A study investigated background levels and uptake rates of organophilic metals, particularly selenium, in ten streams draining portions of the Yukon-Tanana Terrane and Cassiar Platform between Ross River and Watson Lake, Yukon. Water, sediments, benthic invertebrates, and fish (slimy sculpin) were sampled and analyzed for metals concentrations, and benthic invertebrate community composition was documented. The findings provide baseline information on natural metals concentrations in an aquatic system of interest for mineral exploration.
Use Cases
- Establishing site-specific selenium guidelines for aquatic system management based on measured concentrations in water and sediments.
- Analyzing uptake pathways for selenium in aquatic ecosystems based on relationships between concentrations in fish, invertebrates, water, and sediments.
- Documenting benthic invertebrate community composition in fast-flowing, high-quality streams for ecological baseline studies.
- Comparing natural background metals concentrations to levels at active mines like Kudz Ze Kayah and Brewery Creek.
Strengths
- Sampled four distinct media types: water, sediments, benthic invertebrates, and fish (slimy sculpin).
- Benthic invertebrates were identified to genus and percent composition per stream was calculated.
- Study area covers ten streams in a region suspected of elevated natural metals concentrations, providing localized baseline data.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to the specific ten streams studied in the Yukon.
Provenance
- Source
- Government of Yukon
- Collection Method
- Field sampling and laboratory analysis of water, sediments, benthic invertebrates, and fish.
- Freshness
- Last updated 2026-04-17 16:02:00.989685; freshness should be verified.
- Geography
- Ten streams between Ross River and Watson Lake, Yukon, draining portions of the Yukon-Tanana Terrane and Cassiar Platform.