@article{fdi:010068893,
  title = {{A}ssociation of a specific algal group with methylmercury accumulation in periphyton of a tropical high-altitude {A}ndean lake},
  author = {{L}anza, {W}. {G}. and {A}cha, {D}. and {P}oint, {D}avid and {M}asbou, {J}. and {A}lanoca, {L}. and {A}mouroux, {D}. and {L}azzaro, {X}avier},
  editor = {},
  language = {{ENG}},
  abstract = {{P}eriphyton relevance for methylmercury ({M}e{H}g) production and accumulation are now well known in aquatic ecosystems. {S}ulfate-reducing bacteria and other microbial groups were identified as the main {M}e{H}g producers, but the effect of periphyton algae on the accumulation and transfer of {M}e{H}g to the food web remains little studied. {H}ere we investigated the role of specific groups of algae on {M}e{H}g accumulation in the periphyton of {S}choenoplectus californicus ssp. ({T}otora) and {M}yriophyllum sp. in {U}ru {U}ru, a tropical high-altitude {B}olivian lake with substantial fishing and mining activities accruing around it. {M}e{H}g concentrations were most strongly related to the cell abundance of the {C}hlorophyte genus {O}edogonium (r (2) = 0.783, p = 0.0126) and to no other specific genus despite the presence of other 34 genera identified. {M}e{H}g was also related to total chlorophyll-a (total algae) (r (2) = 0.675, p = 0.0459), but relations were more significant with chlorophyte cell numbers, chlorophyll-b (chlorophytes), and chlorophyll-c (diatoms and dinoflagellates) (r (2) = 0.72, p = 0.028, r (2) = 0.744, p = 0.0214, and r (2) = 0.766, p = 0.0161 respectively). {H}owever, {O}edogonium explains most variability of chlorophytes and chlorophyll-c (r (2) = 0.856, p = < 0.001 and r (2) = 0.619, p = 0.002, respectively), suggesting it is the most influential group for {M}e{H}g accumulation and periphyton algae composition at this particular location and given time.},
  keywords = {{BOLIVIE} ; {ANDES} ; {URU} {URU} {LAC}},
  booktitle = {},
  journal = {{A}rchives of {E}nvironmental {C}ontamination and {T}oxicology},
  volume = {72},
  numero = {1},
  pages = {1--10},
  ISSN = {0090-4341},
  year = {2017},
  DOI = {10.1007/s00244-016-0324-2},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068893},
}