COMPARATIVE ROLE OF EPIBIOTA AND PLANKTON PRIMARY AND SECONDARY PRODUCERS IN EGYPTIAN DELTA LAKES.

COMPARATIVE ROLE OF EPIBIOTA AND PLANKTON PRIMARY
AND SECONDARY PRODUCERS IN EGYPTIAN DELTA LAKES.
By
SHOUKRY KAHEL GUERGUESS
National Institute of Oceanography and Fisheries, Alelandria, ARE.
Key Words: Plankton, Epbiota, productivity, Lakes, Egypt.
ABSTRACT
A comparative study of the productiVity of laSiO
and ep1zoa on Potamoqeton ectinatus in Egyptian brac 1S
khobiza fish farm, Lake Edku and Lake Menzalah) with t e
and zooplankton standing crops was carried out. The SC~IULl’~
epibiota was assessed per un1t weight (gm) and unit area
hydrophytes. The comparat1ve relationship of the stand g
epibiota substrate on hydrophytes is much greater tha
crop of plankton. The ep1b10ta w1th the macrophytes
important food item for the most common Egyptian s
waters, Tila~a spp.