Os. Okay et al., INVESTIGATION OF 3 WASTEWATERS ENTERING IZMIT BAY (TURKEY) BY MEANS OF BATCH AND CHEMOSTAT CULTURE ALGAL BIOASSAYS, Marine environmental research, 46(1-5), 1998, pp. 283-288
The ball of Izmit is the focus of much of Turkey's industrial developm
ent and three of the most important of the wastes discharged into its
surface waters have been studied as a necessary step in minimising the
ir environmental impact. Gas chromatography/mass spectrometry of the e
xtracted wastes revealed the presence of organic xenobiotics listed as
priority pollutants. Nevertheless, measurements of cell populations,
chlorophyll fluorescence and the consumption of nutrients demonstrated
that most of the wastes stimulated the grow th of both batch and chem
ostat cultures of Phaeodactylum tricornutum (Bohlin). Experiments show
ed the growth of the cultures to be phosphate limited and it appears t
hat the major effect of the wastes was due to their excessive loading
of phosphate. (C) 1998 Elsevier Science Ltd. All rights reserved.