Search results for "Other studied parameter or process"

showing 3 items of 3 documents

Seawater carbonate chemistry and shell mineralogy, microstructure, and mechanical strength of four Mediterranean gastropod species near a CO2 seep

2017

Marine CO2 seeps allow the study of the long-term effects of elevated pCO2 (ocean acidification) on marine invertebrate biomineralization. We investigated the effects of ocean acidification on shell composition and structure in four ecologically important species of Mediterranean gastropods (two limpets, a top-shell snail, and a whelk). Individuals were sampled from three sites near a volcanic CO2 seep off Vulcano Island, Italy. The three sites represented ambient (8.15 pH), moderate (8.03 pH) and low (7.73 pH) seawater mean pH. Shell mineralogy, microstructure, and mechanical strength were examined in all four species. We found that the calcite/aragonite ratio could vary and increased sign…

Ocean Acidification International Coordination Centre (OA-ICC)IdentificationRegistration number of speciesSalinityTemperateinorganicAlkalinityExperimentTemperature waterCarbon inorganic dissolvedCalculated using seacarb after Nisumaa et al 2010Aragonite saturation stateAlkalinity totalSalinity standard errorPatella caeruleatotalCO2 ventpHCalciteTemperaturePartial pressure of carbon dioxide (water) at sea surface temperature (wet air) standard errordissolvedCarbonate ionPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)standard errorEarth System ResearchField observationUniform resource locator link to referencePotentiometric titrationCalcite saturation stateLengthLocationPotentiometricwaterGrowth MorphologyHexaplex trunculusAlkalinity total standard errorBenthosUniform resource locator/link to referenceOsilinus turbinatusOther studied parameter or processMediterranean SeaOcean Acidification International Coordination Centre OA ICCAnimaliaBicarbonate ionTypeTemperature water standard errorCalculated using seacarb after Nisumaa et al. (2010)ForceSpeciespH standard errorCalculated using CO2SYSCarbonate system computation flagFugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonElasticityTreatmentAragonite saturation state standard errorPartial pressure of carbon dioxide water at sea surface temperature wet airAragoniteCarbon dioxideMolluscaGrowth/MorphologySingle speciesBenthic animalsFugacity of carbon dioxide water at sea surface temperature wet airPatella rusticaToughnessCoast and continental shelf

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The impact of ocean acidification and warming on the skeletal mechanical properties of the sea urchin Paracentrotus lividus from laboratory and field…

2016

Increased atmospheric CO2 concentration is leading to changes in the carbonate chemistry and the temperature of the ocean. The impact of these processes on marine organisms will depend on their ability to cope with those changes, particularly the maintenance of calcium carbonate structures. Both a laboratory experiment (long-term exposure to decreased pH and increased temperature) and collections of individuals from natural environments characterized by low pH levels (individuals from intertidal pools and around a CO2 seep) were here coupled to comprehensively study the impact of near-future conditions of pH and temperature on the mechanical properties of the skeleton of the euechinoid sea …

Ocean Acidification International Coordination Centre (OA-ICC)IdentificationSalinityTemperateinorganicAlkalinityAreaExperimentTemperature waterCarbon inorganic dissolvedCalculated using seacarb after Nisumaa et al 2010Aragonite saturation stateMesocosm or benthocosmAlkalinity totaltotalYoung s moduluspHNorth AtlanticTemperatureProportiondissolvedCarbonate ionLaboratory experimentPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)Earth System ResearchField observationThicknessEchinodermataCalcite saturation stateLengthwaterYoung's modulusGrowth MorphologyBenthosReplicateDiameterHardnessOther studied parameter or processOcean Acidification International Coordination Centre OA ICCAnimaliaBicarbonate ionCalculated using seacarb after Nisumaa et al. (2010)ForceSpeciesHeightTest setCarbonate 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 dioxideParacentrotus lividusGrowth/MorphologySingle speciesBenthic animalsFugacity of carbon dioxide water at sea surface temperature wet airCoast and continental shelfSecond moment of area

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Seawater carbonate chemistry and growth, physiological performance of the Manila clam Ruditapes philippinarum

2018

Ocean acidification may interfere with the calcifying physiology of marine bivalves. Therefore, understanding their capacity for acclimation and adaption to low pH over multiple generations is crucial to make predictions about the fate of this economically and ecologically important fauna in an acidifying ocean. Transgenerational exposure to an acidification scenario projected by the end of the century (i.e., pH 7.7) has been shown to confer resilience to juvenile offspring of the Manila clam, Ruditapes philippinarum. However, whether, and to what extent, this resilience can persist into adulthood are unknown and the mechanisms driving transgenerational acclimation remain poorly understood.…

Ocean Acidification International Coordination Centre (OA-ICC)TemperateRegistration number of speciesCondition indexSalinityBicarbonate ion standard deviationinorganicAlkalinity total standard deviationAlkalinityCalculated using seacarb after Orr et al. (2018)Growth rate standard deviationFugacity of carbon dioxide in seawater standard deviationExperimentTemperature waterCarbon inorganic dissolvedRuditapes philippinarumCalculated using seacarb after Nisumaa et al 2010PercentageAragonite saturation stateNorth PacificAlkalinity totalδ13C dissolved inorganic carbon standard deviationtotalpHRespirationTemperaturedissolvedLaboratory experimentCarbonate ionPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)Carbon dioxide standard deviationTemperature water standard deviationContainers and aquaria 20 1000 L or 1 m 2δ13C dissolved inorganic carbonEarth System Researchδ13CContainers and aquaria (20-1000 L or < 1 m**2)Metabolic rate of oxygen standard deviationstandard deviationUniform resource locator link to referenceCalcite saturation stateFugacity of carbon dioxide in seawaterwaterPartial pressure of carbon dioxideGrowth MorphologyContainers and aquaria (20-1000 L or < 1 m**2)Aragonite saturation state standard deviationBenthosUniform resource locator/link to referenceOther studied parameter or processSalinity standard deviationOcean Acidification International Coordination Centre OA ICCAnimaliaCarbon inorganic dissolved standard deviationCalcite saturation state standard deviationTypeBicarbonate ionCalculated using seacarb after Nisumaa et al. (2010)SpeciesGrowth rateCondition index standard deviationPartial pressure of carbon dioxide standard deviationMetabolic rate of oxygenCarbonate system computation flagpH standard deviationCarbonate ion standard deviationdissolved inorganic carbonCalculated using seacarb after Orr et al 2018Fugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonTreatmentPartial pressure of carbon dioxide water at sea surface temperature wet airCarbon dioxideMolluscaGrowth/MorphologySingle speciesFugacity of carbon dioxide water at sea surface temperature wet airBenthic animalsδ13C standard deviationCoast and continental shelf

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