The Ross Sea region of Antarctica is the source for this dataset of stable isotope ratios for carbon and nitrogen. It includes measurements from Antarctic krill, ice krill, and chick carcasses of Adelie and Emperor penguins collected during the 2018-2019 ARAON cruise. The data were produced by AMD_KOPRI using isotope ratio mass spectrometry.
Use Cases
- Analyze penguin diet composition based on stable isotope ratios.
- Compare trophic levels between Adelie and Emperor penguins.
- Study krill species distribution and isotopic signatures in the Ross Sea.
- Investigate marine ecosystem dynamics using carbon and nitrogen isotope data.
Strengths
- Includes samples from four specific Antarctic locations: Cape Hallett, Inexpressible Island, Cape Washington, and Coulman Island.
- Provides separate analyses for carbon and nitrogen isotopes from pretreated and untreated samples.
- Data collection occurred during a defined research cruise (ARAON) in 2018-2019.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Last updated 2019-04-16 23:59:59.999000; freshness should be verified.
Provenance
- Source
- AMD_KOPRI
- Collection Method
- Samples collected during the ARAON cruise and analyzed using EA-IRMS.
- Time Range
- 2018-2019
- Geography
- Western Ross Sea, Antarctica (Cape Hallett, Inexpressible Island, Cape Washington, Coulman Island)