Skip to main content
Article
Exploring the Relative Influence of Biotic Interactions and Environmental Conditions on the Abundance and Distribution of Exotic Brown Trout (Salmo trutta) in a High Mountain Stream
Ecology of Freshwater Fish (2008)
  • Phaedra Budy, Utah State University
  • G. P. Thiede
  • P. McHugh
  • E. S. Hansen
  • J. Wood
Abstract

In the Logan River, UT, USA, exotic brown trout demonstrate a strong allopatric distribution and occur at high densities at low-elevation sites and in tributaries, and in low densities at native trout dominated, high-elevation sites. Summer temperatures and discharge do not appear limiting for growth; adult growth rates were high overall and were greatest when fish were held experimentally at high elevation where they do not occur naturally. Brown trout are superior competitors; competition for space or food was stronger with their own con-specifics than with other species...

Keywords
  • Exploring,
  • Influence,
  • Biotic,
  • Interactions,
  • Environmental,
  • Conditions,
  • Abundance,
  • Distribution,
  • Exotic,
  • Brown Trout,
  • Mountain Stream
Disciplines
Publication Date
2008
Citation Information
Budy, P., G.P. Thiede, P. McHugh, E.S. Hansen, and J. Wood. 2008. Exploring the relative influence of biotic interactions and environmental conditions on the abundance and distribution of exotic brown trout (Salmo trutta) in a high mountain stream. Ecology of Freshwater Fish 17:554-­‐566.