An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Engineering has an important role to play in the conservation of migratory fish species. As a result of anthropogenic development on river systems, full and partial barriers to fish movement commonly exist in watersheds worldwide. There is an estimated 2.5 million barriers to fish migration in the United States alone. These barriers typically consist of small to large size dams, culverts, and...
Engineering has an important role to play in the conservation of migratory fish species. As a result of anthropogenic development on river systems, full and partial barriers to fish movement commonly exist in watersheds worldwide. There is an estimated 2.5 million barriers to fish migration in the United States alone. These barriers typically consist of small to large size dams, culverts, and...
Engineering has an important role to play in the conservation of migratory fish species. As a result of anthropogenic development on river systems, full and partial barriers to fish movement commonly exist in watersheds worldwide. There is an estimated 2.5 million barriers to fish migration in the United States alone. These barriers typically consist of small to large size dams, culverts, and...
Engineering has an important role to play in the conservation of migratory fish species. As a result of anthropogenic development on river systems, full and partial barriers to fish movement commonly exist in watersheds worldwide. There is an estimated 2.5 million barriers to fish migration in the United States alone. These barriers typically consist of small to large size dams, culverts, and...