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Acute Toxicity Tests with Cadmium, Lead, Sodium Dodecyl Sulfate, and Bacillus thuringiensis on a Temporary Pond Ostracod
Author(s) -
AguilarAlberola Josep A.,
MesquitaJoanes Francesc
Publication year - 2012
Publication title -
international review of hydrobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 1434-2944
DOI - 10.1002/iroh.201211497
Subject(s) - bacillus thuringiensis , bioassay , acute toxicity , cadmium , toxicity , biology , pollutant , crustacean , sodium dodecyl sulfate , environmental chemistry , spore , ecotoxicology , toxicology , ecology , chemistry , bacteria , microbiology and biotechnology , biochemistry , genetics , organic chemistry
A complete assessment of effects of pollutants in the environment requires the use of a wide assemblage of test organisms. Crustaceans have been widely used in aquatic environments, but within this group, ostracods have been overlooked, even though they are one of the commonest groups of animals in temporary waters. Within this framework, static acute toxicity bioassays were conducted with heavy metals Cd and Pb, the surfactant SDS and spores of the bacteria Bacillus thuringiensis var. israeliensis using adult parthenogenetic females of the temporary pond ostracod Heterocypris bosniaca . Experiments were run at 20 °C and in a 12 by 12 h photoperiod. The toxicity tests results are expressed as LC 50 and EC 50 at 48 h and 96 h using probit analysis. The sensitivity of H. bosniaca at 48 h decreased in the following order Cd > Pb > SDS > Bti , while Pb and SDS exchanged their positions at 96 h. Comparison of the LC 50 values for this species with information available in the literature reveals that it is generally more resistant than other crustaceans. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)