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- Presentation Type: Thesis Defense
- Date: 11/25/2015
Channel Catfish are widely distributed across North America and highly valued as a sport fish and for food. While most Channel Catfish fisheries are managed under liberal harvest regulations, the Red River of the North (Red River) in Manitoba, Canada is managed with restrictive harvest regulations to promote a trophy fishery for Channel Catfish. Our objectives were to: 1) analyze population dynamics of the trophy population of Channel Catfish on the lower Red River, 2) compare population characteristics of Channel Catfish at selected reaches throughout the Red River in Manitoba, and 3) determine movement characteristics of Channel Catfish and the permeability of the St. Andrews Dam on the lower Red River. We found lower Red River Channel Catfish were commonly reaching ages greater than 20, growing slowly, and had a low mortality rate. Trophy Channel Catfish were most common below the dam on the lower river, and small and intermediate sized Channel Catfish were most common on the upper-most sites we studied. Long distance, upstream movements (> 500 kilometers) were common for large (>600 mm) Channel Catfish. This research provides insight into the age, growth, and mortality of a trophy fishery for Channel Catfish. We believe restrictive harvest regulations have preserved the integrity of this fishery and are adequately maintaining the age and size structure of lower Red River Channel Catfish.
- BS - University of Tennessee- Knoxville (2011)
- MS - University of Nebraska-Lincoln, Natural Resource Sciences (2015)
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