@article{PAR00027576,
  title = {{R}esponses of phytoplankton and periphyton community structure to an anthropic eutrophication gradient in tropical high-altitude {L}ake {T}iticaca},
  author = {{L}anza, {W}. {G}. and {H}ern, {V}. {C}. and {A}ch, {D}. and {L}azzaro, {X}avier},
  editor = {},
  language = {{ENG}},
  abstract = {{E}utrophication is a global environmental problem in aquatic ecosystems, mainly caused by increased nutrient loads (nitrogen and phosphorus). {P}hytoplankton and periphyton responses to the nutrients increase and temporal variation may be related to mutual seeding and/or variable environmental constraints. {E}ach of these communities may be useful for characterizing and monitoring eutrophication processes. {H}owever, little information exists about the simultaneous responses or interactions between such communities during eutrophication, even less in high-altitude tropical lakes such as {L}ake {T}iticaca. {H}ere, we first established a eutrophication gradient with stable isotopes (delta 15{N} and delta 13{C}) and physicochemical variables in a shallow bay of {L}ake {T}iticaca. {L}ater, we analyzed the shifts in taxonomic and morphological forms of phytoplankton and periphyton colonizing the underwater stems of totora ({S}choenoplectus californicus ssp. tatora), an emergent aquatic macrophyte, along the eutrophication gradient. {T}here is a clear turnover (groups, genera, and morphological forms) in phytoplankton and periphyton and decreased biodiversity along the eutrophication gradient. {G}omphonema genus relative abundance increase with eutrophication in both communities, while {A}chnanthidium abundance decreases. {H}owever, other genera behave differently in each community, allowing for the identification of specific bioindicators of eutrophication for phytoplankton ({O}scillatoria, {S}pirogyra, and {E}uglena) and periphyton ({O}edogonium, {S}tigeoclonium, and {C}haracium). {T}hey share genus composition with some taxa showing similar behaviors, thus interactions between phytoplankton and periphyton may exist. {W}e also believe that each compartment can act as a seeding reservoir for the other, though remaining independent to some extent.},
  keywords = {{M}icroalgae ; {E}utrophication bioindicators ; {S}table isotopes ; {L}ake {T}iticaca},
  booktitle = {},
  journal = {{J}ournal of {G}reat {L}akes {R}esearch},
  volume = {50},
  numero = {2},
  pages = {102294 [ p.]},
  ISSN = {0380-1330},
  year = {2024},
  DOI = {10.1016/j.jglr.2024.102294},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00027576},
}