Longitudinal connectivity, Graph theory, Fish passability, Directional networks, Asymmetric dispersal, Riverscapes, HABITAT PATCHES, RESTORATION, GRAPH-THEORY, ENVIRONMENTAL SCIENCES, FISH PASSAGE, CONSERVATION, REMOVAL, AVAILABILITY, MARINE & FRESHWATER BIOLOGY, LIMNOLOGY, LANDSCAPE CONNECTIVITY, INDEXES, WATER, Dams, Design and construction, Networks, Meth...