@article{fdi:010083833,
  title = {{O}ntogenetic change in the diet of {S}emaprochilodus insignis ({C}haraciformes : {P}rochilodontidae) during migration between two limnologically distinct environments in the {A}mazon {B}asin},
  author = {{S}oares, {N}. {N}. and {D}e{H}art, {P}. {A}. {P}. and {M}arshall, {B}. {G}. and {P}ouilly, {M}arc and {O}liveira, {A}. {C}. {B}. and {B}ussons, {M}. {R}. {F}. {M}. and {F}reitas, {C}. {E}. {C}. and {Y}amamoto, {K}. {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}emaprochilodus insignis is an {A}mazonian migratory fish species, moving in large shoals between white- and black-water rivers. {I}t has long been classified as a detritivorous fish. {H}owever, it is possible that the trophic plasticity of {S}. insignis could be higher than previously assumed. {T}he objective of this study was to investigate the relative contributions of autotrophic energy sources to the diet of {S}. insignis in the {N}egro and {S}olimaes rivers and to determine if the species undergoes an ontogenetic change in the diet. {W}e found variations between the delta {C}-13 and delta {N}-15 values of {S}. insignis between the rivers. {I}n the {N}egro {R}iver, periphyton (84%) was the principal energy source for adults, while juveniles in the {S}olimaes {R}iver foraged predominantly on terrestrial plants/{C}-3 macrophytes (50%) and phytoplankton (42%). {T}hese variations in isotopic signatures are likely associated with migratory movements of {S}. insignis at different life stages and hydrological periods. {I}nstead of the previously assumed dietary classification, we suggest that {S}. insignis varies its diet ontogenetically, with adults acting as illiophagous in black-water while the young are detritivorous in white-water rivers. {T}he results show that this species creates complex links between food chains, thus emphasizing the importance of conserving flooded areas.},
  keywords = {{A}utotrophic sources ; {I}lliophagous ; {N}egro {R}iver ; {S}olimaes {R}iver ; {S}table isotopes ; {BRESIL} ; {AMAZONAS} ; {AMAZONE} {BASSIN} ; {RIO} {NEGRO} ; {SOLIMOES} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{N}eotropical {I}chthyology},
  volume = {19},
  numero = {4},
  pages = {e190134 [16 p.]},
  ISSN = {1679-6225},
  year = {2021},
  DOI = {10.1590/1982-0224-2019-0134},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083833},
}