Blog Profile / Ocean Acidification

Filed Under:Biology / Marine Biology
Posts on Regator:5729
Posts / Week:19.8
Archived Since:July 23, 2010

Blog Post Archive

Predicting ocean chemistry using Microsoft Azure (text & video)

Shellfish farmer Bill Dewey remembers the first year he heard of ocean acidification, a phrase that means a change in chemistry for ocean water. It was around 2008, and Dewey worked for Taylor Shellfish, a company that farms oysters in ocean waters off the coast of Washington. That year, thousands of tiny “seed” oysters died […]

GOOS webinar: “PI-GOOS and the State of Operational Oceanography in the Pacific Islands Region”, 8 February 2016

Date & time: 8 February 2016, 23:00 UTC Presented by: Dr Tommy Moore, PI-GOOS Officer The Pacific Islands Global Ocean Observing System Regional Alliance is the largest of the GOOS Regional Alliances and is made up of 21 Pacific Island Countries and Territories. The “large island states” of the region are composed of a large […]

Career opportunity: Assistant Research Scientist in Estuarine Biogeochemical Modeling, University of Maryland, USA

Location: University of Maryland Center for Environmental Science – Chesapeake Biological Laboratory, Solomons, Maryland, USA Salary: Competitive salary, benefits End Date: Review of applications will begin immediately and continue until a qualified candidate is identified. Show More Summary

Porewater acidification alters the burrowing behavior and post-settlement dispersal of juvenile soft-shell clams (Mya arenaria)

Although ocean acidification will impact marine organisms in the future, few studies have addressed the effects of sedimentary porewater acidification on benthic invertebrates. This study suggests that burrowing behavior and post-settlement dispersal of juvenile bivalves are altered by porewater acidification under present day conditions. Show More Summary

Drawing boundaries: boundary arrangements of the IPCC Working Groups

The present research investigates how the IPCC’s Working Groups safeguard their scientific character while communicating with policymakers. Due to the different nature of Working Groups’ assessments, all Working Groups make different...Show More Summary

Ocean pH time-series and drivers of variability along the northern Channel Islands, California, USA

Eastern boundary current systems (EBCSs) experience dynamic fluctuations in seawater pH due to coastal upwelling and primary production. The lack of high-resolution pH observations in EBCSs limits the ability to relate field pH exposures to performance of coastal marine species under future ocean change (acidification, warming). Show More Summary

Combined effects of climate change and methylmercury exposure on the ecophysiology of juvenile meagre

The increase in anthropogenic carbon dioxide (CO?) in the atmosphere is leading to higher ocean temperature and lower pH. At the same time, mercury released into the environment is also a fact, being deposited in the ocean. Thus, marine animals are being challenged by ocean warming, acidification and contamination simultaneously. However, their biological and physiological […]

Strong ion regulatory abilities enable the crab Xenograpsus testudinatus to inhabit highly acidified marine vent systems

Hydrothermal vent organisms have evolved physiological adaptations to cope with extreme abiotic conditions including temperature and pH. To date, acid-base regulatory abilities of vent organisms are poorly investigated, although this physiological feature is essential for survival in low pH environments. Show More Summary

Effects of pCO2 on photosynthesis and respiration of tropical scleractinian corals and calcified algae

The effects of ocean acidification (OA) on coral reefs have been studied thoroughly with a focus on the response of calcification of corals and calcified algae. However, there are still large gaps in our knowledge of the effects of OA on photosynthesis and respiration of these organisms. Comparisons among species and determination of the functional […]

Knauss Fellow to concentrate on ocean acidification with NOAA

With several academic publications about climate change in the Arctic under her belt, a completed thesis on Arctic food security, and international affairs experience, Knauss Fellow Monique Baskin is eager to begin as an ocean acidification...Show More Summary

The Atlantic Ocean is acidifying at a rapid rate

A new study finds the ocean is absorbing 50 percent more carbon than it was a decade ago, and that could have dire consequences for dolphins, whales, and other marine life. Over the past 10 years, the Atlantic Ocean has soaked up 50 percent more carbon dioxide than it did the decade before, measurably speeding […]

Physiological response of the cold-water coral Desmophyllum dianthus to thermal stress and ocean acidification

Rising temperatures and ocean acidification driven by anthropogenic carbon emissions threaten both tropical and temperate corals. However, the synergistic effect of these stressors on coral physiology is still poorly understood, in particular for cold-water corals. Show More Summary

Water column distribution of stable isotopes and carbonate properties in the south-Eastern Levantine Basin (Eastern Mediterranean): Vertical and temporal change

Water column distributions of the oxygen isotopic composition of Sea-Water (?18OSW) and the stable carbon isotope ratio of Dissolved Inorganic Carbon (?13CDIC), Total Alkalinity (AT) and the pH (Total scale) at 25 °C (25°CpHTotal) were investigated along the Southeast Mediterranean (SE-Med) shelf and open water, during 2009–2010. Show More Summary

Shifts in the microbial community in the Baltic Sea with increasing CO2

Ocean acidification, due to dissolution of anthropogenically produced carbon dioxide is considered a major threat to marine ecosystems. The Baltic Sea, with extremely low salinity and thus low pH buffering capacity, is likely to experience stronger variation in pH than the open ocean with increasing atmospheric carbon dioxide. We examined the effects of ocean acidification […]

Internship opportunity with NOAA: “Ocean Acidification Vulnerability State by State (MD)”

Summary / Description The NOAA Ocean Acidification Program is interested in bringing on up to two college interns to assist us with research into how current and future impacts of ocean acidification may affect coastal states in an effort to support the development of a targeted outreach strategy. The intern will do research on the economic […]

Scientists seek ways to treat acidified ocean, keep shellfish hatcheries open (text & audio)

New technology allows monitoriing of ocean acidification as it occurs. Alaska’s Shellfish hatcheries are worried that they may have to shut down their operations like hatcheries further south did when waters got too acidic to grow healthy shellfish. Willey Evans, a researcher with the Hakai Institute in British Columbia is working with Aleutic Pride shellfish […]

“OA-ICC Highlights”, October-December 2015

The “OA-ICC Highlights” is a one-page quarterly newsletter summarizing the project’s main activities and achievements, over a period of three months, in its three major areas of work: science, capacity building and communication. A special section entitled “OA-ICC Highlights” was also created on the OA-ICC website. In order to access all the previous editions of […]

Ocean acidification addressed in the “World Ocean Assessment I”

The First Global Integrated Marine Assessment, also known as the “World Ocean Assessment I” is the result of the work invested by hundreds of scientists from many countries, representing various disciplines and steered by a 22-member Group of Experts. This expert task force examined the state of knowledge of the world’s oceans and the ways in […]

A short-term survival experiment assessing impacts of ocean acidification and hypoxia on the benthic foraminifer Globulimina turgida

The oceans are absorbing increasing amounts of carbon dioxide (CO2) as a result of rising anthropogenic atmospheric CO2 emissions. This increase in oceanic CO2 leads to the lowering of seawater pH, which is known as ocean acidification (OA). Simultaneously, rising global temperatures, also linked to higher atmospheric CO2 concentrations, result in a more stratified surface […]

Combined effects of ocean acidification, warming, and hypoxia on marine organisms

A suite of parallel anthropogenic changes affects contemporary marine ecosystems. Excessive carbon dioxide (CO2) pollution results in warmer, more acidic oceans with lower dissolved oxygen (DO) levels, meanwhile the emission of reactive...Show More Summary

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