There is a possibility that a colony of American red crayfish are living in the River Segura near Dolores .
The species was intrioduced into Spain in 1975 and its presence was thought of as favourable by the AHSA who have an interest in these wetlands .
The crustaceans are eaten by birds and can be used for food by humans . However it is now known that the feeding habits of the crayfish can endanger the ecosystem and they can also displace the European fresh water crayfish .
Pilar de la Horadada property
