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BK-Riverfish, LLC is a research & consulting business specializing in behavior of migratory fish and developing new fish ladders for fish with moderate swimming ability to enable them to pass upstream at dams

*  We study and consult on studies of freshwater and diadromous migratory fish in large rivers (Danube, Yangtze, Amazon), and in Atlantic coast rivers of N. America. We have 70+ years of experience studying behavior of fish.

*  Recently, we developed a new type of metal modular inexpensive fish ladder for the 21st Century. Fish passage in a prototype ladder in Indiana in October 2017 shows it passes diverse species (12 species so far) and fish as small as 30 mm long. Pic at top of page is the ladder being installed, note metal top. Also, see drone pic of ladder in other section.  Plans are to begin introducing this patented fish ladder to the market in 2018. If interested in the fish ladder, contact us at our email address.