The role of migration in community dynamics in Beaver Lake Basin
Armichardy DJ. 2008. The role of migration in community dynamics in Beaver Lake Basin. Northern Michigan University
Fish migration patterns in response to climatic variables were examined within the Beaver Lakes Basin of Pictured Rocks National Lakeshore. Twenty-two species of fish were captured; those exhibiting spawning migrations were white suckers (Catastomus commersoni) and northern logperch (Percina caprodes). Adult white sucker entrance into streams for the spring of 2002 and 2003 was correlated with moonlength and photoperiod. Northern logperch entrance into the stream during the spring of 2002 and 2003 was correlated with mean water temperature, degree-day, and photoperiod. Seasonal and location differences in fish community composition differed between Lowney Creek and the Beaver Channel. Connectivity and the usage of a suite of environmental variables for spawning likely allowed persistence and facilitated a diversity of life history adaptations by lentic fishes that would otherwise not be found within this basin.
- Type
- Academic
- Authors
- Armichardy, Daniel
- Date of Issue
- 2008
- Publisher
- Northern Michigan University
- Units
- PIRO
- Keywords
- Abundance (Biodiversity), Beaver Basin, Beaver Creek, Beaver Lake, Distribution (Biodiversity), Fish, Fish Distribution, Little Beaver Creek, Little Beaver Lake, logperch (Percina caprodes), Lowney Creek, Migration, Observations, Presence (Biodiversity), Thesis, white sucker (Catastomus commersoni)