Abstract
The life-tables of Daphnia obtusa surviving a 48 hours exposure to various hexavalent chromium concentrations have been used to assess whether or not the toxicant had affected demographic parameters. The statistical comparisons lead to the conclusion that even such a short exposure to a relatively low level of chromium reduces the life-span, delays the time of first reproduction, shortens the reproduction period, and decreases the brood size.
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Coniglio, L., Baudo, R. Life-tables of Daphnia obtusa (Kurz) surviving exposure to toxic concentrations of chromium. Hydrobiologia 188, 407–410 (1989). https://doi.org/10.1007/BF00027807
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DOI: https://doi.org/10.1007/BF00027807