Document of bibliographic reference 128688

BibliographicReference record

Type
Bibliographic resource
Type of document
Journal article
BibLvlCode
AS
Title
Development of a chronic zinc biotic ligand model for Daphnia magna
Abstract
The individual effects of the cations Ca2+, Mg2+, Na+, and H+ on the chronic toxicity of Zn to the waterflea Daphnia magna were investigated in different series of univariate experiments, resulting in the development of a chronic Zn biotic ligand model (BLM) for this species. Using the mathematical approach based on a linear relationship between cation activity and metal activity at the ECx level, the following stability constants for binding of competing cations to the biotic ligand (BL) were derived: log KCaBL = 3.22, log KMgBL = 2.69, log KNaBL = 1.90, and log KHBL = 5.77. With the derived constants and a log KZnBL of 5.31, two different BLMs that predict chronic zinc toxicity (EC50, no observed effect concentration (NOEC)) for D. magna as a function of water characteristics were developed. Fractions of binding sites occupied by Zn at the considered effect levels EC50 and NOEC were 0.127 and 0.084, respectively. The NOEC-based model predicts the Zn toxicity within a factor of 2, while the chronic EC50 could be predicted within a factor of 1.5. In the future, these chronic Zn BLMs for D. magna can improve the ecological relevancy of zinc risk assessments by decreasing the bioavailability-related uncertainty of zinc toxicity.
WebOfScience code
https://www.webofscience.com/wos/woscc/full-record/WOS:000230511100001
Bibliographic citation
Heijerick, D.G.; De Schamphelaere, K.A.C.; Van Sprang, P.A.; Janssen, C.R. (2005). Development of a chronic zinc biotic ligand model for Daphnia magna. Ecotoxicol. Environ. Saf. 62(1): 1-10. https://dx.doi.org/10.1016/j.ecoenv.2005.03.020
Topic
Fresh water
Is peer reviewed
true

Authors

author
author
Name
Karel De Schamphelaere
Identifier
https://orcid.org/0000-0002-5063-922X
author
author
Name
Colin Janssen
Identifier
https://orcid.org/0000-0002-7781-6679

Links

referenced creativework
type
DOI
accessURL
https://dx.doi.org/10.1016/j.ecoenv.2005.03.020

thesaurus terms

term
100 year floods (term code: 78110 - defined in term set: CSA Technology Research Database Master Thesaurus)
Bioavailability (term code: 73891 - defined in term set: CSA Technology Research Database Master Thesaurus)
Ecotoxicology (term code: 9505 - defined in term set: ASFA Thesaurus List)
Environment (term code: 95793 - defined in term set: Transportation Research Thesaurus)
Heavy metals (term code: 99939 - defined in term set: Transportation Research Thesaurus)
Ligands (term code: 4711 - defined in term set: ASFA Thesaurus List)
Models (term code: 79214 - defined in term set: CSA Technology Research Database Master Thesaurus)
Risk analysis (term code: 85221 - defined in term set: CSA Technology Research Database Master Thesaurus)
Toxicity (term code: 85524 - defined in term set: CSA Technology Research Database Master Thesaurus)
Zinc (term code: 9427 - defined in term set: ASFA Thesaurus List)

Other terms

other terms associated with this publication
Chronic

taxonomic terms

taxonomic terms associated with this publication
Arthropoda [Arthropods]
Branchiopoda [branchiopods]
Cladocera
Crustacea [crustaceans]
Daphnia magna
Invertebrata

Document metadata

date created
2009-01-21
date modified
2020-10-29