Sublethal effects of chemical industrial wastes on the growth and productivity of marine phytoplankton in a flow-through laboratory system
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Date
1983
Authors
Din, Zubir
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Journal ISSN
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Abstract
The responses of two marine centric diatoms, Skeletonema costatum
and Thalassiosira weissflogii, exposed to three bulk chemical wastes
were studied in a flow-through laboratory culture system. Five growth
and viability factors, consisting of chlorophyll a and adenosine triphosphate
(ATP) concentrations, uptake of H14C03-, and ratios of
guanosine triphosphate (GTP) to ATP and adenylate energy charge (AEC)
were measured to gauge the physiological responses of the diatoms
exposed in single species culture to the wastes. In addition, two of
the bulk wastes were purged with helium to remove the more volatile
components, and the most basic and most acidic of the bulk wastes were
neutralized to pH 8 before repeating the exposure series. Finally, two
of the wastes were added to a mixed culture system of the two diatoms.
The American Cyanamid wastes were more inhibitory to the growth of
both species of diatom than was the DuPont waste, while the Puerto Rico
effluent caused no reduction in growth or production up to 4000 ppm
Description
Keywords
Chemical industrial , Marine phytoplankton , Flow-through