@article{fdi:010087731,
  title = {{H}armful algae and pathogens on plastics in three {M}editerranean coastal lagoons},
  author = {{P}asqualini, {V}. and {G}arrido, {M}. and {C}ecchi, {P}hilippe and {C}onnes, {C}. and {C}oute, {A}. and {E}l {R}akwe, {M}. and {H}enry, {M}. and {H}ervio-{H}eath, {D}. and {Q}uilichini, {Y}. and {S}imonnet, {J}. and {R}innert, {E}. and {V}itre, {T}. and {G}algani, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}lastic is now a pervasive pollutant in all marine ecosystems. {T}he microplastics and macroplastic debris were studied in three {F}rench {M}editerranean coastal lagoons ({P}revost, {B}iguglia and {D}iana lagoons), displaying different environmental characteristics. {I}n addition, biofilm samples were analyzed over the seasons to quantify and identify microalgae communities colonizing macro -plastics, and determine potentially harmful microorganisms. {R}esults indicate low but highly variable concentrations of microplastics, in relation to the period and location of sampling. {M}icro -{R}aman spectroscopy analyses revealed that the majority of macroplastic debris corresponded to polyethylene ({PE}) and low-density polyethylene ({LDPE}), and to a far lesser extent to poly-propylene ({PP}). {T}he observations by {S}canning {E}lectron {M}icroscopy of microalgae communities colonizing macroplastic debris demonstrated differences depending on the seasons, with higher amounts in spring and summer, but without any variation between lagoons and polymers. {A}mong the {D}iatomophyceae, the most dominant genera were {A}mphora spp., {C}occoneis spp., and {N}avicula spp.. {C}yanobacteria and {D}inophyceae such as {P}rorocentrum cordatum, a potentially toxic species, were also found sporadically. {T}he use of {P}rimer specific {DNA} amplification tools enabled us to detect potentially harmful microorganisms colonizing plastics, such as {A}lexandrium minutum or {V}ibrio spp. {A}n additional in situ experiment performed over one year revealed an increase in the diversity of colonizing microalgae in relation to the duration of immersion for the three tested polymers {PE}, {LDPE} and polyethylene terephthalates ({PET}). {V}ibrio settled durably after two weeks of immersion, whatever the polymer. {T}his study confirms that {M}editerranean coastal lagoons are vulnerable to the presence of macroplastic debris that may passively host and transport various species, including some potentially harmful algal and bacterial microorganisms.},
  keywords = {{M}editerranean coastal lagoons ; {T}ransitional waters ; {M}icroplastics ; {M}acroplastics ; {C}olonizing microalgae ; {P}otentially harmful microorganisms ; {FRANCE} ; {ZONE} {MEDITERRANEENNE}},
  booktitle = {},
  journal = {{H}eliyon},
  volume = {9},
  numero = {3},
  pages = {e13654 [17 ]},
  year = {2023},
  DOI = {10.1016/j.heliyon.2023.e13654},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087731},
}