Management & Regulation Research: Catfish Populations and Fisheries in the Lower Wisconsin River

The objective of this research project is to test the hypothesis that emigration, immigration, and internal migrational patterns of lower Wisconsin River catfish populations constitute a significant component of the population dynamics and to assess the size and age structure, abundance, and harvest of those populations.

Background

Channel catfish are one of the most sought-after sport fish species in the lower Wisconsin River. Flathead catfish are also popular, but fewer in number. Despite these species' importance, knowledge of their population structures and dynamics is severely limited. As a result, management practices rely on tradition and intuition.

The DNR's Fisheries Management Strategic Plan clearly outlines the lack of information and the need for investigation: "There is very little information on the Wisconsin catfish fishery. Since there is almost no data on standing crop or harvest, no estimates of fishing trends can be made at this time. The emphasis for the planning period will be to obtain adequate data for a sound management plan."

The results of this study will help define management needs, in terms of programs, personnel, and fiscal resources, with the goal of maintaining or improving catfish populations and the dependent fisheries of the lower Wisconsin River.

For more information on this topic please contact:
Tim Larson (608) 635-8122