Blog Profile / Ocean Acidification

Filed Under:Biology / Marine Biology
Posts on Regator:6166
Posts / Week:18.9
Archived Since:July 23, 2010

Blog Post Archive

Climate change: Scientists seek to find the ‘tipping point’ of ocean acidification around NZ

Kiwi scientists are simulating how New Zealand’s coastal environment will respond to potentially disastrous effects of acidification caused by climate change. The new study aims to pinpoint a possible “tipping point” at which ecosystems could collapse – potentially threatening our aquaculture industry. Show More Summary

Virtual reality shines light on ocean acidification

Software released last week by Stanford researchers allows anyone with virtual reality (VR) gear to witness ocean acidification firsthand. Developed by Stanford’s Virtual Human Interaction Lab, the free simulation takes users on an educational...Show More Summary

Internship opportunity: “Effect of ocean acidification on the small RNA expression of a coral”, King Adbullah University of Science and Technology, Kingdom of Saudi Arabia

Internship description Small RNAs (e.g. small interfering RNA, microRNA, Piwi-interacting RNA) are essential in the correct functioning of many biological processes of metazoans. To investigate the effect of ocean acidification on the small RNA profile of corals, we extracted and sequenced the small RNA fraction of a coral that was subjected to four different pCO2 […]

Processes of multibathyal aragonite undersaturation in the Arctic Ocean

During three years of study (2010-2012), the western Arctic Ocean was found to have unique aragonite saturation profiles with up to three distinct aragonite undersaturation zones. This complexity is produced as inflow of Atlantic- and...Show More Summary

Anthropogenic threats to coastal and marine biodiversity: A review

Healthy oceans provide a wide range of goods and services essential for human life. Provision of food and medicines, detoxification of pollutants and recycling of nutrients are of value for human use. These goods and services are ‘for free’ but require intact marine ecosystems. Coastal and marine biodiversity and their supporting ecosystems are now subject […]

Effects of ocean acidification on embryo development: Does encapsulation matter?

As the concentration of CO2 in surface seawaters increases (ocean acidification, or OA) the saturation of calcium carbonate decreases, preventing marine organisms from creating shells and other calcified structures. These effects ofShow More Summary

Lessons from two high CO2 worlds – future oceans and intensive aquaculture

Exponentially rising CO2 (currently ~400 ?atm) is driving climate change and causing acidification of both marine and freshwater environments. Physiologists have long known that CO2 directly affects acid–base and ion regulation, respiratory function and aerobic performance in aquatic animals. Show More Summary

Species-specific responses of temperate macroalgae with different photosynthetic strategies to ocean acidification: a mesocosm study

Concerns about how ocean acidification will impact marine organisms have steadily increased in recent years, but there is a lack of knowledge on the responses of macroalgae. Here, we adopt an outdoor continuous-flowing mesocosm system...Show More Summary

Antagonistic effects of ocean acidification and rising sea surface temperature on the dissolution of coral reef carbonate sediments

Increasing atmospheric CO2 is raising sea surface temperature (SST) and increasing seawater CO2 concentrations, resulting in a lower oceanic pH (ocean acidification; OA), which is expected to reduce the accretion of coral reef ecosystems. Although sediments comprise most of the calcium carbonate (CaCO3) within coral reefs, no in situ studies have looked at the combined […]

Acidification counteracts negative effects of warming on diatom silicification

Diatoms are a significant group contributing up to 40?% of annual primary production in the oceans. They have a special siliceous cell wall that, acting as a ballast, plays a key role in the sequestration of global carbon and silica. Diatoms dominate primary production in the Arctic Ocean, where global climate change is causing increases […]

Seminar: “Ocean acidification and marine phytoplankton”, 17 November 2016, SCRIPPS Institution of Oceanography

Speaker: Francois Morel Location: Hubbs 4500 Time: 3:00pm For more information on this event, contact: Jane Willenbring, jwillenbring(at) Go to website.Filed under: Courses and training

Dan Haifley, Our Ocean Backyard: Counteracting changes in ocean chemistry

While many in the science community are concerned with reducing greenhouse gas emissions in order to combat climate change, work is also underway in response to ocean acidification, a change in the pH of the ocean resulting from the ocean’s absorption of excess carbon from the atmosphere. The governments of California, Oregon, Washington and British […]

The effect of acidification on the bioavailability and electrochemical lability of zinc in seawater

A poorly studied but potentially important consequence of the CO2-induced acidification of the surface ocean is a possible change in the bioavailability of trace metals, which play a critical role in the productivity and population dynamics of marine ecosystems. Show More Summary

Quantifying the volcanic emissions which triggered Oceanic Anoxic Event 1a and their effect on ocean acidification

The Cretaceous Oceanic Anoxic Event 1a (Early Aptian) is thought to be causally related to the eruption of the Ontong–Java Plateau large igneous province. This study uses osmium isotope records to quantify the magnitude of the respective CO2 emissions up to the onset of Ocean Anoxic Event 1a, and model the associated changes in carbonate […]

IAEA INT7019 Task Force Meeting on the Development and Standardization of Methodology, 12-14 October, Monaco

The International Atomic Energy Agency (IAEA) convened an expert meeting on the development of simplified methodology and ocean acidification research kits from 12-14 October 2016 at the IAEA Environment Laboratories in Monaco. The meeting...Show More Summary

Meeting of the Biology Working Group of the Global Ocean Acidification Observing Network (GOA-ON), 10-11 October 2016, Monaco

The first in-person meeting of the Biology Working Group of the Global Ocean Acidification Observing Network (GOA-ON) took place from 10-11 October 2016 at the IAEA Environment Laboratories in Monaco, hosted by the OA-ICC. The meeting brought together 14 participants from 9 countries and was led by the co-chairs of the Working Group, Mr Sam […]

WESTPAC scientists step up efforts to combat ocean acidification

46 Scientists from the region gathered again in Phuket, Thailand, 29?31 August 2016, stepping up their efforts to develop a long term program monitoring the ecological impacts of ocean acidification on coral reef ecosystems for the region. The three-day WESTPAC event is a follow-up to previous two workshops in 2015, with the aim to review […]

The ocean acidification news stream celebrates its 10th birthday!

Can you believe it has been 10 years since the Ocean Acidification news stream featured its first post? On 5 July 2006, the news stream embarked on its mission to provide regular updates on ocean acidification-related activities – scientific papers, media coverage, jobs, meetings and other events etc., and it has turned into an essential […]

The effects of ocean acidification and a carbon dioxide capture and storage leak on the early life stages of the marine mussel Perna perna (Linneaus, 1758) and metal bioavailability

The study assesses the effects of carbon dioxide capture and storage (CCS) leaks and ocean acidification (OA) on the metal bioavailability and reproduction of the mytilid Perna perna. In laboratory-scale experiments, CCS leakage scenarios (pH 7.0, 6.5, 6.0) and one OA (pH 7.6) scenario were tested using metal-contaminated sediment elutriates and seawater from Santos Bay. […]

Coral bleaching, acidification and prevention

OUR sea floor is a habitat and is rich in species that produce calcium carbonate shells or skeletons called marine calcifiers. Sea urchins, sea stars, coralline algae, crustaceans and numerous mollusks, such as mussels, find their home here. According to experts, marine calcifiers play an important role in global biogeochemical cycles and serve important ecosystem […]

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