Spatio-temporal variability in movement, age, and growth of mountain whitefish (Prosopium williamsoni) in a river network based upon PIT tagging and otolith chemistry

Connectivity of river networks and the movements among habitats can be critical for the life history of many fish species, and understanding of the patterns of movement is central to managing populations, communities, and the landscapes they use. We combined passive integrated transponder tagging over 4 years and strontium isotopes in otoliths to demonstrate that 25% of the mountain whitefish (Prosopium williamsoni) sampled moved between the Methow and Columbia rivers, Washington, USA. Seasonal migrations downstream from the Methow River to the Columbia River to overwinter occurred in autumn and upstream movements in the spring. We observed migration was common during the first year of life, with migrants being...

Categories: Publication; Types: Citation; Tags: Data Visualization & Tools, Fish, Northwest CASC, Prosopium williamsoni, Rivers, Streams and Lakes, All tags... Science Tools For Managers, Water, Coasts and Ice, Wildlife and Plants, mountain whitefish, river networks, Fewer tags