Resistance Board Weir – Versatile Fisheries Management Tool That Can be Applied Worldwide
We describe the basic structure and function of a resistance board weir, its current use throughout the Pacific Northwest, and review a recent case study located in western Norway. The project’s main species of interest is the Atlantic salmon (Salmo salar) with a goal of removing farm-raised escapees from the wild spawning population. During the first season of operation the weir successfully removed a total of 92% of returning farmed salmon escapees from the river. In addition, we will discuss the potential to incorporate recent advances in fisheries science into the resistance board weir structure, such as high definition video, spot pattern recognition and genetic sampling analysis.