Abstract:
This work was described the relation between the epipelic diatom flora and physico-chemical Of Nisi pond. Samples Were collected monthly between December 2004 and June 2005 at random stations and PO4-P, PO4, P2O5, NO3-N, NO3, Si, SiO2, Cl, pH, O-2, temperature (degrees C), Cl-a and Caretoneit were measured in water. Physico-Chemical data of Nisi pond shown that concentrations of P2O5, SiO2 and NO3-N were negatively correlated with temperature. PO4-P and PO2: concentration of water were observed positively correlation with the density of epipelic diatoms. A total 34 taxa belonging to 16 genera were identified. In the study period, Cymatopleura solea (Brebisson) W. Smith; Cymbella affinis Kutzing, Epithemia adnata (Kutzing) Brebisson, Nitzschia amphibia Grunow were the most dominant species.
