Fishing licences for lakes at la Senia can be obtained locally in the Prop Offices in Vinaros on the corner of La Muralla & San Joaquin streets.

Also I have seen fly fishing and spinning being done on Caspe II which is close to Alcaniz.  I believe that the lake holds both trout and Black Bass as well as a stack of carp.
Licence is and Aragon licence which can be obtained in Government offices in Fraga.