@article{fdi:010080585,
  title = {{I}nfluence of ocean-lagoon exchanges on spatio-temporal variations of phytoplankton assemblage in an {A}tlantic {L}agoon ecosystem ({O}ualidia, {M}orocco)},
  author = {{S}omoue, {L}. and {D}emarcq, {H}erv{\'e} and {M}akaoui, {A}. and {H}ilmi, {K}. and {E}ttahiri, {O}. and {B}en {M}hamed, {A}. and {A}gouzouk, {A}. and {B}aibai, {T}. and {L}arissi, {J}. and {C}harib, {S}. and {K}almouni, {A}. and {L}aabir, {M}ohamed},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {O}ualidia {L}agoon is a semi enclosed marine ecosystem connected to the {A}tlantic {O}cean of {M}orocco and exposed to human activities, mainly agriculture and oyster farming. {T}he present study aims to characterize the spatio-temporal variation of the phytoplankton assemblage and to highlight the effect of the main environmental parameters on this important planktonic component evolving in a vulnerable anthropized ecosystem. {F}or this purpose, a field survey was carried out during four seasons in 2011 to determine the biotic (phytoplankton, chlorophyll a) and abiotic (temperature, salinity and nutrients) variables during low and high tide periods. {R}esults highlight an established spatial variation of physico-chemical parameters especially at low tide, with contrasted environmental conditions between the upstream and downstream zones. {T}he phytoplankton diversity and abundance were characterized by a pronounced seasonal pattern. {T}he {O}ualidia {L}agoon is a nutrient rich ecosystem, especially in its upstream part. {W}e also showed that both planktonic diversity and abundance were maximum in autumn and summer. {T}he phytoplankton richness is governed by two main factors: the seasonality of nutrient enrichment and the regular supply of {A}tlantic seawater. {N}itrate and ammonium were the main environmental abiotic factors determining the development of phytoplankton populations. {T}he dynamic of phytoplankton in the {O}ualidia {L}agoon is highly influenced by marine waters incoming from the {A}tlantic {O}cean especially during the upwelling season. {F}inally, potential harmful algal species belonging to different genera such as {P}seudo-nitzschia, {A}lexandrium, {P}rorocentrum, {D}inophysis, {O}streopsis, {K}arenia, {C}oolia, {G}onyaulax, {G}ymnodinium, {D}ictyocha and {C}hattonella were encountered showing a potential in this ecosystem to develop noxious blooms.},
  keywords = {{O}ualidia {L}agoon ; {P}hytoplankton ; {E}nvironmental factors ; {A}frican {A}tlantic coast ; {O}cean-{L}agoon exchange ; {MAROC} ; {ATLANTIQUE} ; {OUALIDIA} {LAGUNE}},
  booktitle = {},
  journal = {{R}egional {S}tudies in {M}arine {S}cience},
  volume = {40},
  numero = {},
  pages = {101512 [14 ]},
  ISSN = {2352-4855},
  year = {2020},
  DOI = {10.1016/j.rsma.2020.101512},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080585},
}