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The effect of pH on chronic zinc toxicity differs between daphnid species: Development of a preliminary chronic zinc Ceriodaphnia dubia bioavailability model.
Environ Toxicol Chem. 2017 10; 36(10):2750-2755.ET

Abstract

In the present study, we observed that the chronic Zn Daphnia magna biotic ligand model (BLM) could not accurately predict the chronic Zn toxicity to Ceriodaphnia dubia in a series of (modified) field waters, although the intrinsic sensitivities of the D. magna BLM were specifically calibrated on the sensitivity of C. dubia. Moreover, it was observed that the D. magna BLM underestimated the effect of pH on the toxicity of the free Zn2+ ion. A preliminary species-specific chronic Zn C. dubia bioavailability model was developed based on the data. The preliminary Zn C. dubia bioavailability model was shown to predict Zn toxicity to C. dubia in a series of natural waters with pH ranging between 7 and 8.3 with reasonable accuracy. The difference in the effect of pH on Zn2+ toxicity between D. magna and C. dubia (2 phylogenetically closely related species) suggested by our results deserves further attention because of the importance of the cross-species application of bioavailability models in ecological risk-assessment procedures and environmental quality standard derivations for metals. Environ Toxicol Chem 2017;36:2750-2755. © 2017 SETAC.

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Authors+Show Affiliations

Nys C
Laboratory of Environmental Toxicology and Aquatic Ecology, Universiteit Gent Campus Coupure, Gent, Belgium.
Janssen CR
Laboratory of Environmental Toxicology and Aquatic Ecology, Universiteit Gent Campus Coupure, Gent, Belgium.
De Schamphelaere KAC
Laboratory of Environmental Toxicology and Aquatic Ecology, Universiteit Gent Campus Coupure, Gent, Belgium.

MeSH

AnimalsCladoceraDaphniaHydrogen-Ion ConcentrationModels, BiologicalSpecies SpecificityToxicity Tests, ChronicWater Pollutants, ChemicalZinc

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28436057

Citation

Nys, Charlotte, et al. "The Effect of pH On Chronic Zinc Toxicity Differs Between Daphnid Species: Development of a Preliminary Chronic Zinc Ceriodaphnia Dubia Bioavailability Model." Environmental Toxicology and Chemistry, vol. 36, no. 10, 2017, pp. 2750-2755.
Nys C, Janssen CR, De Schamphelaere KAC. The effect of pH on chronic zinc toxicity differs between daphnid species: Development of a preliminary chronic zinc Ceriodaphnia dubia bioavailability model. Environ Toxicol Chem. 2017;36(10):2750-2755.
Nys, C., Janssen, C. R., & De Schamphelaere, K. A. C. (2017). The effect of pH on chronic zinc toxicity differs between daphnid species: Development of a preliminary chronic zinc Ceriodaphnia dubia bioavailability model. Environmental Toxicology and Chemistry, 36(10), 2750-2755. https://doi.org/10.1002/etc.3831
Nys C, Janssen CR, De Schamphelaere KAC. The Effect of pH On Chronic Zinc Toxicity Differs Between Daphnid Species: Development of a Preliminary Chronic Zinc Ceriodaphnia Dubia Bioavailability Model. Environ Toxicol Chem. 2017;36(10):2750-2755. PubMed PMID: 28436057.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effect of pH on chronic zinc toxicity differs between daphnid species: Development of a preliminary chronic zinc Ceriodaphnia dubia bioavailability model. AU - Nys,Charlotte, AU - Janssen,Colin R, AU - De Schamphelaere,Karel A C, Y1 - 2017/07/10/ PY - 2016/12/13/received PY - 2017/01/30/revised PY - 2017/04/21/accepted PY - 2017/4/25/pubmed PY - 2018/1/4/medline PY - 2017/4/25/entrez KW - Biotic ligand model (BLM) KW - Metal bioavailability KW - Metal toxicity KW - Risk assessment KW - Water quality criteria SP - 2750 EP - 2755 JF - Environmental toxicology and chemistry JO - Environ Toxicol Chem VL - 36 IS - 10 N2 - In the present study, we observed that the chronic Zn Daphnia magna biotic ligand model (BLM) could not accurately predict the chronic Zn toxicity to Ceriodaphnia dubia in a series of (modified) field waters, although the intrinsic sensitivities of the D. magna BLM were specifically calibrated on the sensitivity of C. dubia. Moreover, it was observed that the D. magna BLM underestimated the effect of pH on the toxicity of the free Zn2+ ion. A preliminary species-specific chronic Zn C. dubia bioavailability model was developed based on the data. The preliminary Zn C. dubia bioavailability model was shown to predict Zn toxicity to C. dubia in a series of natural waters with pH ranging between 7 and 8.3 with reasonable accuracy. The difference in the effect of pH on Zn2+ toxicity between D. magna and C. dubia (2 phylogenetically closely related species) suggested by our results deserves further attention because of the importance of the cross-species application of bioavailability models in ecological risk-assessment procedures and environmental quality standard derivations for metals. Environ Toxicol Chem 2017;36:2750-2755. © 2017 SETAC. SN - 1552-8618 UR - https://www.unboundmedicine.com/medline/citation/28436057/The_effect_of_pH_on_chronic_zinc_toxicity_differs_between_daphnid_species:_Development_of_a_preliminary_chronic_zinc_Ceriodaphnia_dubia_bioavailability_model_ L2 - https://doi.org/10.1002/etc.3831 DB - PRIME DP - Unbound Medicine ER -
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