Estimation of Micro-zooplankton (MZ) Abundance and Biomass (B55)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Stoecker, Diane
Publication_Date: Unpublished material
Title:
Estimation of Micro-zooplankton (MZ) Abundance and Biomass (B55)
Geospatial_Data_Presentation_Form: spreadsheet
Description:
Abstract:
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:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20080703
Ending_Date: 20080731
Currentness_Reference: ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: Unspecified
Spatial_Domain:
Description_of_Geographic_Extent: Eastern Bering Sea
Bounding_Coordinates:
West_Bounding_Coordinate: -179.39
East_Bounding_Coordinate: -163.14
North_Bounding_Coordinate: 62.2
South_Bounding_Coordinate: 54.31
Keywords:
Theme:
Theme_Keyword_Thesaurus: IOOS Core Variables
Theme_Keyword: Version 1
Theme_Keyword: Zooplankton abundance
Theme_Keyword: Zooplankton species
Theme:
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:
Access is restricted. Data policy: <http://www.eol.ucar.edu/projects/best/program_management_plan.pdf>
Use_Constraints:
Use is restricted. Data policy: <http://www.eol.ucar.edu/projects/best/program_management_plan.pdf>

Data_Quality_Information:
Logical_Consistency_Report: Unspecified
Completeness_Report: Unspecified
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
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:
Methodology_Type: Lab
Methodology_Description:
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:
Process_Description:
Skeleton metadata record created. New filename: B55_Stoecker_uZoop_Abundance.xml
Process_Date: 20091028

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: National Center for Atmospheric Research
Contact_Person: Earth Observing Laboratory
Contact_Address:
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:
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:
Digital_Form:
Digital_Transfer_Information:
Format_Name: XLS
File_Decompression_Technique: No compression applied
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://beringsea.eol.ucar.edu>
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII
File_Decompression_Technique: No compression applied
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://beringsea.eol.ucar.edu>
Fees: None

Metadata_Reference_Information:
Metadata_Date: 20091028
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: National Center for Atmospheric Research
Contact_Person: Earth Observing Laboratory
Contact_Address:
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:
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>
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