Grande: Sabinas River

Conservazione: The exotics introduction is the biggest trouble in the river, but also the over extraction of water for agricultural purposes.

The "cleaning" (cutting the underwater vegetation) of the bottom performed by the City as the routine management of the River, that is used as a recreational area; plus the recent introduction of Koi carp Cyprinus carpio and African Mojarra Oreochromis sp. is also a big concern, the first eutrophication symptoms are visible.