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Arctic LTER Database

Acceptance and utilization of LTER data requires that:

(1) The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
(2) The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications.
(3) A copy of any resultant publications should be sent to:

Principal Investigator
Ecosystems Center
Marine Biological Laboratory
7 MBL St.
Woods Hole, MA 02543

Older Metadata: Attribute table not in XML (EML) file

Dataset URLs:	METADATA: HTML, Rich Text, XML(EML compliant) DATA: Comma Delimited, Excel file with Metadata and data
Dataset ID:	91sckfly
Dataset Title:	del 13C and del 15N ratios were measured for black fly larvae collected from the control and fertilized reaches of the Kuparuk River, Arctic LTER 1988.
Investigator 1:
First Name:	Donald
Last Name:	Schell
Address line 1:
Address line 2:
Address line 3:
City:
State:
Zip Code:
Country:
Associate Investigators:	Bruce Barnett
Keywords:	Simuliidae, del 13C, del 15N.
Abstract:	del 13C and del 15N ratios were measured for black fly larvae collected from the control and fertilized reaches of the Kuparuk River.
Contact:	Arctic LTER Information Manager The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole, MA 02543 Phone (508) 289 7496 Email: arc_im@mbl.edu Online URL: http://ecosystems.mbl.edu/ARC/
DATA FILE INFORMATION:
Data File Name	91sckfly
Beginning Date	5/1/1988
End Date	9/1/1988
Number of Data Records
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes:	Log of changes: For Archival Use: DATE RECEIVED: DATA FILE ENTERED BY: DATA FILE VALIDATION: NAME: DATE:



RESEARCH LOCATION:
Geographic Description	Kuparuk River, Alaska, U.S.A. 68o 38'15"N, 149o 25'30"W.
Location Bounding Box
West Bounding Coordinate
East Bounding Coordinate
North Bounding Coordinate
South Bounding Coordinate
OR if single point location
Latitude
Longitude



TAXONOMIC COVERAGE:
Organisms studied

Methods:	Simuliidae larvae were scrapped from rocks located in the control and fertilized sections of Kuparuk River. Following collection, larvae were kept in cold water for several hours, frozen, then dried. Dried samples were ground to a fine powder and prepared for stable isotope analysis. Sampling Description. None

Data Table

Variable    Variable descrip.            Precis./Units
Coded   Missing
(Y/N)    Values
SITE        site of measurement                           y
DATE        date of collection             DD-MMM-YY      n
FAMILY      dipteran family
n
DEL C-13    del 13C ratio                     0.2 ppt     n
DEL N-15    del 15N ratio                     0.2 ppt     n
COMMENTS    notes about data                              n
(12) CALCULATIONS
Variable        Formula
del 13C = [(13C/12C sample / 13C/12C standard) - 1] x 1000
del 15N = [(15N/14N sample / 15N/14N standard) - 1] x 1000