Blog Profile / Ocean Acidification

Filed Under:Biology / Marine Biology
Posts on Regator:6669
Posts / Week:19.2
Archived Since:July 23, 2010

Blog Post Archive

2017 Annual World Oceans Day Oceanic Photo Competition

Deadline for submissions: 12 May 2017! Photography is a powerful medium of expression that can be used to communicate strong positive messages about a subject. This open and free photo competition seeks to inspire the creation and dissemination of such positive imagery, which conveys the beauty and importance of the ocean and humankind’s relation to […]

Two master projects in biology/zoology/molecular biology: “Effects of climate change factors on Decapod crustaceans”, Alfred Wegener Institut, Bremenhaven, Germany

Affiliation: Alfred-Wegener-Institute Helmholtz Centre for Polar and Marine Research Biosciences, section Integrative Ecophysiology Start date: Immediately Background: We use physiological, biochemical and molecular methods to studyShow More Summary

Environmental dependence of the correlations between stoichiometric and fatty acid-based indicators of phytoplankton nutritional quality

Marine phytoplankton is simultaneously affected by multiple environmental drivers. To-date integrative assessments of multiple combined effects are rare on the relationship between elemental stoichiometry and biochemicals in marine phytoplankton. Show More Summary

Cuba inaugurates ocean acidification observatory

Dazhu Yang, deputy director general of the International Atomic Energy Agency’s (IAEA) Department of Technical Cooperation, inaugurated the Caribbean Regional Ocean Acidification Observatory in Cienfuegos. Cienfuegos.– On March 22, Dazhu...Show More Summary

WITNESS: Investigating ocean acidification (Part 2)

In the second part of his WITNESS blog investigating the dangers of increasing ocean acidification, CONOR PURCELL learns that increase rates are already 10 times higher than at any time in the last 55 million years which, naturally, does not bode well for all ocean ecosystems The continental shelf rolls out for some hundreds of […]

Deadline for abstract submission approaching: “Ocean Ecosystems Changes Under Multiple Stressors”, Goldschmidt Conference 2017, 13-18 August 2017, Paris, France

Deadline for abstract submission: 1 April 2017! Convenors: Adrienne Sutton, Sam Dupont Keynote: Jacob Silverman (IOLR, Israel) Natural variability in key chemical and physical drivers influences marine life at a multitude of time and space scales. Our ability to project the response of ecosystems to a changing ocean is limited by uncertainties in both present […]

Marine fish intestine responds to ocean acidification producing more carbonate aggregates (not peer reviewed)

Marine fish contribute to the carbon cycle by producing mineralized intestinal aggregates generated as by-products of their osmoregulation. Here we aimed at characterizing the control of intestinal aggregate production in the gilthead sea bream in response to near future increases of environmental CO2. Show More Summary

Scientists receive grant to study how climate change and ocean acidification affect marine organisms

Mote Marine Laboratory scientist Dr. Emily Hall and Eckerd College scientist Dr. Cory Krediet recently received a Protect Our Reefs license plate grant to study ocean acidification and climate change conditions on corals using a sea anemone as a model organism. As many as 50 percent of the marine animals, plants and other organisms in […]

WITNESS: Investigating ocean acidification (Part 1)

In the first of his two-part WITNESS blog CONOR PURCELL joins the Irish marine scientists aboard the Celtic Explorer to learn more about how they are testing for ocean acidification As carbon dioxide levels in our atmosphere continue to increase, more and more of the gas is drawn down into the world’s oceans, causing the […]

Calcification responses to diurnal variation in seawater carbonate chemistry by the coral Acropora formosa

Significant diurnal variation in seawater carbonate chemistry occurs naturally in many coral reef environments, yet little is known of its effect on coral calcification. Laboratory studies on the response of corals to ocean acidification...Show More Summary

Factors affecting coral recruitment and calcium carbonate accretion rates on a Central Pacific coral reef

Coral recruitment and calcium carbonate (CaCO3) accretion are fundamental processes that help maintain coral reefs. Many reefs worldwide have experienced degradation, including a decrease in coral cover and biodiversity. Successful coral...Show More Summary

Effects of elevated CO2 and nitrogen supply on the growth and photosynthetic physiology of a marine cyanobacterium, Synechococcus sp. PCC7002

Ocean acidification due to increasing atmospheric CO2 concentration and coastal eutrophication are growing global threats to affect marine organisms and ecosystem health. However, little is known about their interactive impacts on marine picocyanobacteria which contribute to a large proportion of primary production. Show More Summary

Extinction selectivity among marine fishes during multistressor global change in the end-Permian and end-Triassic crises

Ancient mass extinction events such as the end-Permian and end-Triassic crises provide analogues for multistressor global change of ocean warming, pH reduction, and deoxygenation. Organism physiology is hypothesized to be a key trait...Show More Summary

Environmental controls on the growth, photosynthetic and calcification rates of a Southern Hemisphere strain of the coccolithophore Emiliania huxleyi

We conducted a series of diagnostic fitness response experiments on the coccolithophore, Emiliania huxleyi, isolated from the Subtropical Convergence east of New Zealand. Dose response curves (i.e., physiological rate vs. environmental driver) were constructed for growth, photosynthetic, and calcification rates of E. Show More Summary

Ecophysiological responses to elevated CO2 and temperature in Cystoseira tamariscifolia (Phaeophyceae)

Ocean acidification increases the amount of dissolved inorganic carbon (DIC) available in seawater which can benefit photosynthesis in those algae that are currently carbon limited, leading to shifts in the structure and function of seaweed communities. Show More Summary

?????????????????????????La révolte de l’océan (in French)

Chers Collègues, Chers Parents, Puissent Splic et Sploc, deux gouttes d’eau attachantes et curieuses, amener les enfants à comprendre que l’excès de rejet de CO2 dans l’atmosphère perturbe l’équilibre de l’océan et de sa vie sous-marine, tel est l’objectif de ce récit. Show More Summary

Did previous ocean acidification studies underestimate impacts on coastal species?

A new study with scientists from PML says that in order to better understand the impacts of Ocean Acidification (OA) on marine ecosystems, future studies should use more realistic scenarios in experiments. Ocean acidification is the ongoing decrease in ocean pH caused by human CO2 emissions, such as the burning of fossil fuels. This alteration in […]

University professor advances research on ocean acidification

Wei-Jun Cai, a professor in the School of Marine Science and Policy, discovered his love for marine science when he was in middle school and watched an educational movie about how Mount Everest originated in the ocean. This opened his eyes and immediately attracted him to science. He described his career in marine science as […]

Nitrogen nutritional condition affects the response of energy metabolism in diatoms to elevated carbon dioxide

Marine phytoplankton are expected to benefit from enhanced carbon dioxide (CO2), attributable largely to down-regulation of the CO2 concentrating mechanism (CCM) which saves energy resources for other cellular processes. However, the nitrogen (N) nutritional condition (N-replete vs. Show More Summary

Global variability and changes in ocean total alkalinity from Aquarius satellite data

This work demonstrates how large-scale Aquarius satellite salinity data have provided an unprecedented opportunity when combined with total alkalinity (TA) equations as a function of salinity and temperature to examine global changes in the CO2 system. Show More Summary

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