This study profiled strontium isotope ratios across fish teeth from an Early Holocene site in southern Sweden with early evidence of fish fermentation. The profiles indicated three regions of origin and suggested that roach were caught during their autumn migration from the Baltic Sea.
Key numbers
- Strontium isotope ratios were measured in 16 cyprinid and 8 pike teeth (Abstract, p. 1).
- No exposure-relevant strontium concentrations are reported.
Methods (brief)
Teeth were profiled by laser ablation multi-collector ICP-MS, and the resulting isotope ratio profiles were compared with regional water and reference values.
Evidence fitness
Supports strontium isotope ratios as a tool for fish provenance and migration. It does not support exposure or toxicity statements.
Limitations
Archaeological isotope-ratio study; no concentrations or modern foods.
Related evidence
Update history
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