@article{fdi:010078952,
  title = {{P}opulation dynamics and predatory impact of the alien jellyfish {A}urelia solida ({C}nidaria, {S}cyphozoa) in the {B}izerte {L}agoon (southwestern {M}editerranean {S}ea)},
  author = {{G}ueroun, {S}. {K}. {M}. and {M}olinero, {J}uan-{C}arlos and {P}iraino, {S}. and {D}aly {Y}ahia, {M}. {N}.},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding the life cycle strategies and predatory impact of alien jellyfish species is critical to mitigate the impact that these organisms may have on local populations, biodiversity, and ultimately on the functioning of food webs. {I}n the {M}editerranean {S}ea, little is known about the dynamics of alien jellyfish, despite this biodiversity hotspot being one of the most threatened areas by increasing numbers of alien jellyfish. {H}ere, we investigated the population dynamics and predatory impact of a non-indigenous scyphomedusa, {A}urelia solida {B}rowne 1905, in the {B}izerte {L}agoon, {T}unisia. {T}he study was based on bimonthly surveys performed over two consecutive years, from {N}ovember 2012 to {A}ugust 2014. {F}ield observations showed that the planktonic phase of {A}. solida occurs from winter to early summer. {P}rey composition was investigated by means of gut content and field zooplankton analyses. {C}alanoid copepods, mollusc larvae, and larvaceans represented the main food items of {A}. solida. {T}o determine the jellyfish feeding rate and their predatory impact on zooplankton populations, the digestion time for zooplankton prey was assessed at three different temperatures: 13, 18, and 23 degrees {C} in laboratory conditions, corresponding to the average range of temperatures encountered by {A}. solida in the {B}izerte {L}agoon. {W}e found that {A}. solida consumed 0.5-22.5% and 0.02-37.3% of the daily zooplankton standing stock in 2013 and 2014, respectively. {T}hese results indicate a non-negligible but restricted seasonal grazing impact on some mesozooplankton groups, explained by the relatively short lifespan of the medusa stage (5-6 months).},
  keywords = {{S}cyphomedusae ; abundance ; predation ; mesozooplankton ; {SW} {M}editerranean ; {MEDITERRANEE} ; {TUNISIE} ; {BIZERTE} {LAGON}},
  booktitle = {},
  journal = {{M}editerranean {M}arine {S}cience},
  volume = {21},
  numero = {1},
  pages = {22--35},
  ISSN = {1108-393{X}},
  year = {2020},
  DOI = {10.12681/mms.17358},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078952},
}