@article{fdi:010072414,
  title = {{E}ffects of copper and butyltin compounds on the growth, photosynthetic activity and toxin production of two {HAB} dinoflagellates : the planktonic {A}lexandrium catenella and the benthic {O}streopsis cf. ovata},
  author = {{C}ouet, {D}ouglas and {P}ringault, {O}livier and {B}ancon-{M}ontigny, {C}. and {B}riant, {N}. and {P}oulichet, {F}. {E}. and {D}elpoux, {S}. and {Y}ahia, {O}. {K}. {D}. and {H}ela, {B}. and {C}haraf, {M}. and {H}erve, {F}. and {R}ovillon, {G}. and {A}mzil, {Z}. and {L}aabir, {M}ohamed},
  editor = {},
  language = {{ENG}},
  abstract = {{C}ontrolled laboratory experiments were conducted to test the effects of copper ({C}u2+) and butyltins ({B}u{T}) on the growth, photosynthetic activity and toxin content of two {HAB}s ({H}armful {A}lgal {B}looms) dinoflagellates, the planktonic {A}lexandrium catenella and the benthic {O}streopsis cf. ovata. {M}icroalgae were exposed to increasing concentrations of {C}u2+ (10(-4) to 31 n{M}) or {B}u{T} (0.084 to 84 n{M}) for seven days. {W}hen considering the growth, {EC}50 values were 0.16 (+/- 0.09) n{M} and 0.03 (+/- 0.02) n{M} of {C}u2+ for {A}. catenella and {O}. cf. ovata, respectively. {R}egarding {B}u{T}, {EC}50 was 14.2 (+/- 6) n{M} for {O}. cf. ovata, while {A}. catenella growth inhibition appeared at {B}u{T} concentrations >= 27 n{M}. {P}hotosynthetic activity of the studied dinoflagellates decreased with increasing {C}u and {B}u{T} concentrations. {F}or {O}. cf. ovata, the response of this physiological parameter to contamination was less sensitive than the biomass. {C}u exposure induced the formation of temporary cysts in both organisms that could resist adverse conditions. {T}he ovatoxin-a and-b concentrations in {O}. cf. ovata cells increased significantly in the presence of {C}u. {A}ltogether, the results suggest a better tolerance of the planktonic {A}. catenella to {C}u and {B}u{T}. {T}his could result in a differentiated selection pressure exerted by these metals on phytoplankton species in highly polluted waters. {T}he over-production of toxins in response to {C}u stress could pose supplementary health and socio-economic threats in the contaminated marine ecosystems where {HAB}s develop.},
  keywords = {{A}lexandrium catenella ; {O}streopsis cf. ovata ; {C}u ; {B}utyltin ; {P}hotosynthesis ; {T}oxins ; {MEDITERRANEE} ; {TUNISIE} ; {BIZERTE}},
  booktitle = {},
  journal = {{A}quatic {T}oxicology},
  volume = {196},
  numero = {},
  pages = {154--167},
  ISSN = {0166-445{X}},
  year = {2018},
  DOI = {10.1016/j.aquatox.2018.01.005},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072414},
}