Sulle interrelazioni trofiche in due fiumi italiani: il Po e il Garigliano
A description of the trophic structure of the river Po and Garigliano is presented. At the same time a comparison was attempted between the two food-webs. The food-web of the river Garigliano, in general, appears to be more "open", whilst that of the river Po seems more complex but not so rich in energy output. The importance of human activity in the two ecosystems is also taken into consideration.