Cooperative Fish and Wildlife Research Units Program:
Education, Research and Technical Assistance for Managing Our Natural Resources


Alewife passage in the St Croix River.

January 2022 - December 2023


Participating Agencies

The St. Croix River herring populations are at a critical stage in their recovery. Tracking and recording this growth and the accompanying biological changes in the fish population are urgent priorities for the scientists and managers who need this information to develop a long-term fisheries management plan and be able to evaluate the effects of river herring recovery on the health of the watershed ecosystem.
Planned project work in will address this data gap in fish passage using radio telemetry to assess fish locations and routes moving both upstream and downstream. Current planned assessments with partners will meet identified needs in the IWI funded “Exploring Upstream and Downstream Fish Passage Improvements on the Lower St. Croix River” to help further fisheries restoration resources in the St. Croix River.