@article{fdi:010088057,
  title = {{P}rokaryotic responses to estuarine coalescence contribute to planktonic community assembly in a {M}editerranean nutrient-rich estuary},
  author = {{N}avarro, {E}lisabeth and {S}antinelli, {C}. and {B}rogi, {S}. {R}. and {D}urrieu, {G}. and {R}adakovitch, {O}. and {G}arnier, {C}. and {M}isson, {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the marine coastal environment, freshwater and seawater coalescing communities are facing a complex set of abiotic and biotic cross-influences. {T}his study aimed at evaluating the respective influences of blending and prokaryotic dynamics on community structure. {F}or that, the surface salinity gradient of a nutrient-rich estuary ({A}rno {R}iver, {M}editerranean {S}ea, {I}taly) was sampled at regular salinity intervals. {W}hen considering the whole length of the estuary and community-scale beta diversity metrics, a relatively smooth transition from freshwater to the sea was observed. {A}biotic variability associated with salinity was the predominant constraint on the community structure, and the distribution of most taxa reflected their blending. {H}owever, while most of the dissolved substances enriched in freshwater experienced progressive dilution with seawater, heterotrophic prokaryotes demonstrated an important growth at intermediate salinity, interpreted as a heterotrophic assimilation of freshwater inputs by a few opportunistic marine taxa. {T}he distribution of a number of taxa was significantly affected by variations in heterotrophic prokaryotes abundance, suggesting a putative influence of competitive interactions at intermediate salinities. {A} succession of different bacterial winners was observed from upstream to downstream, as well as losers represented by freshwater copiotrophs accompanied by some marine oligotrophs. {H}ence, coalescence drove a localized but major functional response of heterotrophic bacteria at intermediate salinity, hidden behind a majority of passively mixed bacterial taxa. {T}his work paves the way for a stronger consideration of the trophic requirements of bacterial taxa to better understand community assembly in estuaries.},
  keywords = {prokaryotes ; community assembly ; coalescence ; estuary ; {M}editerranean {S}ea ; {MEDITERRANNEE} ; {ITALIE}},
  booktitle = {},
  journal = {{J}ournal of {M}arine {S}cience and {E}ngineering},
  volume = {11},
  numero = {5},
  pages = {933 [19 p.]},
  year = {2023},
  DOI = {10.3390/jmse11050933},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088057},
}