@article{fdi:010081505,
  title = {{C}hemical forms of mercury in blue marlin billfish : implications for human exposure},
  author = {{M}anceau, {A}. and {A}zemard, {S}. and {H}edouin, {L}. and {V}assileva, {E}. and {L}ecchini, {D}. and {F}auvelot, {C}{\'e}cile and {S}warzenski, {P}. {W}. and {G}latzel, {P}. and {B}ustamante, {P}. and {M}etian, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}lthough fish is an important source of nutrients, including some of the healthiest proteins, long-chain fatty acids, and essential selenium, species at the top of the food chain frequently contain large amounts of toxic mercury ({H}g). {T}he provisional tolerable weekly intake ({PTWI}) of {H}g from fish consumption is calculated from the total concentration of {H}g and assuming that all {H}g is speciated as organic methylmercury ({M}e{H}g). {U}sing high energy-resolution {X}-ray absorption near-edge structure ({HR}-{XANES}) spectroscopy, we show that blue marlin ({M}akaira sp.), a common top predator consumed by humans, contains high concentrations of inorganic {H}g({II}) complexed as 57 +/- 10% {H}g-tetraselenolate [{H}g({S}ec)(4)] and 43 +/- 10% tiemannite ({H}g{S}e). {T}he stable {H}g-{S}e chemical bond likely attenuates the bioavailability of {H}g and counteracts some of its health hazards to consumers. {T}hus, monitoring the concentration of {M}e{H}g, rather than total {H}g, in top predators such as marlin would provide a more robust measure of potential {H}g exposure and may be sufficient for food safety controls. {T}he bonding of {H}g atoms to four selenocysteine ({S}ec) residues in the {H}g({S}ec)(4) complex severely depletes the stock of bioavailable {S}e, and quantification shows that blue marlin is not a chief source of dietary {S}e essential to selenoenzyme synthesis and activity.},
  keywords = {{POLYNESIE} {FRANCAISE} ; {MOOREA}},
  booktitle = {},
  journal = {{E}nvironmental {S}cience and {T}echnology {L}etters},
  volume = {8},
  numero = {5},
  pages = {405--411},
  ISSN = {2328-8930},
  year = {2021},
  DOI = {10.1021/acs.estlett.1c00217},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081505},
}