@article{fdi:010082700,
  title = {{P}hytoplankton characterization in a tropical tidal river impacted by a megacity : the case of the {S}aigon {R}iver ({S}outhern {V}ietnam)},
  author = {{N}guyen, {A}. {T}. and {D}ao, {T}. {S}. and {S}trady, {E}milie and {N}guyen, {T}. {T}. {N}. and {A}ime, {J}. and {G}ratiot, {N}icolas and {N}emery, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he spatiotemporal variation of phytoplankton and their relationship with environmental variables were analyzed in the {S}aigon {R}iver-a tropical river in {S}outhern {V}ietnam. {T}wo longitudinal profiles were conducted during dry and rainy season at 18 sampling sites covering more than 60 km long in the river. {B}esides, a bi-weekly monitoring conducted in the upstream, urban area ({H}o {C}hi {M}inh {C}ity-{HCMC}), and downstream of {S}aigon {R}iver was organized from {D}ecember 2016 to {N}ovember 2017. {T}he major phytoplankton were diatoms (e.g., {C}yclotella cf. meneghiniana, {L}eptocylindrus danicus, {A}ulacoseira granulata), cyanobacteria ({M}icrocystis spp., {R}aphidiopsis raciborskii, {P}seudanabaena sp.), and euglenoids ({T}rachelomonas volvocina). {C}ommonly freshwater phytoplankton species and sometimes brackish water species were dominant during the monitoring. {P}hytoplankton abundances in dry season were much higher than in rainy season (>100 times) which was explained by a shorter riverine water residence time and higher flushing capacity during the dry season. {T}here was a clear separation of phytoplankton abundance between the urban area and the remaining area of {S}aigon {R}iver because of polluted urban emissions of {HCMC}. {R}edundancy analysis shows that the environmental variables ({TOC}, nitrogen, p{H}, salinity, {M}o, {M}n) were the driving factors related to the dominance of {L}. danicus and {C}yclotella cf. meneghiniana in the upstream river and urban section of {S}aigon {R}iver. {T}he dominance of cyanobacterium {M}icrocystis spp. in the downstream of {S}aigon {R}iver was related to higher salinity, {M}g, {C}u concentrations, and lower concentrations of nutrients, {M}n, {C}o, and {M}o. {T}he dominance of potentially toxic cyanobacteria in {S}aigon {R}iver possesses health risk to local residents especially upon the increasing temperature context and nutrient loading into the river in the next decades.},
  keywords = {{C}yanobacteria ; {M}icroalgae ; {D}ominant species ; {E}utrophication ; {T}race metals ; {U}rbanization ; {VIET} {NAM} ; {ZONE} {TROPICALE} ; {SAIGON} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{E}nvironmental {S}cience and {P}ollution {R}esearch},
  volume = {29},
  numero = {3},
  pages = {4076--4092},
  ISSN = {0944-1344},
  year = {2022},
  DOI = {10.1007/s11356-021-15850-x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082700},
}