Unblocking the River Mondego for migratory fish
In River Mondego, several obstacles to fish migration were identified as requiring solutions to promote fish movements. One of the weirs considered problematic for fish migration is located downstream of Açude-Ponte dam, and the remaining four are located upstream.
The main actions of the project attend the existence of human activities associated with the river and involve the building of nature-like fish passes in the identified obstacles and the removal of one of the weirs that has no current use. Ramps for kayaking were constructed adjacent to the fish pass, so this action will not only promote the upstream migration of fish but also the downstream movement of kayaks.
 Penacova weir (before). |  |  Penacova weir (after), low flow condition. |
 Carvoeira weir (before). | |  Carvoeira weir (after), low flow condition. |
 Louredo weir (before). | |  Louredo weir (after), low flow condition. |
 Palheiros weir (before). | |  Palheiros weir (after), low flow condition. |
 Formoselha weir (before). | |  Formoselha weir (after), low flow condition. |
