Reference Library: All References

Short- and long-term consequences of larval stage exposure to constantly and ephemerally elevated carbon dioxide for marine bivalve populations

  • Posted on: Tue, 03/29/2016 - 16:19
  • By: petert

While larval bivalves are highly sensitive to ocean acidification, the basis for this sensitivity and the longer-term implications of this sensitivity are unclear. Experiments were performed to assess the short-term (days) and long-term (months) consequences of larval stage exposure to varying CO2 concentrations for calcifying bivalves. Higher CO2 concentrations depressed ...

Ocean acidification of the Greater Caribbean Region 1996-2006

  • Posted on: Tue, 03/29/2016 - 16:15
  • By: petert

The global oceans serve as the largest sustained natural sink for increasing atmospheric carbon dioxide (CO2) concentrations. As this CO2 is absorbed by seawater, it not only reacts causing a reduction in seawater pH (or acidification) but also decreases the carbonate mineral saturation state (Ω), which plays an important role in ...

Effect of ocean acidification on marine fish sperm (Baltic cod: Gadus morhua)

  • Posted on: Tue, 03/29/2016 - 16:08
  • By: petert

Ocean acidification, as a consequence of increasing marine pCO2, may have severe effects on the physiology of marine organisms. However, experimental studies remain scarce, in particular concerning fish. While adults will most likely remain relatively unaffected by changes in seawater pH, early life-history stages are potentially more sensitive – particularly the ...

Impacts of ocean acidification on marine fauna and ecosystem processes

  • Posted on: Tue, 03/29/2016 - 16:02
  • By: petert

Oceanic uptake of anthropogenic carbon dioxide (CO2) is altering the seawater chemistry of the world’s oceans with consequences for marine biota. Elevated partial pressure of CO2 (pCO2) is causing the calcium carbonate saturation horizon to shoal in many regions, particularly in high latitudes and regions that intersect with pronounced hypoxic ...

Climate Change Impacts on Marine Ecosystems

  • Posted on: Tue, 03/29/2016 - 15:57
  • By: petert

In marine ecosystems, rising atmospheric CO2 and climate change are associated with concurrent shifts in temperature, circulation, stratification, nutrient input, oxygen content, and ocean acidification, with potentially wide-ranging biological effects. Population-level shifts are occurring because of physiological intolerance to new environments, altered dispersal patterns, and changes in species interactions. Together with ...

Ocean Acidification: The Other CO2 Problem

  • Posted on: Tue, 03/29/2016 - 14:50
  • By: petert

Rising atmospheric carbon dioxide (CO2), primarily from human fossil fuel combustion, reduces ocean pH and causes wholesale shifts in seawater carbonate chemistry. The process of ocean acidification is well documented in field data, and the rate will accelerate over this century unless future CO2 emissions are curbed dramatically. Acidification alters ...

Have we been underestimating the effects of ocean acidification in zooplankton?

  • Posted on: Tue, 03/29/2016 - 14:42
  • By: petert

Understanding how copepods may respond to ocean acidification (OA) is critical for risk assessments of ocean ecology and biogeochemistry. The perception that copepods are insensitive to OA is largely based on experiments with adult females. Their apparent resilience to increased carbon dioxide (pCO2) concentrations has supported the view that copepods ...

And on Top of All That...Coping with Ocean Acidification in the Midst of Many Stressors

  • Posted on: Sat, 03/26/2016 - 17:34
  • By: petert

Ocean and coastal acidification is occurring due to uptake of atmopsheric CO2, as well as nutrient-fueled respiration in some estuarine and costal environments. Multiple stressors, influenced by human activity, affect the patterns and severity of acidification. Temperature, deoxygenation, and changes in food webs are particualarly important co-stressors. Development of a ...

Limacina helicina shell dissolution as an indicator of decling habitat suitability owing to ocean acidification in the California Current Ecosystem

  • Posted on: Sat, 03/26/2016 - 17:29
  • By: petert

Through combined physical and chemical surveys of water properties, as well as biological sampling, along the Washington-Oregon-California coast in August 2011, this study showed that large portions of shelf water were corrosive to pteropods. A strong correlation between aragonite saturation state and pteropod shell dissolution is shown. It is estimated that ...

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