Jeroen Huisman is a researcher fish migration and fish ecology at the Coastal and Marine Systems group at Van Hall Larenstein Applied Sciences University. He is interested in how fish cope with anthropogenic impacts, for example habitat alteration and migration barriers, in their ecology and migration patterns. His approach is to use multi layered sampling including integrating citizens science. We need to further elucidate the relation and impact of light on fish migration at migration pinch points.