The current investigate included study some physical and chemical properties and
epiphytic algae in East Euphrates Drainage(AL-Hefar) were studied during the period from
November 2012 till April 2013 Three Sites were chosen along TheDrainage,Twomacrophytes
are frequently found,Ceratophyllumdemersumand Imperatacylindrica. these macrophytes are
chosen to study epiphytic algae .The Results showed that water of the Drainage was alkaline,
very hard ,and well oxygenated. Identification of epiphytic algae reached to(249) species,
the Bacillariophyceae ( diatoms ) were dominant with(153) species about(61.4%) followed
by Chlorophyceae with (47) species about(18.9%) , and (38) species about (15.3%) related to
Cyanophyceaeand (9) species about(3.7%) related to Euglenophyceae .and (2) species about
(0.8%) related toDinophyceae. In addition , epiphytic algae on Ceratophyllumdemersumwas
higher , than Imperatacylindrica study area . Also , the study showed dominancy of
Bacillariophyceae species like Gomphonema ,Cymbella,,Cocconies , Nitzschia, Ahnanthes
,Navicula. |