Evaluation of water quality in six springs northen Damghan based on the variety of macrobenthoses

Subject Areas : New Technologies in Aquaculture Development

Received: 2020-12-08 Accepted : 2020-12-08 Published : 2012-02-20

Keywords: Water Quality, spring, macrobenthic, Keywords: Damghan,

Abstract :

Abstract[1] Damghan is located in Semnan province between Shahroud in the east and Semnan in the west. Today in study determination water quality, the presence of Macrobenthoses was taken into consideration as a supplementary index to identify the pollution through chemical methods. In resistance to pollution, Macrobenthics are vital index for freshwater environments. In this investigation To this respect Six stations were sampled by Surber samplers (35×35 cm) in a course of 70 Km from August 2009 to July 2010 the collected samples were fixed in 4% formaldehyde solution and then for assessment and study transferred to the laboratory. 18 families out of 11 species were identified which mostly belonged to: Diptera, Amphipoda, Trichoptera, Tricladida, Ephemeroptera. Index Family biological Hilsebhoff (equity 1), were used to for Evaluation of water quality in six springs. In based of our researches, among them, these two stations: fourth station (Absij Dibaj Spring) and fifth station (Abrendan Spring) have the highest cleanest water. *- Corresponding Authors; Email: [e-mail]