SOME WATER QUALITY CHARACTERISTICS OF EL-DEKHAILA HARBOUR, ALEXANDRIA, EGYPT.

SOME WATER QUALITY CHARACTERISTICS OF EL-DEKHAILA

HARBOUR, ALEXANDRIA, EGYPT.
BY
R.R.. ABDALLA*; F.A. ZAGHLOUL; Y.A. HASSAN

AND H.M. MOUSTAFA

*National Institute of Oceanography and Fisheries, Alexandria, Egypt.
Key words: Eutrophication, Nutrients.
ABSTRACT
Dekhaila
Bimonthly
Harbour
collections
at nine
of
selected
water samples
hydrographic
were carried
stations
out
during
in EIthe
periodfrom October 1990 to October 1991.
The study area is clearly affected by brackish polluted water
discharged from EI-Umoum drain through EI-Mex pumping station. This
can be indicated by high water column stability which enhanced
phytoplankton growth specially at surface water during October 1991
(20.4 x 106 Units. 1-1). Surface water was characterized by high nutrient
load particularly PO4, NO3, total and specific alkalinity and oxidizable
parency
organic matter.
due to the
The
heavy
water
growth
salinity
ofphytoplankton.
had low values
The
as
harbour
well as
may
transbe
considered as eutrophic region.