Search results for "Station label"

showing 4 items of 4 documents

Calcifying phytoplankton standing stocks in the North Pacific from the R/V Kilo Moana cruise KM1712

2022

This dataset compiles the CaCO3 standing stocks of living coccolithophores (mg/m³), of detached coccoliths (mg/m³) and the integrated CaCO3 standing stocks of coccolithophores (mg/m²). The samples were collected in the North Pacific between Hawaii and the Gulf of Alaska during the R/V Kilo Moana cruise KM1712 in August 2017, with rosette Niskin bottles equiped with CTD (Sea-Bird SBE 9) at different depths throughout the photic zone including the deep chlorophyll maximum. To estimate the CaCO3 contribution by coccolithophore assemblages in each sample, we carried out the transformation of coccospheres in number of coccoliths, following the estimates by Yang and Wei (2003), and then we adopte…

Carbonate productionLongitude of eventCoccosphaerales calcium carbonate per area standard deviationwaterRV Kilo MoanaCTD/RosetteLatitude of eventBottle numberKM1712Coccosphaerales calcium carbonate per areaDate/Time of eventCalculatedCoccolithophorespteropodsNorth Pacificcalcium carbonate per volumeDEPTH waterEvent labelDate Time of eventforaminiferaCTD Rosettecalcium carbonate per areaCoccosphaeralesDEPTHStanding stocksEarth System ResearchHeteropodsCoccosphaerales calcium carbonate per volumestandard deviationStation label
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Integrated annual calcium carbonate production of planktic calcifiers in the North Pacific from the R/V Kilo Moana cruise KM1712

2022

This dataset compiles the estimates of annual CaCO3 production, including the upper and lower limits of the estimates, for the 4 planktic calcifying groups considered in the study, the pteropods (mg/m²/yr), the heteropods (mg/m²/yr), the foraminifers (mg/m²/yr) and the coccolithophores (mg/m²/yr). The estimates derived from the living standing stocks of these 4 groups of organisms collected in the North Pacific between Hawaii and the Gulf of Alaska during the R/V Kilo Moana cruise KM1712 in August 2017. R code was used to calculate the integrated annual CaCO3 production for the different organisms, including the upper and lower limits (Gray, 2022).

Carbonate productionLongitude of eventwaterRV Kilo MoanaPteropoda calcium carbonate production per areaForaminiferaPteropoda Pterotracheoidea aragonite production per areaPterotracheoideaForaminifera calcium carbonate production per areaLatitude of eventPlankton netKM1712Date/Time of eventCalculatedCoccolithophoresCoccosphaerales calcium carbonate production per areacalcium carbonate production per areapteropodsNorth PacificPterotracheoidea calcium carbonate production per areaPteropodaDEPTH waterPlanktonic calcite + aragonite production per areaEvent labelDate Time of eventPteropoda + Pterotracheoidea aragonite production per areaPlanktonic calcite aragonite production per areaCoccosphaeralesDEPTHForaminifera Coccosphaerales calcite production per areaStanding stocksEarth System ResearchHeteropodsStation labelForaminifera + Coccosphaerales calcite production per area
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Could the acid-base status of Antarctic sea urchins indicate a better-than-expected resilience to near-future ocean acidification?

2015

Increasing atmospheric carbon dioxide concentration alters the chemistry of the oceans towards more acidic conditions. Polar oceans are particularly affected due to their low temperature, low carbonate content and mixing patterns, for instance upwellings. Calcifying organisms are expected to be highly impacted by the decrease in the oceans' pH and carbonate ions concentration. In particular, sea urchins, members of the phylum Echinodermata, are hypothesized to be at risk due to their high-magnesium calcite skeleton. However, tolerance to ocean acidification in metazoans is first linked to acid-base regulation capacities of the extracellular fluids. No information on this is available to dat…

Ocean Acidification International Coordination Centre (OA-ICC)SalinityNotocidaris gaussensisBicarbonate ion standard deviationinorganicAlkalinity total standard deviationAlkalinityCoulometric titrationExperimentCarbon inorganic dissolvedTemperature waterSizeCoelomic fluidCalculated using seacarb after Nisumaa et al 2010CalculatedAragonite saturation stateCtenocidaris giganteaAlkalinity totaltotalAmphipneustes loriolipHTemperaturedissolvedAcid base regulationCarbonate ionPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)Carbon dioxide standard deviationSterechinus neumayeriEarth System ResearchAporocidaris eltanianaδ13Cstandard deviationField observationPolarStation labelEchinodermataPotentiometric titrationCalcite saturation stateCoelomic fluid alkalinityPotentiometricwaterPartial pressure of carbon dioxideAmphipneustes similisAragonite saturation state standard deviationBenthosDATE TIMEOcean Acidification International Coordination Centre OA ICCSterechinus antarcticusAnimaliaCalcite saturation state standard deviationBicarbonate ionLONGITUDECalculated using seacarb after Nisumaa et al. (2010)SpeciesCalculated using CO2SYScarbonEvent labelPartial pressure of carbon dioxide standard deviationCoelomic fluid carbon inorganic dissolvedCarbonate system computation flagAcid-base regulationpH standard deviationCarbonate ion standard deviationFugacity of carbon dioxide (water) at sea surface temperature (wet air)Amphipneustes rostratusPartial pressure of carbon dioxide water at sea surface temperature wet airDATE/TIMECarbon dioxideDifferenceSingle speciesCoelomic fluid pHLATITUDEFugacity of carbon dioxide water at sea surface temperature wet airAntarcticBenthic animalsCoast and continental shelfAbatus cavernosus
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Calcifying zooplankton standing stocks and in the North Pacific from the R/V Kilo Moana cruise KM1712

2022

This dataset compiles the standing stocks (ind/m³), the integrated standing stocks (ind/m²) and the integrated CaCO3 standing stocks (mg/m²) for three groups of zooplanktonic calcifying organisms: pteropods, heteropods and foraminifers. The organisms were collected by oblique towing (Ø 0.5 m, 90 μm mesh size, SeaGear mechanical flowmeter) in the North Pacific between Hawaii and the Gulf of Alaska during the R/V Kilo Moana cruise KM1712 in August 2017. The sampling strategy was designed to capture an integrated sample of all foraminifers, pteropods and heteropods from juveniles to adults living throughout the upper water column. Pteropods and heteropods were quantified and shell diameter mea…

Pteropoda standard deviationDate Time of event 2RV Kilo MoanaForaminiferaLight microscopeLatitude of eventDate/Time of event 2Foraminifera calcium carbonate per areaPlankton netKM1712CalculatedpteropodsNorth PacificForaminifera standard deviationLeicaWater volumeStanding stocksEarth System Researchstandard deviationMechanical flowmeter SeaGearMechanical flowmeterSeaGearStation labelPteropoda calcium carbonate per areaZ16 AP0Carbonate productionLongitude of eventPterotracheoidea calcium carbonate per areawaterPterotracheoideaDate Time localfilteredDate/Time of eventCoccolithophoresPteropodaPteropoda calcium carbonate per area standard deviationPterotracheoidea standard deviationDEPTH waterLongitude of event 2Date/Time localEvent labelDate Time of eventWater volume filteredPterotracheoidea calcium carbonate per area standard deviationcalcium carbonate per areaLatitude of event 2Foraminifera calcium carbonate per area standard deviationDEPTHLight microscope Leica Z16 AP0Heteropods
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