@article{fdi:010073134,
  title = {{H}igh contribution of the particulate uptake pathway to metal bioaccumulation in the tropical marine clam {G}afrarium pectinatum},
  author = {{H}edouin, {L}. and {M}etian, {M}. and {T}eyssie, {J}. {L}. and {F}ichez, {R}enaud and {W}arnau, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he clam {G}afrarium pectinatum was investigated to assess its usefulness as a bioindicator species of metal mining contamination in the {N}ew {C}aledonia lagoon. {T}he uptake and depuration kinetics of {A}g, {C}d, {C}o, {C}r, and {Z}n were determined following exposures via seawater, sediment, and food using highly sensitive radiotracer techniques ({A}g-110m, {C}d-109, {C}r-51, {C}o-57, and {Z}n-65). {W}hen the clams were exposed to dissolved metals, {C}o, {Z}n, and {A}g were readily incorporated in their tissues (concentration factors ({CF}) ranging from 181 to 4982 after 28 days of exposure) and all metals were strongly retained (biological half-lives always > 2 months). {T}he estimated transfer factor ({TF}) in clam tissues after a 35-day sediment exposure was 1 to 4 orders of magnitude lower than the estimated {CF}, indicating a lower bioavailability of sediment-bound metals than dissolved ones. {O}nce incorporated, metals taken up from sediment and seawater were retained longer than metals ingested with food, indicating that the uptake pathway influences the storage processes of metals in clam tissues. {C}ompilation of our data into a global bioaccumulation model indicated that, except for {A}g that essentially originated from food (92%), sediment was the main source of metal bioaccumulation in the clam (more than 80%). {T}hese results highlight that bioaccumulation processes strongly depend from one metal to the other. {T}he overall efficient bioaccumulation and retention capacities of the clam {G}. pectinatum confirm its usefulness as a bioindicator species that can provide time-integrated information about ambient contamination levels in the tropical marine coastal environment.},
  keywords = {{B}ioaccumulation ; {R}adiotracers ; {S}eafood ; {M}ining activities ; {T}ropical ; {NOUVELLE} {CALEDONIE} ; {NOUMEA}},
  booktitle = {},
  journal = {{E}nvironmental {S}cience and {P}ollution {R}esearch},
  volume = {25},
  numero = {12},
  pages = {11206--11218},
  ISSN = {0944-1344},
  year = {2018},
  DOI = {10.1007/s11356-017-8562-z},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073134},
}