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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:	88dekgro
Dataset Title:	Comparison of arctic grayling growth in fertilized and unfertilized sections of the Kuparuk River, at high and low fish density, Arctic LTER 1988.
Investigator 1:
First Name:	L.
Last Name:	DEEGAN
Address line 1:
Address line 2:
Address line 3:
City:
State:
Zip Code:
Country:
Investigator 2:
First Name:	B.J.
Last Name:	PETERSON
Associate Investigators:	Carolyn Bauman, Tom Duncan, Carole McIvor, Chris Neill
Keywords:	Kuparuk, arctic grayling, ®MDUL¯Thymallus arcticus®MDNM¯, growth, density, fertilization
Abstract:	Comparison of arctic grayling growth in fertilized and unfertilized sections of the Kuparuk River, at high and low fish density.
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	88dekgro
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. CONTROL ZONES: High density, -0.8K to -0.9K; Low density, -0.9K to -1.3K; Ambient density, -1.3K to -1.8K. FERTILIZED ZONES: High density, 4.1k to 4.0K; Low density, 4.0K to 3.2K; Ambient density, 3.2K to 2.7K.
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:	The response of fish to fertilization was determined by monitoring adult grayling from control and fertilized river reaches. In early July, four fish weirs were constructed in each zone. Adult fish in each section were weighed, measured, tagged and released. Fish densities were manipulated in each segment so that there was one section with ambient (10 fish per km) density and one section with high (50 fish per km) density. In August, tagged fish were recaptured to measure growth of individual fish. Notes: Many D/D and RECAPD/D locations are estimated, because notes were kept regarding zones fish were captured in, not specific locations. Unless a specific location was given, the following estimates were used: HDC, D/D=-0.8K; LDC, D/D=-1; ADC, D/D=-1.5K; Control Zone, D/D=-0.1; HDF, D/D=4.0; LDF, D/D=3.6; ADF, D/D=3.0. On 4 August, 1988, flooding of the river resulted in most of the weirs being overtopped. Recapture length and weight measurements are not available for fish which escaped at this time. Reference Citations: ®PG¯ Sampling Description. None

Data Table

Variable    Variable descrip.            Precis./Units  Coded   Missing                                                                                                                 (Y/N)   Values
®IP1,1¯SITE        site of measurement                           y
TAG#        number on tag                                  n
COLOR       color of tag                                   n
TAGDATE     date fish was taggged        DDMMMYY           n
LENGTH      length of fish in July 88                      n
WEIGHT      weight of fish in July 88                      n
DATE        date of measurement          DDMMMYY           n
FORC        zone fish was in                               n
D/D         initial capture location                       n   -9999
COMMENT     initial capture comment                        n
RECPDATE    date fish recaptured         DDMMMYY           n
RECAPD/D    recapture location                             n   -9999
RECAPL      length at recapture                            n   -9999
RECAPWT     weight at recapture                            n   -9999
LCHANGE     change in length                               n   -9999
WTCHANGE    change in length                               n   -9999
RCOMMENT    recapture comments                             n
(12) CALCULATIONS
Variable        Formula
LCHANGE          RECAPL-LENGTH
WTCHANGE         RECAPWT-WEIGHT