This space is reserved for the collaboration of visitors to my page.

I will appreciate the positive and negative comments in expression of a freedom that should characterize us.

The fundamental issue will be the Fish Ladder and everything related to its operation.

I will try to answer all the questions and comments.

Although for the time being the page is written in Spanish, I will be able to respond to those written in French, English, Portuguese, Italian and any other language that can be easily translated by Google.