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Observations on the effect of outboard motor fuel oil on phytoplankton cultures

Authors
Journal
Environmental Pollution Series A Ecological and Biological
0143-1471
Publisher
Elsevier
Publication Date
Volume
32
Issue
4
Identifiers
DOI: 10.1016/0143-1471(83)90017-x

Abstract

Abstract The effect of outboard motor fuel oil on the photosynthesis, chlorophyll a concentration and extracellular pH of the culture medium of five phytoplankton species was investigated. Chlorophyll a concentrations were not significantly affected, whereas the photosynthetic rates of two species were severely depressed. The fuel oil also caused an inhibition of the increase in extracellular pH of three species, while there were no detrimental effects due to the fuel oil on two species. The results indicated that the fuel oil tended to have a marked inhibitory effect on the photosynthesis of phytoplankton communities as a whole, while individual species may not be affected.

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