@article{fdi:010079758,
  title = {{T}rophic ecology of a blooming jellyfish ({A}urelia coerulea) in a {M}editerranean coastal lagoon},
  author = {{M}arques, {R}. and {B}onnet, {D}. and {C}arr{\'e}, {C}laire and {R}oques, {C}. and {D}arnaude, {A}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he current lack of knowledge on the trophic ecology of scyphozoans, particularly at the benthic stage, prevents a full understanding of the controls on many jellyfish blooms. {T}he blooming scyphozoan ({A}urelia coerulea) completes its entire life cycle in the {T}hau lagoon (southern {F}rance), where the annual population dynamics of both its benthic and pelagic stages have been described. {T}his offered an exceptional framework to investigate the trophic processes regulating jellyfish populations over time. {T}o this aim, stable isotopic signature analysis (delta {C}-13 and delta {N}-15) was used to infer the diet of both {A}. coerulea scyphistomae and medusae over 1 year. {T}hese results were matched with medusae gut content analysis and with the monthly abundances of local plankton groups. {L}astly, the isotopic signatures of {A}. coerulea scyphistomae and medusae were compared with those of the oysters ({C}rassostrea gigas) cultivated in the lagoon to evaluate the potential interspecific trophic competition. {T}he results revealed two seasonal shifts in the trophic niche of{A}. coeruleaand substantial overlap between the diets of its benthic and pelagic stages. {C}onversely, trophic niche overlaps with the oysters were restricted, suggesting a limited impact of the local jellyfish bloom on shellfish production. {P}hytoplankton, microzooplankton, mesozooplankton, and sedimentary organic matter were all important food sources during critical periods of{A}. coerulealife-cycle. {H}owever, microzooplankton abundance was found to be key for the production of buds by the scyphistomae and, therefore it is likely to control the benthic population size and, thereby, to modulate the intensity of its annual bloom in {T}hau.},
  keywords = {{FRANCE} ; {MEDITERRANEE} ; {THAU} {ETANG}},
  booktitle = {},
  journal = {{L}imnology and {O}ceanography},
  volume = {66},
  numero = {1},
  pages = {141--157},
  ISSN = {0024-3590},
  year = {2021},
  DOI = {10.1002/lno.11593},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079758},
}