The invertebrate community of littoral sandy ahores in Lake Albano (Italy): fauna composition and ecological remarks

The zoobenthos associated with littoral sandy substratum in Lake Albano was sampled during one year in order to evaluate its qualitative and quantitative composition. The community was quite diversified (76 identified taxa) and characterized quantitatively by Oligochaeta, Nematoda and Chironomidae and secondarily by Crustacea (Copepoda and Amphipoda). A diagnosis of mesotrophy in the lake littoral was based both on densities oftotal fauna and bioindicator taxa and values of some bioindices. The possible importance of the NIT ratio (number of species belonging to naididsl number of species belonging to tubificids) is discussed for the first time