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Sclerochronology of Walleye Dorsal Spines, 2011-2016


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Keretz, K.R., Mckenna, J.R., and Kraus, R.T., 2018, Sclerochronology of Walleye Dorsal Spines, 2011-2016: U.S. Geological Survey data release,


This data release includes both a tabular data set and a zipped file of images. The tabular data set consists of measurements of annuli widths from Walleye dorsal spine thin sections. Walleye spines were sampled non-lethally from fish that were selected for acoustic telemetry tag implantation in several interrelated investigations. The telemetry work was coordinated through the Great Lakes Acoustic Telemetry Observation System (GLATOS, Measurements were obtained from digital images of spine thin sections within the zipped file provided, and can be used to understand the age and growth characteristics of tagged Walleye. These data can be cross-referenced with biological and tagging data in the GLATOS database [...]


Point of Contact :
Kevin R Keretz
Originator :
Kevin R Keretz, Jorden R Mckenna, Richard T Kraus
Metadata Contact :
Kevin R Keretz
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Great Lakes Science Center
USGS Mission Area :

Attached Files

Click on title to download individual files attached to this item.

1.22 GB
image_scale_index.csv 13.61 KB
walleye_spine_annuli_measurements_2011-2016.csv 242.99 KB
Original FGDC Metadata

17.54 KB


These data supplement various investigations of interjurisdictional Walleye movements in the Laurentian Great Lakes. The data can be used to understand the age and growth of Walleye that were tagged with acoustic telemetry transmitters and for which dorsal spine samples were obtained. The data presented here are primarily intended to support collaborative work on Walleye telemetry in which USGS is a partner. Those wishing to utilize these data will need to consult the owners of the tagging and biological data (identified in the GLATOS database) to understand the experimental design details for a specific project.


Spatial Services

ScienceBase WMS


  • Great Lakes Science Center (GLSC)
  • USGS Data Release Products



Additional Information


Type Scheme Key
DOI doi:10.5066/P9TJ0HU2

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