Sub-ice algal assemblages of the Barents Sea: Species compostion, chemical composition, and growth rates 1986 - 1988

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Else Nost Hegseth
Publication_Date: 1992
Title: Sub-ice algal assemblages of the Barents Sea: Species compostion, chemical composition, and growth rates 1986 - 1988
Edition:
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Polar Ecology
Issue_Identification: 12 (1992): 485-496
Publication_Information:
Publication_Place:
Publisher:
Other_Citation_Details:
Online_Linkage: http://ak.aoos.org/ArcOD/data_table.php
Description:
Abstract:
This dataset describes ice algae (10 species; 38 rows) of the Barents Sea studied from 1986 to 1988. With a few exceptions, the ice algal assemblages were dominated by pennate diatoms. From March to early June there was a transition from a mixed population of both centric and pennate diatoms at the start into a well developed Nitzschia frigida assemblage. Nutrients in ice-covered regions were high in spring, and high N/C and protein/carbohydrate ratios indicated no nutrient deficiency in the ice algae. The N/P ratios were lower than 15, but comparable to ratios of three ice algae species grown in culture at -0.5 C and various light conditions. The Si/N ratios were lower than corresponding ratios from the Canadian Arctic and the Anarctic. The chemical composition revealed that silicate limited growth cannot be excluded. The cells were heavily shade-adapted the entire spring season, with high Chl/C ratios (0.045-0.084), comparable to the cultures growing at low irradiances. The growth rates in the cultures peaked at 50 ╬╝mol m-2 s-1 with maximum rates of 0.6-0.8 div. day-1, both for 12 and 24 h day lengths. The low growth rates for the May assemblages (max 0.20 div. day-1) indicated strong light limitation by self-shading. Adaptation experiments showed that some ice algae are highly adaptable, while others are not able to adjust by high irradiances, and this may affect the distribution in the field. These data are from a survey of the conditions and compositions of sub-ice algae in the Barents Sea.
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19860405
Ending_Date: 19880915
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -21.4166
East_Bounding_Coordinate: -32.9833
North_Bounding_Coordinate: 81.5
South_Bounding_Coordinate: 75.2666
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: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE > DIATOMS
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MACROALGAE (SEAWEEDS)
Theme_Keyword: SHIPS
Theme_Keyword: CORING DEVICES
Theme_Keyword: PLANKTON NETS
Theme_Keyword: OBIS > OCEAN BIOGEOGRAPHIC INFORMATION SYSTEM
Theme_Keyword: ARCOD > ARCTIC OCEAN BIODIVERSITY
Theme_Keyword: COML > CENSUS OF MARINE LIFE
Theme_Keyword: Abundance
Theme_Keyword: Species Composition
Theme_Keyword: Algal Assemblages
Theme_Keyword: Growth Rates
Theme_Keyword: Sub-ice
Theme_Keyword: Hopen Bank
Theme_Keyword: Hopen Depths
Theme_Keyword: Svalbard Bank
Theme_Keyword: King Karls Island
Theme_Keyword: White Island
Theme_Keyword: Central Bank
Theme_Keyword: BIOTA
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > ARCTIC OCEAN
Place_Keyword: OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > SVALBARD AND JAN MAYEN
Place_Keyword: CONTINENT > EUROPE > NORTHERN EUROPE > SCANDINAVIA > NORWAY
Place_Keyword: GEOGRAPHIC REGION > ARCTIC
Place_Keyword: GEOGRAPHIC REGION > POLAR
Place_Keyword: OCEAN > ARCTIC OCEAN > BARENTS SEA
Access_Constraints: None
Use_Constraints:
Although these data have been processed successfully on a computer system at the University of Alaska and ArcOD, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, 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 these data are directly acquired from a University of Alaska server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The University of Alaska shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: FALK HUETTMANN
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 419 Irving I, PO Box 757000
City: Fairbanks
State_or_Province: AK
Postal_Code: 99775-7000
Country: USA
Contact_Voice_Telephone: +01-907-4747882
Contact_Facsimile_Telephone: +01-907 4746967
Contact_Electronic_Mail_Address: fhuettmann@alaska.edu
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
ATTRIBUTE ACCURACY REPORT: NASpatial accuracy unknown. Ask authors for details. LOGICAL CONSISTENCY REPORT: Samples in September were collected with aerial assistance, rest by diving based from a ship. PROCESS DESCRIPTION: Added AOOS/IOOS core variables. Added ArcOD archive information. Changed "scientificnameauthors" to "scientificnameauthor" to match data csv and obis.xml
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: IOBIS > International Ocean Biogeographic Information System
Contact_Person: EDWARD VANDEN BERGHE
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Institute of Marine and Coastal Sciences
Address: Rutgers University
Address: 71 Dudley Road
City: New Brunswick
State_or_Province: NJ
Postal_Code: 08901-8521
Country: USA
Contact_Voice_Telephone: (732) 932-6555 x 565
Contact_Facsimile_Telephone: (732) 932-8578
Contact_Electronic_Mail_Address: evberghe@iobis.org
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: UAK-F/SFOS/AOOS > Alaska Ocean Observing System, School of Fisheries and Ocean Sciences, University of Alaska - Fairbanks
Contact_Person: ROB CERMAK
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Alaska Ocean Observing System
Address: School of Fisheries and Ocean Sciences
Address: University of Alaska Fairbanks
Address: PO Box 757200
City: Fairbanks
State_or_Province: AK
Postal_Code: 99775-7220
Country: USA
Contact_Voice_Telephone: (907) 474-7948
Contact_Electronic_Mail_Address: cermak@sfos.uaf.edu
Resource_Description: ArcOD_2008I4
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: XLS
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.iobis.org/
Access_Instructions:
DATA CENTER URL
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.aoos.org/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://ak.aoos.org/data/archive/2009/0000007/
Access_Instructions:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://ak.aoos.org/rest/metadata/ArcOD/2008I4
Access_Instructions:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.arcodiv.org/
Access_Instructions:
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 20080111
Metadata_Review_Date: 20100224
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: ALICIA ALEMAN
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Goddard Space Flight Center
Address: Code 610.2
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Electronic_Mail_Address: alicia.m.aleman@nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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