Evaluation of zebra mussels (Dreissena polymorpha) as biomonitors of mercury contamination in aquatic ecosystems

Bradley D. Blackwell, Charles T Driscoll, Michael E. Spada, Svetoslava Todorova, Mario R. Montesdeoca

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Zebra mussels have invaded many lakes in the United States and could be a useful tool for monitoring responses of aquatic biota to changes in mercury loading. The goal of the present study was to evaluate zebra mussels for use as a biomonitor of mercury contamination by comparing zebra mussel mercury concentrations between a lake with only indirect atmospheric mercury contamination (Otisco Lake, NY, USA) and a lake that was directly contaminated by mercury discharges (Onondaga Lake, NY, USA). Zebra mussels were sampled in both the spring and fall of 2004 and 2005. Total mercury (THg) concentrations in zebra mussels were approximately seven times greater in Onondaga Lake than in Otisco Lake, and water column mercury concentrations differed by an order of magnitude between the two lakes. Seasonal differences resulted in significantly higher zebra mussel THg concentrations during the fall for both lakes. There was also significant variation among different sampling sites in Onondaga Lake. Mussel methylmercury concentrations averaged 53% of THg concentrations but were highly variable. Strong relationships between water column THg and zebra mussel THg suggest that zebra mussels are a good indicator of aquatic mercury concentrations and could be used as an effective biomonitor of mercury contamination in aquatic ecosystems.

Original languageEnglish (US)
Pages (from-to)638-643
Number of pages6
JournalEnvironmental Toxicology and Chemistry
Volume32
Issue number3
DOIs
StatePublished - Mar 2013

Fingerprint

Dreissena
Aquatic ecosystems
Environmental Monitoring
Lakes
Mercury
aquatic ecosystem
Ecosystem
Contamination
lake
water column
evaluation
mercury contamination
Biota
Water
Bivalvia
methylmercury
mercury
biota

Keywords

  • Biomonitoring
  • Mercury
  • Methylmercury
  • Mussels

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Environmental Chemistry

Cite this

Evaluation of zebra mussels (Dreissena polymorpha) as biomonitors of mercury contamination in aquatic ecosystems. / Blackwell, Bradley D.; Driscoll, Charles T; Spada, Michael E.; Todorova, Svetoslava; Montesdeoca, Mario R.

In: Environmental Toxicology and Chemistry, Vol. 32, No. 3, 03.2013, p. 638-643.

Research output: Contribution to journalArticle

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