Estimation of Micro-zooplankton (MZ) Abundance and Biomass (B55)
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Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: Stoecker, Diane
- Publication_Date: Unpublished material
- Title:
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Estimation of Micro-zooplankton (MZ) Abundance and Biomass (B55)
- Geospatial_Data_Presentation_Form: spreadsheet
- Description:
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- Abstract:
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This project addresses the BSIERP hypothesis that "Climate-induced changes in physical forcing will modify the availability and partitioning of food for all trophic levels through bottom-up processes". MZ are responsible for most of the grazing on phytoplankton in the sea and are an important link in the food chain between phytoplankton and zooplankton, which are food for zooplanktivorous fish which support top predators. The project contributes to the goals of BSIERP by providing summer data on standing stocks of MZ and their grazing activities. A key goal is to determine how the MZ link in Bering Sea food webs is influenced by climate-induced changes in physical forcing.
- Purpose: Unspecified
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20080703
- Ending_Date: 20080731
- Currentness_Reference: ground condition
- Status:
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- Progress: In work
- Maintenance_and_Update_Frequency: Unspecified
- Spatial_Domain:
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- Description_of_Geographic_Extent: Eastern Bering Sea
- Bounding_Coordinates:
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- West_Bounding_Coordinate: -179.39
- East_Bounding_Coordinate: -163.14
- North_Bounding_Coordinate: 62.2
- South_Bounding_Coordinate: 54.31
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: IOOS Core Variables
- Theme_Keyword: Version 1
- Theme_Keyword: Zooplankton abundance
- Theme_Keyword: Zooplankton species
- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: project_number:B55
- Theme_Keyword: data_url:<http://data.eol.ucar.edu/codiac/dss/id=245.B55-001>
- Theme_Keyword: archive_url:<http://www.eol.ucar.edu/projects/bsierp>
- Access_Constraints:
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Access is restricted. Data policy: <http://www.eol.ucar.edu/projects/best/program_management_plan.pdf>
- Use_Constraints:
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Use is restricted. Data policy: <http://www.eol.ucar.edu/projects/best/program_management_plan.pdf>
- Data_Quality_Information:
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- Logical_Consistency_Report: Unspecified
- Completeness_Report: Unspecified
- Lineage:
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- Methodology:
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- Methodology_Type: Field
- Methodology_Description:
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Water samples were obtained using 30 l Niskin bottles. Duplicate samples (250 ml) for MZ were preserved with 10% (final concentration) acid Lugol’s solution in amber glass bottles.
- Methodology:
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- Methodology_Type: Lab
- Methodology_Description:
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MZ samples were returned to Horn Point Laboratory for enumeration of > 20 μm MZ (> ~15 μm when fixed with acid Lugol’s) using settling slides and a Nikon Eclipse TE 2000-U inverted microscope. In our data sheets an “0” indicates <40 cells/liter. A SPOT v 4.0 RT camera and SPOT diagnostic software were used to record images and to measure cells. In accordance with earlier MZ studies in the Bering Sea, ciliates smaller than 20 μm and mixotrophic dinoflagellates as well heterotrophic dinoflagellates were enumerated. Onboard, we examined “fresh” samples, either live or fixed with 1% glutaraldehyde with transmitted light and epifluorescence microscopy to look for the presence or absence of plastids. Our notes from the cruise facilitated in determination of which ciliates and dinoflagellates were photosynthetic (had chlorophyll fluorescence) and which were strictly heterotrophic (no chlorophyll fluorescence except associated with algae in food vacuoles). Separate data sheets are presented for ciliates, dinoflagellates and “other” microzooplankton
- Process_Step:
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- Process_Description:
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Skeleton metadata record created. New filename: B55_Stoecker_uZoop_Abundance.xml
- Process_Date: 20091028
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: National Center for Atmospheric Research
- Contact_Person: Earth Observing Laboratory
- Contact_Address:
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- Address_Type: mailing and physical
- Address: 3450 Mitchell Lane
- City: Boulder
- State_or_Province: CO
- Postal_Code: 80301
- Country: USA
- Contact_Voice_Telephone: 303-497-8154
- Contact_Electronic_Mail_Address: codiac@ucar.edu
- Contact_Electronic_Mail_Address: stott@ucar.edu
- Distribution_Liability:
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No warranty expressed or implied is made regarding the accuracy or utility of the data, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with the data. The NCAR and NPRB shall not be held liable for improper or incorrect use of the data described and/or contained herein.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: XLS
- File_Decompression_Technique: No compression applied
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name: <http://beringsea.eol.ucar.edu>
- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: ASCII
- File_Decompression_Technique: No compression applied
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name: <http://beringsea.eol.ucar.edu>
- Fees: None
- Metadata_Reference_Information:
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- Metadata_Date: 20091028
- Metadata_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: National Center for Atmospheric Research
- Contact_Person: Earth Observing Laboratory
- Contact_Address:
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- Address_Type: mailing and physical
- Address: 3450 Mitchell Lane
- City: Boulder
- State_or_Province: CO
- Postal_Code: 80301
- Country: USA
- Contact_Voice_Telephone: 303-497-8154
- Contact_Electronic_Mail_Address: codiac@ucar.edu
- Contact_Electronic_Mail_Address: stott@ucar.edu
- Metadata_Standard_Name:
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FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001.1-1999
This page is <http://www.eol.ucar.edu/projects/bsierp/docs/B55_Stoecker_uZoop_Abundance.html>
Generated by mp version 2.9.23 on Mon Mar 24 15:58:54 2014