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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)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 06, 2026 at 01:53 AM | Dataset Last Updated: July 28, 2016 at 12:00 AM
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.

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0155173 ARAGONITE SATURATION STATE species abundance microscope Niskin bottle survey - biological NOAA Pacific Marine Environmental Laboratory NOAA Pacific Marine Environmental Laboratory

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description 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.
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0155173.xml
issued 2016-06-29T00:00:00.000+00:00
keyword 
                                            [
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  "ARAGONITE SATURATION STATE",
  "species abundance",
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  "survey - biological",
  "NOAA Pacific Marine Environmental Laboratory",
  "NOAA Pacific Marine Environmental Laboratory",
  "NODC Ocean Acidification Scientific Data Stewardship (OADS)",
  "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)",
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  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "West Coast Ocean Acidification Cruise (WCOA)",
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  "Biological survey",
  "Abundance of pteropods over the 100 m integrated water column",
  "Bongo nets",
  "Integrated aragonite saturation state over 100 m",
  "Limacina helicina",
  "Percent of individuals affected by sever type of dissolution (Type II and Type III)",
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  "pteropods",
  "scanning electron microscope",
  "zooplankton splitter",
  "DIC",
  "Depth integrated abundance (ind m-2)",
  "TA",
  "average saturation state over 100m",
  "pH from natura environment",
  "type II and III damage (%)",
  "MICROSCOPES > MICROSCOPES",
  "NISKIN BOTTLES",
  "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
  "California Current System",
  "Columbia River",
  "US West Coast"
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license https://creativecommons.org/publicdomain/zero/1.0/
modified 2016-07-28T00:00:00.000+00:00
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rights otherRestrictions
spatial -117.755,33.488,-126.24,48.53
temporal 2011-08-11T00:00:00+00:00/2013-08-29T00:00:00+00:00
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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