LTER network Toolik Field Station MBLhome page

Sun and Moon

Toolik Weather Graphs

Arctic LTER Weather Stations

Toolik Webcam

Animated Gif of yesterday's Webcam

Arctic LTER Inhouse login

  Our web site has beed moved. Please update your bookmarks for the new site.

Arctic LTER Database

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:89heotod
Dataset Title:Total numbers and species of insects taken from the Oksrukuyuk Creek drift samples during the summer of 1989 , Arctic LTER 1989.
Investigator 1: 
First Name:Anne
Last Name:Hershey
Address line 1:
Address line 2:
Address line 3:
Zip Code:
Associate Investigators:Jason McCrea
Keywords:Oksrukuyuk, baetis, rhyacophila, brachycentrus, orthothocladius, natarsia, black fly, cinygmula, nemoura, chironomid
Abstract: Total numbers and species of insects taken from the Oksrukuyuk Creek drift samples during the summer of 1989
Contact: Arctic LTER Information Manager
The Ecosystems Center
Marine Biological Lab
7 MBL St
Woods Hole, MA 02543
Phone (508) 289 7496
Online URL:
Data File Name 89heotod
Beginning Date 5/1/1989
End Date 9/1/1989
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: Jul 91 DATA FILE ENTERED BY: Julie Pallant DATA FILE VALIDATION: NAME: Julie Pallant DATE:3Oct91
Geographic Description Just a kilometer or two upstream of where the Oksrukuyuk Creek crosses the Dalton highway, approximately 15 miles south of the Sag River DOT station.
Location Bounding Box
West Bounding Coordinate
East Bounding Coordinate
North Bounding Coordinate
South Bounding Coordinate
OR if single point location
Organisms studied

A 15 minute drift sampling technique was
used to collect drift samples at nine different stations (-550m,
-320m, -267m, -136m, 233m, 482m, 1056m, 1370m, and 1800m) with
three replicates at each station in the Oksrukuyuk Creek. Two
different dates were sampled, the same procedure was used for every
date, except that on 3-Jul-89 the 233m station was not sampled and
on 31-Jul-89, the 1800m station was not sampled. The stations are
measured relative to the future site of the new dripper.
The samples were preserved in ethanol then picked, sorted,
counted, and measured in Duluth using a digitizing pad.

Notes: There is one sample missing from this
worksheet: #2 482m from 31-July-1989.
*** All insect numbers are counts of larval forms. ***

Sampling Description.


Data Table

Variable    descrip.              Precis./Units   Coded   Missing
(Y/N)   Values
SITE        Oksrukuyuk Creek                         y
DATE        date                        DDMMMYY      n
STATION     distance from new dripper   meters       n
SAMPLE      repetition number           1,2, or 3    n
BRACHY      number of brachycentrus                  n        blank
NATARSIA    number of natarsia                       n        blank
ORTHOCLAD   number of orthocladius                   n        blank
BLACK       number of black flies                    n        blank
BAETIS      number of baetis                         n        blank
CHIRON      number of chironomids                    n        blank
RHYACOPH    number of rhyacophila                    n        blank
CHIRPUPA    number of chironomid pupae               n        blank
BLKPUPA     number of black fly pupae                n        blank
BAET SP3    number of baetis "species 3"             n        blank
CINYG       number of cinygmula                      n        blank
NEMOURA     number of nemoura                        n        blank
COMMENTS    notes about data                         n        blank
Variable        Formula

Please contact with questions, comments, or for technical assistance regarding this web site.