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Arctic LTER Database

Arctic LTER Database

Conditions of Use

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms:

1) Acceptable use. Use of the dataset will be restricted to academic, research, educational, government, recreational, or other not-for-profit professional purposes. The Data User is permitted to produce and distribute derived works from this dataset provided that they are released under the same license terms as those accompanying this Data Set. Any other uses for the Data Set or its derived products will require explicit permission from the dataset owner.
2 ) Redistribution. The data are provided for use by the Data User. The metadata and this license must accompany all copies made and be available to all users of this Data Set. The Data User will not redistribute the original Data Set beyond this collaboration sphere.
3 ) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier. For example:

Shaver, G. 1989. Above ground biomass in acidic tussock tundra experimental site, 1989, Arctic LTER, Toolik, Alaska. Arctic LTER, Marine Biological Lab, Woods Hole, Ma 02543. 1989gsttbm 

4 ) Acknowledgement. The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example:

Data sets were provided by the Arctic LTER. This material is based upon work supported by the National Science Foundation under Grants #DEB-981022, 9211775, 8702328; #OPP-9911278, 9911681, 9732281, 9615411, 9615563, 9615942, 9615949, 9400722, 9415411, 9318529; #BSR 9019055, 8806635, 8507493.

5 ) Notification. The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed. The Data User will provide the data contact with two reprints of any publications resulting from use of the Data Set and will provide copies, or on-line access to, any derived digital products. Notification will include an explanation of how the Data Set was used to produce the derived work.
6 ) Collaboration. The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

By accepting this Data Set, the Data User agrees to abide by the terms of this agreement. The Data Owner shall have the right to terminate this agreement immediately by written notice upon the Data User's breach of, or non-compliance with, any of its terms. The Data User may be held responsible for any misuse that is caused or encouraged by the Data User's failure to abide by the terms of this agreement.


While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available "as is". The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Dataset URLs:METADATA: HTML, Rich Text, XML(EML compliant)
DATA: Comma Delimited, Excel file with Metadata and data, Dataset via LTER Data Portal
Dataset ID:1990-2001_Oksrukuyik_GraylingGrowth.05
Dataset Title:Arctic Grayling Growth on the Oksrukuyik Creek near Toolik Field Station, Alaska 1990-2001
Investigator 1: 
First Name:Breck
Last Name:Bowden
Organization:University of Vermont
Address line 2:303D Aiken Center
Address line 3:Rubenstein School of Environment and Natural Resources
Zip Code:05405
Investigator 2: 
First Name:Linda
Last Name:Deegan
Organization:Marine Biological Laboratory
Address line 2:7 MBL St.
Address line 3:The Ecosystems Center
City:Woods Hole
Zip Code:02543
Investigator 3: 
First Name:Elissa
Last Name:Schuett
Organization:University of Vermont
Address line 2:3 College St.
Address line 3:RESL
Zip Code:05401
Associate Investigators:
Keywords:growth, populations, fishes
Abstract:Arctic Grayling were collected at designated stations on the Oksrukuyik from 1990 to current time. Phosphorus addition has occurred from 1991 to 1996; station sites are relative distance from the original 1991 dripper. Grayling were caught, pit tagged, weighed, measured, and then released back into the river.
For questions about the Metadata and data contact the Investigators.
For information about this web site 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 URL
Data File Name 1990-2001_Oksrukuyik_GraylingGrowth.csv
Beginning Date 7/3/1990
End Date 7/10/2001
Number of Data Records 171
Other Files to Reference
Availability Status 1
Quality Control Information
Maintenance Description
Log of Changes: 4/2011: JPB organized metadata and data into this file.
Version 2: Reformatted dates to enable upload
Version 3: replaced ### with . For missing dates
Version 4: Changed Distrubution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015
Version 5: Changed Distrubution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015
Location Name Oksrukuyik -0.1k Oksrukuyik -0.3k Oksrukuyik -0.7k Oksrukuyik 0.8k Oksrukuyik 1.37k  
Geographic Description Oksrukuyik Creek, North Slope of Alaska, reference reach, upstream of the formerly fertilized reach. Oksrukuyik Creek, North Slope of Alaska, reference reach, upstream of the formerly fertilized reach. Oksrukuyik Creek, North Slope of Alaska, reference reach, upstream of the formerly fertilized reach. Oksrukuyik Creek, North Slope of Alaska, recovery reach, formerly fertilized reach. Oksrukuyik Creek, North Slope of Alaska, recovery reach, formerly fertilized reach.  
Location Bounding Box            
West Bounding Coordinate            
East Bounding Coordinate            
North Bounding Coordinate            
South Bounding Coordinate            
OR if single point location            
Latitude 68.671486222 68.671371694 68.67101801 68.67719327 68.679780992  
Longitude -149.1281271 -149.131155484 -149.137892686 -149.121792258 -149.114206438  
Elevation 761.756 763.881 764.537 763.881 762.678  
Link to Google Map View on Google Map View on Google Map View on Google Map View on Google Map View on Google Map  
Organisms studied
Methods:Arctic grayling were caught in the Oksrukuyik Creek using unbarbed hooks with hook and line gear. The fish were tagged with different types of tags, depending on the year of caputre. Originally, Floy tags were used, but recently, PIT tags have been used. If the fish were caught a second time during a single summer, the growth was determined based on the change in length and weight from the first capture to the second. The fish were kept in the same reach as original capture through the use of fish weirs blocking movement.

Data Table

Variable Name Variable Description Data Type Units DateTime Format Code Information Missing Value Code
Site Code Arctic LTER Site number text        
River River text        
Date Date fish was originally captured datetime   dd-mmm-yyyy    
Station (km) Distance from original N and P dripper, in kilometers. Negative numbers indicate sites upstream from fertilization, postive numbers are downstream. text        
Reach Reach that fish was originally captured text        
Tag # Tag serial number text        
Color Color of tag text        
Length Length of Fish number centimeter     '-1111=no data
Weight Weight of fish number gram     '-1111=no data
Recap Length Length of Fish after recapture number centimeter     '-1111=no data
Recap Weight Weight of fish after recapture number gram     '-1111=no data
Recap Date Recapture date datetime   dd-mmm-yyyy   .=no data
Recap Station (km) distance from original1983 Phosphorus addition when recaptured text        
Recap Reach Reach that fish was recaptured text        
Length Change change in length number centimeter     '-1111=no data
Weight Change change in weight number gram     '-1111=no data
Comments comments about fish health and characteristics text        
Recap Comments comments about fish health and characteristics text        

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