Mercury Bioaccumulation in Mangrove Oysters (Crassostrea rhizophorae) (Guilding, 1828) and Associated Human Exposure from the Parnaiba River Delta, Equatorial Coast of Brazil.

ABSTRACT: The present study quantifies mercury (Hg) concentrations in mangrove oysters (Crassostrea rhizophorae) and assesses their potential as biomonitors of Hg contamination in the Parnaíba River Delta (PRD), located on the equatorial coast of Brazil (ECB). The highest Hg concentrations occurred in the smallest individuals' size class (20-40 mm) from the main channel of the Parnaíba River (52.1 to 195.4 ng g-1 w.w.), whereas the largest individuals' size class (larger than 60 mm) exhibited the lowest Hg concentrations (35.2-114 ng g-1 w.w.). There was a significant correlation between Hg concentrations and shell sizes, either when considering all size classes or when considering only individuals of size classes smaller than 40 mm. Oysters larger than 40 mm did not present any significant correlat

SUBMITTER: Luz-Santos TT 

PROVIDER: S-EPMC12390040 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature