Does encapsulation protect embryos from the effects of ocean acidification? The example of Crepidula fornicata.

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Unlike most marine invertebrates, the common slipper shell broods its embryos in capsules. This study found that the capsules do not protect the embryos from ocean acidification. When brooded under ocean acidification conditions, larvae had shells that were 6 percent shorter, and the percentage of larvae with abnormalities was 1.5- ...

Response of eelgrass Zostera marina to CO2 enrichment: Possible impacts of climate change and potential for remediation of coastal habitats

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

When eelgrass was grown for a year under ocean acidification conditions in outdoor aquaria, they had greater reproductive output, below-ground biomass, and proliferation of new shoots. The findings suggest that ocean acidification will increase the productivity of seagrass meadows. (Laboratory study)

Extracellular acid–base regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Experiments with deep-sea and shallow-water crab species from the U.S. west coast indicated that deep-sea animals, which are adapted to a stable environment and have reduced metabolic rates, lack the short-term acid–base regulatory capacity to cope with the sudden, large increases in carbon dioxide that would occur if carbon dioxide ...

Tolerance of juvenile barnacles (Amphibalanus improvisus) to warming and elevated pCO2

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

The Kiel Fjord (Baltic Sea) has large natural variations in carbon dioxide levels. When barnacles from the fjord were raised for 8-12 weeks in warmer seawater under ocean acidification conditions, their growth and condition did not change significantly. Warming increased the shell strength, but ocean acidification conditions had only weak ...

Reduced calcification of marine plankton in response to increased atmospheric CO2

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Two dominant marine calcifying phytoplankton species, the coccolithophorids Emiliania huxleyi and Gephyrocapsa oceanica, produced less calcite under ocean acidification conditions. They also had more deformities and higher rates of incomplete development. The findings suggest that ocean acidification could slow down the production of calcium carbonate in the ocean. (Laboratory study) ...

Skeletal mineralogy in a high-CO2 world

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

This study investigated changes in mineralization in 18 species of marine calcifiers, which were reared for 60 days in different levels of ocean acidification conditions. The results suggest that shell/skeletal mineralogy within some—but not all—marine calcifiers will change as carbon dioxide levels continue rising as a result of fossil fuel ...

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