Proportional Overlap of Posteriors for Arctic Charr and Brook Trout Ontogeny

A 5.5 KB Excel dataset by Glenn T. Schumacher, last updated May 15, 2026, contains Bayesian hierarchical linear regression results from an eye lens stable isotope analysis study. The research examined ontogenetic niche shifts in Arctic Charr and Brook Trout populations across four lakes in Maine, USA, to assess differential vulnerability to environmental change.

Use Cases

• Compare ontogenetic trophic patterns between Arctic Charr and Brook Trout based on stable isotope data.
• Analyze population-level variation in lifetime trophic position shifts using Bayesian posterior slope estimates.
• Investigate pelagic resource dependency through life stages in co-occurring salmonid species.
• Assess potential differential responses of fish life stages to climate variability for management planning.

Strengths

• Data is derived from a novel application of eye lens stable isotope analysis in freshwater fishes.
• Analysis uses Bayesian hierarchical linear regressions to model population-level ontogenetic shifts.
• Study compares two salmonid species across four distinct lake environments.

Limitations

• Dataset is very small at 5.5 KB, indicating limited scope.
• Row count and specific column-level documentation are unknown.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

figshare

Collection Method

Eye lens stable isotope analysis conducted on fish from four lakes.

Freshness

Last updated 2026-05-15 17:34:09

Geography

Four lakes in Maine, USA.