Journal
AUSTRALASIAN JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 30, Issue 1, Pages 127-140Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14486563.2022.2151521
Keywords
Artificial mussels; live mussel; Velesunio ambiguus; biomonitoring; heavy metal contamination; freshwater
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This study examines the feasibility of using artificial mussels as a replacement for live mussels in monitoring heavy metals in aquatic systems. The results show that artificial mussels do not show preference in metal accumulation and can be a reliable tool for assessing heavy metal risks.
In the last few decades, biomonitors especially live mussels (LM) have been commonly used to monitor heavy metals in aquatic systems worldwide. This study examined the feasibility of replacing the use of live biomonitors with artificial mussels (AM) in monitoring heavy metals. Laboratory experiments were conducted to compare metal accumulation in the freshwater mussel, Velesunio ambiguus (live mussels or LM) with that of AM exposed to varying concentrations of copper, lead and zinc over a 28-day period. Furthermore, field studies were carried out to compare metal accumulation in V. ambiguous at three sites with a range of different levels of metal contamination in regional Victorian waterways, Australia. Our results showed that LM showed preferential uptake of metal, whereas AM showed no preference in the accumulation of heavy metals. Artificial mussels are a reliable tool for assessing risks posed by heavy metals in waterways (fresh, brackish or marine) since the accumulation of heavy metals in AM is not affected by biotic and abiotic factors. We concluded that AM can be an effective and excellent replacement for live biomonitors such as native mussels in monitoring heavy metals in freshwater systems.
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