@article{fdi:010079434,
  title = {{C}oncomitant changes in the environment and small pelagic fish community of the {G}ulf of {L}ions},
  author = {{F}euilloley, {G}. and {F}romentin, {J}. {M}. and {S}temmann, {L}. and {D}emarcq, {H}erv{\'e} and {E}stournel, {C}. and {S}araux, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}n important decrease in small pelagic fish condition and size has been observed in the most productive ecosystem of the {M}editerranean {S}ea, the {G}ulf of {L}ions, since 2008, leading to an important fishery crisis. {P}revious studies suggested bottom-up control to be the most probable cause for these changes. {H}ere, we investigate whether an environmental change might have caused such a situation. {I}n the absence of zooplankton time series, this study aims at describing temporal changes in key abiotic factors for the planktonic and fish production of the {G}ulf of {L}ions, such as {SST}, meso-scale fronts, wind-induced coastal upwelling, river discharge, water stratification and deep convection and then at understanding potential link on {C}hl-a concentration as well as small pelagic fish populations. {O}ur results indicate that the environmental conditions have broadly changed in the {G}ulf of {L}ion, with a major change in the mid-2000s, affecting the {C}hla concentration (which showed a regime shift in 2007), but also the {SST}, the upwelling and frontal activities, the {R}hone river discharge (and particularly the {N} and {P} nutrients inputs) as well as the deep winter convection. {T}hose changes could have affected the plankton production and consequently the small pelagic fish community that displayed similar patterns of variations as the environmental conditions.},
  keywords = {{E}nvironmental change ; {B}ottom-up control ; {C}hlorophyll-a ; {S}mall pelagic fish ; {N}orthwestern {M}editerranean {S}ea ; {MEDITERRANEE} ; {LION} {GOLFE}},
  booktitle = {},
  journal = {{P}rogress in {O}ceanography},
  volume = {186},
  numero = {},
  pages = {art. 102375 [12 ]},
  ISSN = {0079-6611},
  year = {2020},
  DOI = {10.1016/j.pocean.2020.102375},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079434},
}