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    Home » CO2 / pCO2 » Page 11

    CO2 / pCO2

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    Coral Reefs Under Rapid Climate Change and Ocean Acidification

    Under conditions expected in the 21st century, global warming and ocean acidification will cause corals to become increasingly rare on reef systems. This review presents future [...]

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    Competition between calcifying and noncalcifying temperate marine macroalgae under elevated CO2 levels

    When grown under ocean acidification conditions, a non-calcifying seaweed (Chondrus crispus) grew to cover more area, while a calcifying alga (Corallina officinalis) decreased in the area it [...]

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    Elevated CO2 levels affect the activity of nitrate reductase and carbonic anhydrase in the calcifying rhodophyte Corallina officinalis

    A coralline alga took up and used carbon and nutrients differently when living under ocean acidification conditions for 12 weeks, and the changes affected its ability to compete with [...]

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    Physiological responses of the calcifying rhodophyte, Corallina officinalis (L.) to future CO2 levels

    Growth and photosynthetic efficiency of a coralline alga decreased under high CO2 levels. These changes could affect the alga’s ability to compete with other macroalgae (seaweeds). [...]

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    Calcification in the articulated coralline alga Corallina pilulifera, with special reference to the effect of elevated CO2 concentration

    A coralline alga had reduced calcification in ocean acidification conditions. (Laboratory study)

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    Relationship of CO2 concentrations to photosynthesis of intertidal macroalgae during emersion

    When they were exposed to air at low tide, photosynthesis by three species of intertidal seaweeds was not saturated at present-day levels of atmospheric carbon dioxide (CO2). They may benefit, [...]

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    Gene expression profiling in gills of the great spider crab Hyas araneus in response to ocean acidification and warming

    The Arctic spider crab (Hyas araneus) appears to have a threshold of ocean acidification beyond which it fails to acclimate. In a 10-week experiment, it had a limited ability to adjust to effects [...]

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    Acclimation conditions modify physiological response of the diatom Thalassiosira pseudonana to elevated CO2 concentrations in a nitrate-limited chemostat

    A species of phytoplankton changed how it used carbon and energy when it was exposed to higher CO2 levels. The effects differed depending on whether the CO2 level change happened over 15-16 [...]

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    Ocean acidification leads to counterproductive intestinal base loss in the gulf toadfish (Opsanus beta).

    When the Gulf toadfish was exposed to levels of ocean acidification that are projected to occur by 2300, it lost greater amounts of bicarbonate ions through its intestine. (Laboratory study)

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    Short-term acute hypercapnia affects cellular responses to trace metals in the hard clams Mercenaria mercenaria

    Experiments with quahogs exposed to trace metal pollutants under ocean acidification conditions revealed complex interactions and indicated that variations in environmental CO2 may modulate the [...]

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