Title page for ETD etd-06232009-063258
|Type of Document
||Leftwich, Kevin Ned
||Habitat models for predicting the occurrence of blotchside logperch (Percina burtoni) and tangerine darters (P. aurantiaca) in the North Fork Holston River and Little River, Virginia
||Master of Science
||Fisheries and Wildlife Sciences
|Angermeier, Paul L.
|Dolloff, C. Andrew
|Jenkins, Robert E.
|Neves, Richard J.
- Blotchside logperch
- Tangerine darters
|Date of Defense
Basin-wide visual estimation techniques developed in
the Pacific Northwest for small streams were modified to
survey about 180 river kilometers (rkm) of the North Fork
Holston River and about 16 rkm of lower Little River (Clinch
River tributary) in southwestern Virginia during the summer
of 1992 and 1993, respectively. Presence-absence models
were developed, using stepwise logistic regressions, from
habitat characteristics measured on a scale ranging from
large-scale (geographic location) to local-scale (habitat-unit
characteristics) for blotchside logperch (Percina
burtoni) and tangerine darter (P. aurantiaca) in the North
Fork Holston River. Transferability of models, developed
for both species in the North Fork Holston River, to Little
River were tested by comparing the models' predictions with
the data collected during the Little River survey.
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