New Concepts in Fish Ladder Design, Volume II of IV: Results of Laboratory and Field Research on New Concepts in Weir and Pool Fishways

A comprehensive review of fishway design practice led to a new design concepts that had previously been untested. This concept was based on the observation that fish can be stimulated to leap when presented with certain hydraulic conditions. A laboratory test program was conducted to develop this concept into a new fishway configuration. Field testing revealed that components of the new design improved fish passage. Verification of the initial premise that fish can be stimulated to leap needs further study.