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Limacina helicina shell dissolution due to ocean acidification in the California Current Ecosystem from 2011-08-11 to 2013-08-29 (NCEI Accession 0155173)


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      DateTime:  2024-02-08T23:55:25Z
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            title:  Limacina helicina shell dissolution due to ocean acidification in the California Current Ecosystem from 2011-08-11 to 2013-08-29 (NCEI Accession 0155173)
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                date:  2016-07-28
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                  Anchor:  DOI 10.7289/v5rn35z7
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                  Anchor:  NCEI Accession ID 0155173
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 NOAA National Centers for Environmental Information
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/4875 Nina Bednaršek
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        abstract:  Pteropod shell dissolution was determined on shells collected from 16 stations for the 2011 cruise and 20 stations during the 2013 cruise. The samples were stored in 90% buffered ethanol. Between 15 to 30 pteropods of Limacina helicina were picked from samples selected randomly. Following the methods described in Bednarsek et al. (2012), shells were repeatedly washed with distilled water before being subjected to chemical shell dehydration, followed by a plasma etching procedure for periostracum removal. All treated shells were analyzed for shell dissolution using a scanning electron microscope (SEM) and identified for the presence of dissolution patterns and the type of more severe types of shell dissolution (Type II and Type III). Following the categorization scheme outlined in Bednarsek et al. (2012), Type II dissolution indicates deeper penetrating dissolution that precedes Type III, which affects large parts of shell crystalline structure, making shells less compact and more fragile. The data files show the percentage of individuals with Type II or Type III shell dissolution in relation to integrated omega saturation state in the upper100 m for each sampled station. For 2011, we also have data on the abundance of pteropods (ind m-2) in relation to integrated omega saturation state.
        purpose:  To determine to what extent corrosive waters along the US West Coast are already impacting pteropod shell dissolution in the natural environment
        credit:  Funding Information: NOAA Ocean Acidification Program (Ocean Acidification Monitoring Network: West Coast Hydrographic Cruise, OAPFY13.03.PMEL.003)
        credit:  Funding Information: NOAA's Ocean Acidification Program (Pteropod vulnerability to OA along the US West Coast)
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        supplementalInformation:  PRINCIPAL INVESTIGATORS: Nina Bednarsek {NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA, 98115, USA} Richard A Feely {NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA, 98115, USA} EXPOCODE: 32WC20110812, 317W20130803 CRUISE ID: WCOA2011, WCOA2013
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                    linkage: ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0093/0155173/
                    protocol:  FTP
                    applicationProfile:  Any FTP client
                    name:  FTP
                    description:  These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
                    function:  (CI_OnLineFunctionCode) download
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0155173 v1.1 was published.
                dateTime:
                  DateTime:  2016-07-28T20:15:08Z
                output:  (LE_Source)
                    sourceCitation:  (CI_Citation)
                        title:  NCEI Accession 0155173 v1.1
                        date:  (CI_Date)
                            date: (inapplicable)
                            dateType:  (CI_DateTypeCode) publication
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            individualName: (inapplicable)
                            contactInfo:  (CI_Contact)
                                onlineResource:  (CI_OnlineResource)
                                    linkage: https://www.ncei.noaa.gov/archive/accession/0155173/1.1
                                    protocol:  HTTPS
                                    name:  NCEI Accession 0155173 v1.1
                                    description:  published 2016-07-28T20:15:08Z
                                    function:  (CI_OnLineFunctionCode) download
                            role: (inapplicable)
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Unit: umol/kg; Observation type: Profile; In-situ / Manipulation / Response variable: In-situ; Measured or calculated: Measured; Sampling instrument: CTD; Detailed sampling and analyzing information: Data available at: WCOA2011: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/data/0123467/ WCOA2013 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/data/0132082/; Researcher name: Feely et al.; Researcher institution: NOAA PMEL.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Total alkalinity; Abbreviation: TA; Unit: umol/kg; Observation type: Profile; In-situ / Manipulation / Response variable: In-situ; Measured or calculated: Measured; Analyzing instrument: Alkalinity titrator; Cell type (open or closed): Open; Detailed sampling and analyzing information: Data available at: WCOA2011: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/data/0123467/ WCOA2013 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/data/0132082/; Preservation method: None; Preservative volume: None; Preservative correction: no correction.; Researcher name: Feely et al.; Researcher institution: NOAA PMEL.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: pH; Abbreviation: pH from natura environment; pH scale: Total; Observation type: Profile; In-situ / Manipulation / Response variable: In-situ; Measured or calculated: Measured; Temperature of pH measurement: 20 C; Detailed sampling and analyzing information: Data available at: WCOA2011: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/data/0123467/ WCOA2013 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/data/0132082/; Standardization description: none; Researcher name: Feely et al.; Researcher institution: NOAA PMEL.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Abundance of pteropods over the 100 m integrated water column (for the year of 2011); Abbreviation: Depth integrated abundance (ind m-2); Unit: ind m-2; Observation type: Biological survey; In-situ / Manipulation / Response variable: In situ observation; Measured or calculated: Abundance of pteropods over the 100 m integrated water column; Calculation method and parameters: # of individuls couunted and multiplied by 100 to get th abundance ind m-2; Sampling instrument: Bongo nets with 333 um mesh sizet; Analyzing instrument: Under the light microscope with the use of zooplankton splitter; Detailed sampling and analyzing information: This decribes the coolaction of animals as well as how the abundances were derived; Method reference: pteropods were stored in 90% buffered formalin (2011) and 90% buffered ethanol (2013); Biological subject: Pteropod species; Species ID: Limacina helicina; Researcher name: Nina Bednarsek; Researcher institution: NOAA PMEL.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Percent of individuals affected by sever type of dissolution (Type II and Type III) (for both years 2011 and 2013); Abbreviation: type II and III damage (%); Unit: % individuals affected with dissolution; Observation type: Biological survey; In-situ / Manipulation / Response variable: In-situ; Measured or calculated: Measured; Calculation method and parameters: 10-15 animals were randomly analysed from the whole sample for the presence/absence of dissolution and the type of damage present. Preparation method of the shell followed Bednarsek et al (2012). The organic material was removed before examining the shellls under SEM. Under SEM, the whole shell was examined and % individuals with present Type II and Type III dissolution is reported, also combined with integrated omega saturation state in the upper 100 m.; Analyzing instrument: Scanning electron microscope; Biological subject: Pteropod; Species ID: Limacina helicina; Researcher name: Nina Bednarsek; Researcher institution: NOAA PMEL.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Integrated aragonite saturation state over 100 m (for both years 2011 and 2013); Abbreviation: average saturation state over 100m; Observation type: Biological survey; In-situ / Manipulation / Response variable: In situ observation; Measured or calculated: Calculated; Calculation method and parameters: omega saturation state was derived at each depth over 100 m separately and was subsequenty integrated over 100 m.; Researcher name: Nina Bednarsek; Researcher institution: NOAA PMEL .
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
        contact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            role:  (CI_RoleCode) custodian
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  microscope
            type:  microscope
            description:  instrument is used in lab analyses A microscope is an instrument used to see objects that are too small for the naked eye.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  Niskin bottle
            type:  Niskin bottle
            description:  Device for obtaining samples of seawater at a specific depth Why special entry for Niskin bottle but no entry for Nansen bottle?