Accessibility navigation


Clonal variation in acetylcholinesterase biomarkers and life history traits following OP exposure in Daphnia magna

Printes, L. B., Fellowes, M. D. E. ORCID: https://orcid.org/0000-0001-5431-8637 and Callaghan, A. (2008) Clonal variation in acetylcholinesterase biomarkers and life history traits following OP exposure in Daphnia magna. Ecotoxicology and Environmental Safety, 71 (2). pp. 519-526. ISSN 0147-6513

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1016/j.ecoenv.2007.12.001

Abstract/Summary

Two clones of Daphnia magna (Standard and Ruth) were exposed for 7 days to sub-lethal concentrations of acephate (5.0 and 10.0 mg/L). Survivorship, individual growth, reproduction and the population growth rate (lambda) were evaluated over three weeks. Acetylcholinesterase (AChE) activity was measured on days 2, 7 and 21. Acephate exposure inhibited AChE activity but had no direct effect on life history (LH) traits. There was also no effect of clone on AChE activity, LH and lambda. However, a significant interaction between clone and acephate concentration was found on both fecundity and AChE inhibition at 48 h was associated with a decrease in lambda the Standard clone and an increase in lambda in clone Ruth. Therefore, our findings show that genotypic variation will influence the link between AChE activity and toxic effects at higher levels of biological organisation in D. magna. (c) 2007 Elsevier Inc. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Biological Sciences > Ecology and Evolutionary Biology
ID Code:9876
Uncontrolled Keywords:Daphnia magna, cholinesterase, life history traits, population growth, rate, organophosphates, CHIRONOMUS-RIPARIUS MEIGEN, BIOCHEMICAL BIOMARKERS, ECOTOXICOLOGY, INVERTEBRATES, HORMESIS, CHOLINESTERASE, INSECTICIDES, POPULATIONS, TOXICITY, DENSITY
Publisher:Elsevier

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation