A SYNOPTIC SURVEY ON NUMBER OF BACTERIA AND BIOMASS IN RELATION TO PHYSICO-CHEMICAL PARAMETERS IN EASTERN HARBOUR OFALEXANDRIA, EGYPT

A SYNOPTIC SURVEY ON NUMBER OF BACTERIA AND BIOMASS IN

RELATION TO PHYSICO-CHEMICAL PARAMETERS IN EASTERN

HARBOUR OFALEXANDRIA, EGYPT

BY
E. E. SlAM*
*National Institute ofOceanography end Fisheries, Ale:A-andriLI, Egypt.
Key words: Bacteriology, Hydrobiology, Alexandria: Mediterranean.
ABSTRACT
The bacterial count, and its bioniass were tstima;ed in the
seawater of the Eastern Harbour of AI~xandria in relation to some
physicochemical parameters to show t,h’!ir effect on the bacterial
abundance and its biomass in a ·water bocJ.v subjPcted tn jast changing.
The bacteriological count in thl! area shvwed pronounced
differences, ranging between 0.47 to 5.4 million cells/ml for total
bacterial number (TBN) and from 540 to 5400 CFU/ml for viable
saprophytic bacteria. The bacterial biDmass (BBM) rangedfrom 97.6
J1gCgm3 in winter to 190.4 J1gCgm3 zn summer.