@article{fdi:010070063,
  title = {{C}hemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western {I}ndian and south-eastern {A}tlantic {O}ceans : trophic influence and potential as tracers of populations},
  author = {{C}houvelon, {T}. and {B}rach-{P}apa, {C}. and {A}uger, {D}. and {B}odin, {N}athalie and {B}ruzac, {S}. and {C}rochet, {S}. and {D}egroote, {M}. and {H}ollanda, {S}. {J}. and {H}ubert, {C}. and {K}noery, {J}. and {M}unschy, {C}. and {P}uech, {A}. and {R}ozuel, {E}. and {T}homas, {B}. and {W}est, {W}. and {B}ourjea, {J}. and {N}ikolic, {N}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}lbacore tuna ({T}hunnus alalunga) is a highly commercial fish species harvested in the world's {O}ceans. {I}dentifying the potential links between populations is one of the key tools that can improve the current management across fisheries areas. {I}n addition to characterising populations' contamination state, chemical compounds can help refine foraging areas, individual flows and populations' structure, especially when combined with other intrinsic biogeochemical (trophic) markers such as carbon and nitrogen stable isotopes. {T}his study investigated the bioaccumulation of seven selected trace metals - chromium, nickel, copper ({C}u), zinc ({Z}n), cadmium ({C}d), mercury ({H}g) and lead - in the muscle of 443 albacore tunas, collected over two seasons and/or years in the western {I}ndian {O}cean ({WIO}: {R}eunion {I}sland and {S}eychelles) and in the south-eastern {A}tlantic {O}cean ({SEAO}: {S}outh {A}frica). {T}he main factor that explained metal concentration variability was the geographic origin of fish, rather than the size and the sex of individuals, or the season/year of sampling. {T}he elements {C}u, {Z}n, {C}d and {H}g indicated a segregation of the geographic groups most clearly. {F}or similar sized-individuals, tunas from {SEAO} had significantly higher concentrations in {C}u, {Z}n and {C}d, but lower {H}g concentrations than those from {WIO}. {I}nformation inferred from the analysis of trophic markers (delta {C}-13, delta {N}-15) and selected persistent organic pollutants, as well as information on stomach contents, corroborated the geographical differences obtained by trace metals. {I}t also highlighted the influence of trophic ecology on metal bioaccumulation. {F}inally, this study evidenced the potential of metals and chemical contaminants in general as tracers, by segregating groups of individuals using different food webs or habitats, to better understand spatial connectivity at the population scale. {L}imited flows of individuals between the {SEAO} and the {WIO} are suggested. {A}lbacore as predatory fish also provided some information on environmental and food web chemical contamination in the different study areas.},
  keywords = {{T}op predator ; {B}ioaccumulation ; {I}norganic elements ; {O}rganic contaminants ; {S}table isotopes ; {I}ntrinsic markers ; {OCEAN} {INDIEN} ; {ATLANTIQUE} {SUD} {EST}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {596},
  numero = {},
  pages = {481--495},
  ISSN = {0048-9697},
  year = {2017},
  DOI = {10.1016/j.scitotenv.2017.04.048},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070063},
}