Toxicity of cyanobacteria in dutch lakes and reservoirs

In the summer of 1980, waterblooms and scums of Microcystis aeruginosa, Oscillatoria agardhii and Gloeotrichia echinulata were collected at 11 locations. Acute toxicity of sonificated cyanobacterial suspensions was tested by i.p. injection in mice. The results indicate that in 9 out of 10 locations...

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Bibliographic Details
Published in:Aquatic toxicology 1983-01, Vol.4 (1), p.63-72
Main Authors: Leeuwangh, P., Kappers, F.I., Dekker, M., Koerselman, W.
Format: Article
Language:English
Subjects:
Freshwater
Gloeotrichia echinulata
Microcystis aeruginosa
Oscillatoria agardhii
toxic cyanobacteria
waterblooms
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Summary:In the summer of 1980, waterblooms and scums of Microcystis aeruginosa, Oscillatoria agardhii and Gloeotrichia echinulata were collected at 11 locations. Acute toxicity of sonificated cyanobacterial suspensions was tested by i.p. injection in mice. The results indicate that in 9 out of 10 locations M. aeruginosa hepatotoxin(s) were present. These cyanobacterial endotoxin(s), the so-called Fast-Death Factor (FDF) or microcystin caused death in mice within 3 h. In most samples associated bacterial toxin(s), the so-called Slow-Death Factor (SDF) causing death within 4 to 48 h were possibly involved in SDF intoxication symptoms and mortality. Suspensions of O. agardhii were also found to be lethal. Symptoms and mortality are thought to be attributed to at least two toxic factors. One resembling FDF, the other possibly resulting from associating bacteria. Administration of G. echinulata suspensions did not kill mice but produced symptoms of illness. The symptoms were not consistent with those observed with Microcystis FDF or SDF.
ISSN:0166-445X
1879-1514
DOI:10.1016/0166-445X(83)90061-9