@article{PAR00019878,
  title = {{D}iversity and toxic potential of algal bloom-forming species from {T}akaroa lagoon ({T}uamotu, {F}rench {P}olynesia) : a field and mesocosm study},
  author = {{R}odier, {M}artine and {L}ongo, {S}. and {H}enry, {K}. and {U}ng, {A}. and {L}o-{Y}at, {A}. and {D}arius, {H}. {T}. and {V}iallon, {J}. and {B}eker, {B}. and {D}elesalles, {B}. and {C}hinain, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}earl farming lagoons are economically important, yet poorly studied ecosystems in {F}rench {P}olynesia. {T}his paper describes a study conducted in 2016 in {T}akaroa ({T}uamotu {A}rchipelago), an atoll recurrently affected by harmful algal bloom ({HAB}) events. {T}he objectives were to gain insight into phytoplankton community composition, identify the main bloom-forming species and investigate their potential for toxicity. {A} mesocosm approach was used to assess the response of phytoplankton communities to 3 nutrient treatments: {C}onway with {S}i, {S}i-depleted f/2 and a commercial {N}-{P} fertilizer. {I}n total, 87 morpho-species were described from {T}akaroa lagoon, with dinoflagellates as the most diverse group. {D}iatoms ({E}xtubocellulus sp., {C}ylindrotheca closterium, {N}itzschia spp.), dinoflagellates ({G}ymnodinium spp., {H}eterocapsa spp.) and flagellates ({C}ryptomonas sp., {P}yraminonas spp.) were among the major bloom-forming species identified. {M}ost markedly, {E}xtubocellulus sp., a diatom never reported from {F}rench {P}olynesia before, was able to bloom even in {S}i-poor environments. {A}dditionally, in vitro cultures of 12 bloom-forming strains were successfully established and tested for their toxicity. {P}reliminary results suggest that 9 strains, including dinoflagellates ({P}rorocentrum lima, {A}mphidinium spp., {H}eterocapsa sp.), {P}yraminonadales ({P}yramimonas sp.) and cryptophytes ({C}ryptomonas sp.), are the likely producers of cyclic imine neurotoxins and toxins acting on voltage-gated sodium channels. {T}he contribution of these toxins to the mortality events previously reported in {T}akaroa lagoon is further discussed. {O}verall, this study highlights the relevance of a mesocosm approach which can be applied to other understudied atolls of {F}rench {P}olynesia recurrently threatened by {HAB}s.},
  keywords = {{P}hytoplankton ; {T}axonomy ; {M}esocosm ; {B}loom-forming species ; {T}oxicity ; {F}rench {P}olynesian lagoons ; {POLYNESIE} {FRANCAISE} ; {TUAMOTU} ; {TAKAROA} {LAGON}},
  booktitle = {},
  journal = {{A}quatic {M}icrobial {E}cology},
  volume = {83},
  numero = {1},
  pages = {15--34},
  ISSN = {0948-3055},
  year = {2019},
  DOI = {10.3354/ame01900},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00019878},
}