Experimental data compares copper uptake and physiological responses in two marine fish species, the clear nosed skate (Raja erinacea) and the sculpin (Myoxocephalus octodecemspinosus), during controlled exposure to elevated water-borne copper for up to seven days. The study was conducted by SCIOPS, measuring gill copper concentrations, plasma ammonia levels, and Na+/K+-ATPase activity across multiple tissues. It investigates osmoregulatory disturbance as a primary toxic mechanism of copper in marine elasmobranchs and teleosts.
Use Cases
- Model the relationship between water-borne copper concentration (mM) and gill copper accumulation fold-change for skate versus sculpin.
- Analyze plasma total ammonia (T_amm) levels over time as an indicator of copper-induced metabolic disturbance.
- Compare Na+/K+-ATPase activity in gill, rectal gland, and intestine tissues between control and exposed groups to assess osmoregulatory impact.
- Correlate kidney and liver copper concentrations with exposure duration and species to understand internal copper distribution.
Strengths
- Direct comparison of two distinct fish classes (elasmobranch and teleost) under identical exposure conditions.
- Multiple physiological endpoints measured, including tissue-specific metal concentrations and enzyme activities.
Limitations
- Sample size and exact row count are unknown, limiting statistical power assessment.
- Temporal coverage is limited to a short-term exposure of up to seven days.
- Geographic scope is restricted to a single location (Salisbury Cove seawater).
Provenance
- Source
- SCIOPS via NASA Earthdata.
- Collection Method
- Controlled laboratory exposure experiment with measured copper concentrations in seawater.
- Time Range
- Exposure duration up to seven days.
- Geography
- Salisbury Cove seawater.