Demographic Changes Following Mechanical Removal of Exotic Brown Trout in an Intermountain West (USA), High-Elevation Stream

Authors

Phaedra E. Budy, Utah State UniversityFollow
W. Carl Saunders, Utah State UniversityFollow
Gary P. Thiede, Utah State UniversityFollow

Document Type

Article

Journal/Book Title/Conference

Ecology of Freshwater Fish

Publication Date

2014

Keywords

Demographic Changes, Brown Trout, Intermountain West

Abstract

Exotic species present a great threat to native fish conservation; however, eradicating exotics is expensive and often impractical. Mechanical removal can be ineffective for eradication, but nonetheless may increase management effectiveness by identifying portions of a watershed that are strong sources of exotics. We used mechanical removal to understand processes driving exotic brown trout (Salmo trutta) populations in the Logan River, Utah. Our goals were to: (i) evaluate the demographic response of brown trout to mechanical removal, (ii) identify sources of brown trout recruitment at a watershed scale and (iii) evaluate whether mechanical removal can reduce brown trout densities...

Recommended Citation

Budy, Phaedra E.; Saunders, W. Carl; and Thiede, Gary P., "Demographic Changes Following Mechanical Removal of Exotic Brown Trout in an Intermountain West (USA), High-Elevation Stream" (2014). Watershed Sciences Faculty Publications. Paper 860.
https://digitalcommons.usu.edu/wats_facpub/860