The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

  
       
         
    STUDIA BIOLOGIA - Issue no. 1 / 2005  
         
  Article:   DISTRIBUŢIA CANTITATIVĂ A GRUPELOR ECOFIZIOLOGICE DE BACTERII IMPLICATE ÎN CIRCUITUL AZOTULUI ÎN LACUL DE ACUMULARE GILĂU.

Authors:  MANUELA-CLAUDIA CURTICĂPEAN, MIHAI DRĂGAN-BULARDA. 		 
       
         
  Abstract:  The quantitatively distribution of the bacteria ecophysiologic groups from the nitrogen cycle in the Gilău dam reservoir. The Gilău dam reservoir, situated on the Someşul Mic river has as main purpose to suply with drinking water the city Cluj-Napoca and the nearby vilages. Because the modification of the nitrogen concentration may determine a perturbation of the normal trophic cycle, the emphasize of the main microbiological activities and mechanisms from water and sediment, is essential, especially about the reduction of the nitrogen substances, determining the ammonium increases. In 2002 and 2003, have been achieved 6 seasonal harvest campaign, in each campaign have been taken 8 water samples and 7 sediment samples. The bacteriological researches were consisted in the determination of three ecophysiological groups of bacteria, involved in recycling of different organic residues, namely: ammonifying bacteria, nitrifying bacteria and denitrifying bacteria. At the same time, the resultes of the bacteriological analyses have been correlated with the resultes of the chemical analyses, especially with nitrogen system ones. The resultes of the chemical analyses were compared with the values from “The normative regarding the reference objectives for clasification of the surface water quality”, issues in 2002.  
         
     
         
         
      Back to previous page