The Trophic Spectra of Squalius Cephalus (Linnaeus, 1758) and Rhodeus Amarus (Bloch, 1782) Fish Species From Dâmbovnic River (Neajlov/Danube Basin)

The trophic level highlights the relation between fish and macroinvertebrates. This was achieved by qualitative and quantitative analysis of the macroinvertebrates found in the stomach contents of chub (Squalius cephalus) and European bitterling (Rhodeus amarus) living in the Dâmbovnic River, a tributary of the Neajlov River. Fish sampling was performed by electro-shocking method in the summer of 2006. Macroinvertebrates in the stomach contents were identified down to the lowest taxon possible. The analysis revealed that nearly all the specimens found in the stomach contents of the fish belong to the class Insecta. The highest values of abundance were recorded from the Order Diptera.