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Susceptibility of four geographical strains of adult Artemia to Ptychodiscus brevis toxin(s)
Medlyn, R.A. (1980). Susceptibility of four geographical strains of adult Artemia to Ptychodiscus brevis toxin(s), in: Persoone, G. et al. The brine shrimp Artemia: Proceedings of the International Symposium on the brine shrimp Artemia salina, Corpus Christi, Texas, USA, August 20-23, 1979: 1. Morphology, genetics, radiobiology, toxicology. pp. 225-231
In: Persoone, G. et al. (1980). The brine shrimp Artemia: Proceedings of the International Symposium on the brine shrimp Artemia salina, Corpus Christi, Texas, USA, August 20-23, 1979: 1. Morphology, genetics, radiobiology, toxicology. Universa Press: Wetteren. 318 pp., more
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Keywords
    Bioassay
    Materials > Hazardous materials > Biological poisons
    Red tides
    Artemia Leach, 1819 [WoRMS]; Ptychodiscus brevis (C.C.Davis) K.A.Steidinger, 1979 [WoRMS]
    Marine/Coastal
Author  Top 
  • Medlyn, R.A.
Abstract
    Four strains of the brine shrimp, Artemia were used as the bioassay organism to detect concentrations of Ptychodiscus brevis toxin(s) in culture media. P. brevis is the unarmored dinoflagellate responsible for Florida red tides. The four strains indicated differential susceptibility to the extracted crude toxin(s) as demonstrated by LD50 values ranging from 5.1 µg/ml (ppm) to 9.4 µg/ml. Statistical analyses of linear regressions indicated no significant differences between replicates. Shark Bay strain had the lowest LD50 (highest sensitivity) and was the easiest to raise. The bioassay procedure is suggested as a standard method for determining P. brevis toxin(s) in water.
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