This is an important positive message about fish passage.
We are seeing an increase in the use of the term “natural barrier”, particularly when prioritizing remediation of man-made structures/barriers.
As it happens, many species of fish have evolved to navigate what humans might think are impossible features.
There are now a number of effective fixes that are very low cost, thereby eliminating the need to prioritize in the first place.
All structures in waterways need to allow for fish passage regardless of what is above or below them.
Please watch and share this short video
