4 ms·
See als https://en.wikipedia.org/wiki/Fish_ladder https://en.wikipedia.org/wiki/Fish_ladder and similar initiatives to allow migratory species to pass dams.
by markvdb 6y ago
See als https://en.wikipedia.org/wiki/Fish_ladder https://en.wikipedia.org/wiki/Fish_ladder and similar initiatives to allow migratory species to pass dams.