The paper presents data referring to the
comparative structure of the benthic invertebrate
fauna of the Doamnei River, in the sector Cernat
– Dârmăneşti.
In all sampling stations, the main elements
specific to unpolluted mountain waters are
constantly present: amphipods, ephemeropterans,
plecopterans, trichopterans, simuliids, 103
chironomids, most of them being dominant
groups.
On the basis of relative abundance, the
dominancy of the invertebrate groups is
highlighted. In particular, the community
structure of the mayflies larvae (group constantly
dominant in all studied sites) is analyzed, being
presented the list of the taxa, ecological spectrum,
relative abundance, frequency and other
ecological characteristics of the mayflies fauna. | 
