – Ocean acidification on benthic marine life

Job no: 493373 Work type: Fixed term – Full-time Location: Adelaide Categories: Faculty of Sciences Closing date: 10 April 2015 The University of Adelaide is one of Australia’s leading Group of Eight, research-intensive universities and is consistently ranked among the top 1% of universities in the world. Established in 1874, it is Australia’s third oldest […]

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