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Delineating copper accumulation pathways for the freshwater bivalve Corbicula using stable copper isotopes

Dates

Year
2005

Citation

Croteau, Marie-Noéle, and Luoma, Samuel N, 2005, Delineating copper accumulation pathways for the freshwater bivalve Corbicula using stable copper isotopes: Environmental Toxicology and Chemistry, v. 24, iss. 11, p. 2871-2878 LA - en.

Summary

Delineation of metal uptake routes in aquatic invertebrates is critical for characterizing bioaccumulation dynamics and assessing risks associated with metal exposure. Here we demonstrate that Cu stable isotopic ratios can be manipulated in both exposure media and algae to determine the efflux rate constant (ke) and to estimate Cu assimilation efficiency (AE) from ingested food in a freshwater bivalve (Corbicula fluminea). The Cu AE in Corbicula fed 65Cu-spiked Cryptomonas ozolini was 38%. Copper uptake routes had no significant influence on efflux; ke of 0.004 per day characterized the slowest component of efflux following short-term exposures to 65Cu in water or in both food and water. Incorporation of the physiological parameters [...]

Contacts

Communities

  • USGS National Research Program

Tags

Provenance

Added to ScienceBase on Fri Apr 19 10:15:13 MDT 2013 by processing file <b>Mechanisms of biological and ecological response in disturbed aquatic ecosystems (Thompson::Brown:Cain:Carter:Fend:Hornberger:Stewart:Luoma).xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd338f">https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd338f</a>

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1897/04-608R.1

Citation Extension

journalEnvironmental Toxicology and Chemistry
parts
typePages
value2871-2878 LA - en
typeVolume
value24
typeIssue
value11
citationTypeJournal Article

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