Christopher Guy, PhD
Assistant Unit Leader - Montana Cooperative Fishery Research Unit
Research Interests
- Fish ecology
- Fishery stock assessment
- Fishery management regulations and tools
- Native and non-native species interactions
Teaching Interests
- Fisheries Science
- Fisheries Techniques
Professional Experience
Assistant Unit Leader, Montana Cooperative Fishery Research Unit, 1994-
Education and Certifications
Ph D South Dakota State University 1993
Science and Products
Filter Total Items: 40
Use of cover habitat by bull trout, Salvelinus confluentus, and lake trout, Salvelinus namaycush, in a laboratory environment
Lacustrine-adfluvial bull trout, Salvelinus confluentus, migrate from spawning and rearing streams to lacustrine environments as early as age 0. Within lacustrine environments, cover habitat provides refuge from potential predators and is a resource that is competed for if limiting. Competitive interactions between bull trout and other species could result in bull trout being displaced from cover
Authors
Michael H. Meeuwig, Christopher S. Guy, Wade A. Fredenberg
Diet overlap of top-level predators in recent sympatry: bull trout and nonnative lake trout
The establishment of nonnative lake trout Salvelinus namaycush in lakes containing lacustrine–adfluvial bull trout Salvelinus confluentus often results in a precipitous decline in bull trout abundance. The exact mechanism for the decline is unknown, but one hypothesis is related to competitive exclusion for prey resources. We had the rare opportunity to study the diets of bull trout and nonnative
Authors
Christopher S. Guy, Thomas E. McMahon, Wade A. Fredenberg, Clinton J. Smith, David W. Garfield, Benjamin S. Cox
Trophic relationships between a native and a nonnative predator in a system of natural lakes
Bull trout, a species of char listed as threatened under the US Endangered Species Act, have been displaced from portions of their historic range following the introduction of nonnative lake trout. It has been suggested that competitive exclusion as a result of trophic overlap between bull trout and lake trout may be the causal mechanism associated with displacement of bull trout. This study used
Authors
Michael H. Meeuwig, Christopher S. Guy, Wade A. Fedenberg
Founding population size of an aquatic invasive species
Non-native species of fish threaten native fishes throughout North America, and in the Rocky Mountains, introduced populations of lake trout threaten native populations of bull trout. Effective management of lake trout and other exotic species require understanding the dynamics of invasion in order to either suppress non-native populations or to prevent their spread. In this study, we used microsa
Authors
Steven T. Kalinowski, Clint C. Muhlfeld, Christopher S. Guy, Benjamin Cox
Science and Products
Filter Total Items: 40
Use of cover habitat by bull trout, Salvelinus confluentus, and lake trout, Salvelinus namaycush, in a laboratory environment
Lacustrine-adfluvial bull trout, Salvelinus confluentus, migrate from spawning and rearing streams to lacustrine environments as early as age 0. Within lacustrine environments, cover habitat provides refuge from potential predators and is a resource that is competed for if limiting. Competitive interactions between bull trout and other species could result in bull trout being displaced from cover
Authors
Michael H. Meeuwig, Christopher S. Guy, Wade A. Fredenberg
Diet overlap of top-level predators in recent sympatry: bull trout and nonnative lake trout
The establishment of nonnative lake trout Salvelinus namaycush in lakes containing lacustrine–adfluvial bull trout Salvelinus confluentus often results in a precipitous decline in bull trout abundance. The exact mechanism for the decline is unknown, but one hypothesis is related to competitive exclusion for prey resources. We had the rare opportunity to study the diets of bull trout and nonnative
Authors
Christopher S. Guy, Thomas E. McMahon, Wade A. Fredenberg, Clinton J. Smith, David W. Garfield, Benjamin S. Cox
Trophic relationships between a native and a nonnative predator in a system of natural lakes
Bull trout, a species of char listed as threatened under the US Endangered Species Act, have been displaced from portions of their historic range following the introduction of nonnative lake trout. It has been suggested that competitive exclusion as a result of trophic overlap between bull trout and lake trout may be the causal mechanism associated with displacement of bull trout. This study used
Authors
Michael H. Meeuwig, Christopher S. Guy, Wade A. Fedenberg
Founding population size of an aquatic invasive species
Non-native species of fish threaten native fishes throughout North America, and in the Rocky Mountains, introduced populations of lake trout threaten native populations of bull trout. Effective management of lake trout and other exotic species require understanding the dynamics of invasion in order to either suppress non-native populations or to prevent their spread. In this study, we used microsa
Authors
Steven T. Kalinowski, Clint C. Muhlfeld, Christopher S. Guy, Benjamin Cox