Single Metal Toxicity to Antarctic Microalgae Cryothecomonas armigera

Three bioassays assess the toxicity of copper, cadmium, lead, zinc, and nickel to the Antarctic marine microalga Cryothecomonas armigera. Tests were conducted at 0°C over 23-24 days, measuring growth rates and cellular parameters like chlorophyll fluorescence and lipid content. The dataset, last updated in 2016, originates from the Australian Antarctic Data Centre.

Use Cases

• Modeling dose-response relationships for heavy metals based on measured dissolved metal concentrations.
• Analyzing changes in algal cellular parameters like chlorophyll fluorescence and lipid content under metal stress.
• Comparing the relative toxicity of copper, cadmium, lead, zinc, and nickel to a polar microalgal species.
• Studying the effects of controlled environmental conditions (0°C, specific light cycles) on toxicity outcomes.

Strengths

• Includes results from 3 distinct bioassays with detailed methodological descriptions.
• Measures multiple endpoints: growth rate, chlorophyll a fluorescence, cell size, complexity, and neutral lipids.
• Tests five different metals (copper, cadmium, lead, zinc, nickel) under controlled Antarctic-like conditions.

Limitations

• Last updated 2016-02-29 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

AU_AADC (Australian Antarctic Data Centre)

Collection Method

Laboratory bioassays with flow cytometry and inductively coupled plasma-atomic emission spectrometry analysis.

Time Range

Experimental period not specified; metadata updated 2016.

Freshness

Last updated 2016-02-29 23:59:59.999000

Geography

Antarctic marine environment (test organisms from Antarctica, experiments likely conducted in a controlled lab setting).