Search results for "Sodium Calcium ratio"

showing 2 items of 2 documents

Sodium provides unique insights into transgenerational effects of ocean acidification on bivalve shell formation

2016

Ocean acidification is likely to have profound impacts on marine bivalves, especially on their early life stages. Therefore, it is imperative to know whether and to what extent bivalves will be able to acclimate or adapt to an acidifying ocean over multiple generations. Here, we show that reduced seawater pH projected for the end of this century (i.e., pH 7.7) led to a significant decrease of shell production of newly settled juvenile Manila clams, Ruditapes philippinarum. However, juveniles from parents exposed to low pH grew significantly faster than those from parents grown at ambient pH, exhibiting a rapid transgenerational acclimation to an acidic environment. The sodium composition of…

Ocean Acidification International Coordination Centre (OA-ICC)Registration number of speciesSalinityTemperateinorganicAlkalinitySodium/Calcium ratioExperimentTemperature waterCarbon inorganic dissolvedRuditapes philippinarumCalculated using seacarb after Nisumaa et al 2010Aragonite saturation stateNorth PacificAlkalinity totalSalinity standard errortotalSodium Calcium ratiopHTemperaturePartial pressure of carbon dioxide (water) at sea surface temperature (wet air) standard errordissolvedAcid base regulationCarbonate ionLaboratory experimentPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)standard errorContainers and aquaria 20 1000 L or 1 m 2Earth System ResearchContainers and aquaria (20-1000 L or < 1 m**2)Uniform resource locator link to referenceCalcite saturation statewaterGrowth MorphologyContainers and aquaria (20-1000 L or < 1 m**2)Alkalinity total standard errorBenthosUniform resource locator/link to referenceOcean Acidification International Coordination Centre OA ICCAnimaliaBicarbonate ionTypeTemperature water standard errorCalculated using seacarb after Nisumaa et al. (2010)SpeciespH standard errorGrowth rateCarbonate system computation flagAcid-base regulationFugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonTreatmentAragonite saturation state standard errorPartial pressure of carbon dioxide water at sea surface temperature wet airCarbon dioxideSample IDMolluscaGrowth/MorphologySingle speciesBenthic animalsFugacity of carbon dioxide water at sea surface temperature wet airCoast and continental shelf

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Insights fromsodium into the impacts of elevated pCO2 and temperature on bivalve shell formation

2017

Ocean acidification and warming are predicted to affect the ability of marine bivalves to build their shells, but little is known about the underlying mechanisms. Shell formation is an extremely complex process requiring a detailed understanding of biomineralization processes. Sodium incorporation into the shells would increase if bivalves rely on the exchange of Na+/H+ to maintain homeostasis for shell formation, thereby shedding new light on the acid-base and ionic regulation at the calcifying front. Here, we investigated the combined effects of seawater pH (8.1, 7.7 and 7.4) and temperature (16 and 22 °C) on the growth and sodium composition of the shells of the blue mussel, Mytilus edul…

Ocean Acidification International Coordination Centre (OA-ICC)Registration number of speciesSalinityTemperateMytilus edulisinorganicAlkalinityGrowth rate standard deviationSodium/Calcium ratioExperimentPatinopecten yessoensisTemperature waterCarbon inorganic dissolvedCalculated using seacarb after Nisumaa et al 2010Aragonite saturation stateNorth PacificAlkalinity totalSalinity standard errortotalSodium Calcium ratiopHTemperaturePartial pressure of carbon dioxide (water) at sea surface temperature (wet air) standard errordissolvedCarbonate ionLaboratory experimentPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)standard errorContainers and aquaria 20 1000 L or 1 m 2Earth System ResearchContainers and aquaria (20-1000 L or < 1 m**2)standard deviationUniform resource locator link to referenceCalcification/DissolutionPotentiometric titrationCalcite saturation statewaterGrowth MorphologyContainers and aquaria (20-1000 L or < 1 m**2)Alkalinity total standard errorBenthosUniform resource locator/link to referenceOcean Acidification International Coordination Centre OA ICCAnimaliaBicarbonate ionTypeTemperature water standard errorCalculated using seacarb after Nisumaa et al. (2010)SpeciespH standard errorGrowth rateCalculated using CO2SYSEvent labelCarbonate system computation flagFugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonTreatmentPartial pressure of carbon dioxide water at sea surface temperature wet airCarbon dioxideMolluscaGrowth/MorphologySingle speciesCalcification DissolutionBenthic animalsFugacity of carbon dioxide water at sea surface temperature wet airCoast and continental shelf

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