@article{fdi:010073022,
  title = {{S}easonal variability of picophytoplankton under contrasting environments in northern {T}unisian coasts, southwestern {M}editerranean {S}ea},
  author = {{S}alhi, {N}. and {T}riki, {H}. {Z}. and {M}olinero, {J}. {C}. and {L}aabir, {M}ohamed and {S}ehli, {E}. and {B}ellaaj-{Z}ouari, {A}. and {Y}ahia, {N}. {D}. and {Y}ahia, {O}. {K}. {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e investigated at the single cell level during 16 months ({J}une 2012 to {S}eptember 2013) the temporal distribution of picophytoplankton (picoeukaryotes, {S}ynechococcus and {P}rochlorococcus) communities in two contrasted ecosystems: the {B}ay of {B}izerte characterised by an oligotrophic regime typical of the {M}editerranean {S}ea and the {B}izerte {L}agoon that exhibits a mesotrophic/eutrophic state. {W}e aimed at depicting seasonal variations and quantifying the relationships between the environmental factors and the structure and abundance of picophytoplankton communities. {R}esults showed that picophytoplankton groups were able to grow under a wide range of environmental conditions varying seasonally, although their abundances and contributions to the total chlorophyll biomass significantly varied and showed importance in the {B}ay of {B}izerte. {S}ynechococcus was the most abundant group reaching 225 * 10(3) cells.cm(-3) in the {B}ay and 278 * 10(3) cells.cm(-3) in the lagoon. {T}his group was present all over the year in both ecosystems. {S}tructural equation model results pointed out a different configuration regarding the picophytoplankton environmental drivers. {T}he complexity of the configuration, i.e. number of significant links within the system, decreased under enhanced eutrophication conditions. {T}he less exposure to anthropogenic stress, i.e. in the {B}ay of {B}izerte, highlight a larger role of nutrient and hydrological conditions on the seasonal variations of picophytoplankton, whereas a negative effect of eutrophication on picophytoplankton communities was unveiled in the {B}izerte {L}agoon. {W}e stress that such influence may be exacerbated under expected scenarios of {M}editerranean warming conditions and nutrient release in coastal ecosystems.},
  keywords = {{P}icophytoplankton ; {P}rochlorococcus ; {S}ynechococcus ; {E}utrophication ; {B}ay of {B}izerte ; {L}agoon of {B}izerte ; {MEDITERRANEE} ; {TUNISIE} ; {BIZERTE}},
  booktitle = {},
  journal = {{M}arine {P}ollution {B}ulletin},
  volume = {129},
  numero = {2},
  pages = {866--874},
  ISSN = {0025-326{X}},
  year = {2018},
  DOI = {10.1016/j.marpolbul.2017.10.029},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073022},
}