Native salamanders and introduced fish: Changing the nature of mountain lakes and ponds
Fact Sheet
025-03
By: Gary L. Larson and Robert L. Hoffman
Links
- Document: Report (464 KB pdf)
- Download citation as: RIS | Dublin Core
Abstract
During the last century, many fishless mountain lakes and ponds in the Pacific Northwest were stocked with non-native fish, such as brook trout, for recreational purposes. These introduced fish replaced long-toed and northwestern salamander larvae as the top aquatic vertebrate predator by preying on salamander larvae. This predatory interaction has been shown to reduce the abundances of larval salamander populations. We conducted studies in two national parks to assess the abundances of salamander larvae in lakes with and without introduced fish. These studies suggest that the two salamander species were affected quite differently by the presence of introduced fish because of different life-history traits and different distributions of salamanders and fish within each park.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Native salamanders and introduced fish: Changing the nature of mountain lakes and ponds |
| Series title | Fact Sheet |
| Series number | 025-03 |
| DOI | 10.3133/fs02503 |
| Year Published | 2003 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Forest and Rangeland Ecosystem Science Center |
| Description | 2 p. |
| First page | 1 |
| Last page | 2 |
| Online Only (Y/N) | Y |
| Google Analytic Metrics | Metrics page |