Abstract
Researches were conducted on Ephemeroptera larvae in the period 2010-2012, in 4 sections Trotuş river basin, taking into account a number of economic, tourism and social parameters. The four sections of the work were: Section Trotuş - Ghimeş Faget, Section Trotuş - Dărmăneşti Section Trotuş - Tg - Ocna and Section Trotuş - Vrancea. Study of bio parameters (absolute abundance and relative abundance) revealed the number of species, the peculiarities or species dominance, species biodiversity and annual growth by type of sector. The identified Ephemeroptere species have been framed in 7 family, 14 genera and 29 species. Families Baetidae and Heptageniidae are represented by the largest number of species (10 respectively 9).
Cuvinte cheie
ephemeroptere
abundance
biodiversity
quality indicator
Trotus River