@article{fdi:010085957,
  title = {{R}ole of estuarine habitats for the feeding ecology of the {E}uropean eel ({A}nguilla anguilla {L}.)},
  author = {{D}enis, {J}. and {R}abhi, {K}. and {L}e {L}oc'h, {F}ran{\c{c}}ois and {L}asram, {F}. {B}. and {B}outin, {K}. and {K}azour, {M}. and {D}iop, {M}. and {G}ruselle, {M}. {C}. and {A}mara, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study aims to characterize and compare the feeding ecology of the {E}uropean eels ({A}nguilla anguilla {L}.) during the continental phase (i.e. yellow and silver) along a salinity gradient (i.e. lower, middle and upper) in six northern {F}rance estuaries (i.e. brackish water). {T}he diet and stable isotopic (i.e. delta {N}-15 and delta {C}-13 values) compositions of eels collected with a fyke net in six estuaries ({S}lack, {W}imereux, {L}iane, {C}anche, {A}uthie and {S}omme estuaries) located along the {F}rench coast of the eastern {E}nglish {C}hannel per season over a year were described by combining gut content and stable isotope analyses. {E}el guts were dominated by typical {BW} prey, {M}alacostraca and {A}ctinopterygii (54% and 40%, respectively), with the gammare {G}ammarus zaddachi and the green crab {C}arcinus maenas (38% and 14%, respectively), and smaller yellow eels of {A}. anguilla and juvenile {E}uropean flounder, {P}latichthys flesus (19% and 14%, respectively) being the most frequently found in their guts. {T}he delta {C}-13 values of a majority of eels confirmed the sea- and brackish water-specific carbon resources. {D}ietary and isotopic niche revealed no clear change between total length, silvering stages and seasons, but a significant difference between salinity gradients and estuaries. {E}els delta {C}-13 values showed significant enrichment from upper to lower along the estuaries while the delta {N}-15 values showed an inverse effect, with the lowest values in the lower part and highest in the upper part. {H}igher variability in delta {C}-13 values in larger estuaries suggested that eels feed on a wide range of food sources than in smaller estuaries. {W}hile eels in the smaller estuaries fed mainly on {A}ctinopterygii prey, eels in the larger ones had a lower trophic level (i.e. delta {N}-15 values) and fed mainly on {M}alacostraca prey. {T}his spatial difference in dietary and isotopic niche is discussed in relation to biological structure of eel and environmental variables.},
  keywords = {{FRANCE} ; {MANCHE} ; {SLACK} {ESTUAIRE} ; {WIMEREUX} {ESTUAIRE} ; {LIANE} {ESTUAIRE} ; {CANCHE} {ESTUAIRE} ; {AUTHIE} {ESTUAIRE} ; {SOMME} {ESTUAIRE}},
  booktitle = {},
  journal = {{PL}o{S} {O}ne},
  volume = {17},
  numero = {7},
  pages = {[23 p.]},
  ISSN = {1932-6203},
  year = {2022},
  DOI = {10.1371/journal.pone.0270348},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085957},
}