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Growth and toxicity tests on the marine nanoplanktonic alga Platymonas tetrathele G.S. West in the presence of crude oil and emulsifiers
Mommaerts-Billiet, F. (1974). Growth and toxicity tests on the marine nanoplanktonic alga Platymonas tetrathele G.S. West in the presence of crude oil and emulsifiers, in: IZWO Coll. Rep. 4(1974). IZWO Collected Reprints, 4: pp. chapter 12
In: (1974). IZWO Coll. Rep. 4(1974). IZWO Collected Reprints, 4[s.n.][s.l.], more
In: IZWO Collected Reprints. Instituut voor Zeewetenschappelijk Onderzoek: Bredene. ISSN 0772-1250, more

Also published as
  • Mommaerts-Billiet, F. (1973). Growth and toxicity tests on the marine nanoplanktonic alga Platymonas tetrathele G.S. West in the presence of crude oil and emulsifiers. Environ. Pollut. 4: 261-282, more

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Keywords
    Growth; Marine pollution; Nannoplankton; Toxicity tests; Marine

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  • Mommaerts-Billiet, F.

Abstract
    Phytoplankton response to environmental pollution by oil and emulsifiers has been studied. The nanoplanktonic flagellate Platymonas tetrathele has been assayed with increasing concentrations of crude oil, industrial non-ionic emulsifiers and mixtures of these products. Cultures poisoned with an emulsifier with an aromatic solvent exhibited a very long lag phase. Diminished growth rates were observed for all the products tested most of the time at concentrations above 50 ppm. The mixtures showed a toxicity close to that of the emulsifier component at its concentration in the mixture and lower than that of the crude oil alone. Fine structure modifications have been investigated and the possible ecological effects of such pollution have been discussed.

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