ISOMOVE: Antarctic Fur Seal Stable Isotopes and Tracking Data from Three Colonies

Stable isotope and tracking data from adult female Antarctic fur seals collected at three breeding colonies across the Southern Ocean between 2008 and 2018. The dataset includes bulk stable isotopes (δ¹³C, δ¹⁵N) and compound-specific amino acid isotope data from blood and whiskers, alongside geolocation-derived tracking and environmental variables. It was aggregated by the Australian Ocean Data Network and last updated in June 2026.

Use Cases

• Modeling trophic position and foraging habitat based on compound-specific amino acid isotope data (δ¹⁵NAA).
• Reconstructing multi-year dietary histories based on sequential isotopic analysis of whisker sections.
• Analyzing winter migration routes and environmental associations based on light-based geolocation (GLS) tracking data.
• Investigating spatial and temporal variation in seal ecology across three distinct breeding colonies.

Strengths

• Data spans a decade (2008–2018) and three geographically distinct breeding colonies.
• Includes multi-temporal scale data: blood isotopes integrate 2–3 months, while whisker sections provide multi-year records.
• Combines trophic ecology data (stable isotopes) with movement and environmental data (GLS tracking, SST, ADT).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified; last update was 2026-06-05 06:46:31.678777.

Provenance

Source

Australian Ocean Data Network

Collection Method

Samples collected from captured adult female seals; data includes laboratory isotope analysis and light-based geolocation tracking.

Time Range

2008–2018

Freshness

Last updated 2026-06-05 06:46:31.678777; freshness should be verified.

Geography

Southern Ocean breeding colonies: Marion Island, Bird Island (South Georgia), Cape Shirreff (South Shetland Islands).