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April 16, 2026Environmental Monitoring and AssessmentOpen Access

Differential mercury accumulation and links to blood mercury levels across feather types in a long-lived seabird

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Authors

JBJustine BertramEGElias GarsiCBCoraline Bichet

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Overview

Analysis of mercury levels across feather types in seabirds reveals links to blood mercury levels, suggesting age influences accumulation.

Key Points

  • To investigate how mercury accumulation differs among feather types and correlates with blood mercury levels in seabirds.
  • Collected feather samples from over 200 common terns, including dorsal, ventral, primary, and tail feathers.
  • Blood samples were collected from a subset of individuals to assess mercury levels.
  • Conducted longitudinal analysis of 313 dorsal feather samples to examine age-related mercury differences.
  • Mercury levels were significantly correlated among feather types within individual seabirds.
  • Dorsal and ventral feathers showed a correlation with blood mercury levels during the breeding season.
  • Older seabirds had higher mercury levels in most feather types, except for tail feathers.

Cite This Study

Bertram et al. (2026) studied this question.

synapsesocial.com/papers/69e07e992f7e8953b7cbf6edhttps://doi.org/10.1007/s10661-026-15310-4
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