Portal Home
  [  Return to Record   ]

The biomass, productivity, physiology and grazing pressures of phytoplankton during the polar winter in the Ross Sea region

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: The biomass, productivity, physiology and grazing pressures of phytoplankton during the polar winter in the Ross Sea region
Description:
Abstract:
What happens to primary production during the long polar night was investigated in the Ross Sea region. Phytoplankton samples were obtained from the water column at Cape Armitage and Cape Evans. Phytoplankton chlorophyll biomass was assessed by standard fluorometric methods using filtered samples. The photosynthesis rate (productivity) and photophysiology of phytoplankton was measured using Water PAM and Microscope PAM to determine maximum quantum yield of fluorescence, the photoadaptive index (Ek), relative electron transfer rate (reIETRmas) and photosynthetic efficiency on cells of common species. This was used to determine which taxa are the most physiological active and which are more able to adapt to the low light conditions of winter. The allocation of photosynthate into protein, polysaccaride, lipid and low molecular weight metabolites in naturally occurring phytoplankton and sea ice algae communities was examined. Phytoplankton growth rate and grazing rates were determined by measuring chlorophyll a concentrations over time from sea water samples containing variable ciliates and flagellates densities. Using phytoplankton and bacteria from sea ice, the rates of sea ice bacteria and algal growth and rates of grazing by zooplankton was assessed.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: McMinn, A., Martin, A. and Ryan, K.G. 2010. Phytoplankton and sea ice algal biomass and physiology during the transition between winter and spring (McMurdo Sound, Antarctica). Polar Biology DOI: 10.1007/s00300-010-0844-6.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20070824
Ending_Date: 20070927
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20080904
Ending_Date: 20081005
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090825
Ending_Date: 20091009
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 166.6667
East_Bounding_Coordinate: 166.6667
North_Bounding_Coordinate: -77.85
South_Bounding_Coordinate: -77.85
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 166.4
East_Bounding_Coordinate: 166.4
North_Bounding_Coordinate: -77.6333
South_Bounding_Coordinate: -77.6333
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CHLOROPHYLL
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > MARINE HABITAT
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > GRAZING DYNAMICS/PLANT HERBIVORY
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > BIODIVERSITY FUNCTIONS
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > BIOMASS DYNAMICS
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PRIMARY PRODUCTION
Theme_Keyword: LABORATORY
Theme_Keyword: FIELD INVESTIGATION
Theme_Keyword: PAM > PORTABLE FLUORESCENCE ANALYZERS
Theme_Keyword: LGP > LATITUDINAL GRADIENT PROJECT
Theme_Keyword: EBA > EVOLUTION AND BIODIVERSITY IN THE ANTARCTIC
Theme_Keyword: BIOTA
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: CONTINENT > ANTARCTICA > CAPE ARMITAGE
Place_Keyword: CONTINENT > ANTARCTICA > CAPE EVANS
Place_Keyword: CONTINENT > ANTARCTICA > ROSS ISLAND
Place_Keyword: GEOGRAPHIC REGION > POLAR
Place_Keyword: OCEAN > SOUTHERN OCEAN > ROSS SEA
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: KEN RYAN
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Victoria University of Wellington
Address: School of Biological Sciences
Address: PO BOX 600
City: Wellington
Postal_Code: 6140
Country: New Zealand
Contact_Voice_Telephone: +64 4 463 6083
Contact_Facsimile_Telephone: +64 4 463 5331
Contact_Electronic_Mail_Address: ken.ryan@vuw.ac.nz
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Existing samples are held at Victoria University of Wellington with a spreadsheet of sample numbers. All raw data is held by the investigators. Please contact Dr Ken Ryan for more information.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
Back to Top
Spatial_Reference_Information:
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NZ/NZAI/ANZ > Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
Contact_Person: SHULAMIT GORDON
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Resource_Description: K043_2007_2008_NZ_1
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.antarcticanz.govt.nz/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
www.lgp.aq/
Access_Instructions:
LGP Project Homepage
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.victoria.ac.nz/sbs/staff/staff_research...
Access_Instructions:
Investigators research page
Fees: Not Available
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20050922
Metadata_Review_Date: 20100920
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: SHULAMIT GORDON
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Back to Top

  [  Return to Record   ]

Link to NASA website
Responsible NASA Official:   Dr. Stephen Wharton
Webmaster:   Monica Holland   ·  Contact GCMD User Support for assistance