Journal article
Morphological abnormalities in Chironomus tentans exposed to cadmium—and copper-spiked sediments
Ecotoxicology and environmental safety, Vol.55(2), pp.204-212
2003
Handle:
https://hdl.handle.net/2376/112244
PMID: 12742370
Abstract
The induction of mouthpart deformities and the developmental response with exposure to sediments spiked with three concentrations (9, 39, and 61
μg
g
−1 Cd dry wt.) of cadmium (Cd) and three concentrations (30, 125, and 215
μg
g
−1 Cu dry wt.) of copper (Cu) were investigated. Mouthpart deformity proportions in
Chironomus tentans larvae were compared between metal-spiked and control populations and between parent and offspring (F1) populations. Cd- and Cu-treated sediments induced deformities (low Cd=13%, medium Cd=7%, high Cd=4%, low Cu=6%, medium Cu=9%, high Cu=6%) at significantly higher proportions than control (3%) sediments. No negative developmental response was determined. Larval sizes in metal-treated aquaria and control aquaria were not significantly different. F1 larvae from parents reared in medium and high Cu had significantly lower deformity rates than their parents. Our research adds to the growing evidence implicating heavy metals in general, and Cd and Cu specifically, as teratogenic agents.
Metrics
2 Record Views
Details
- Title
- Morphological abnormalities in Chironomus tentans exposed to cadmium—and copper-spiked sediments
- Creators
- Edward A Martinez - Department of Environmental Studies, California State University, Sacramento, CA 95819-6001, USABarry C Moore - Department of Natural Resource Sciences, Washington State University, Pullman, WA 99164, USAJohn Schaumloffel - Department of Chemistry, State University of New York, Oneonta, NY 13820, USANairanjana Dasgupta - Statistics Program, Washington State University, Pullman, WA 99164, USA
- Publication Details
- Ecotoxicology and environmental safety, Vol.55(2), pp.204-212
- Academic Unit
- Mathematics and Statistics, Department of; Environment, School of the (CAHNRS)
- Publisher
- Elsevier Inc
- Identifiers
- 99900547305901842
- Language
- English
- Resource Type
- Journal article