@article{fdi:010083834,
  title = {{D}iscrimination of species and populations of the genus {C}ichla ({C}ichliformes : {C}ichlidae) in rivers of the {A}mazon basin using otolithic morphometry},
  author = {{M}ereles, {M}. {A}. and {S}ousa, {R}. {G}. {C}. and {B}arroco, {L}. {S}. {A}. and {C}ampos, {C}. {P}. and {P}ouilly, {M}arc and {F}reitas, {C}. {E}. {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he genus {C}ichla is a highly diverse group, with 16 species already described. {E}xternally, some species are very similar and discriminating between them may be very difficult. {N}evertheless, discrimination of fish stocks is essential for management purposes. {M}orphometric analyses of otoliths have been successfully used to distinguish species and fish stocks, especially in marine environments. {T}his study evaluated whether sagittal otolith shape can be used to discriminate among the species {C}ichla temensis, {C}. monoculus, and {C}. orinocensis, as well as within populations of {C}. temensis in rivers of the {A}mazon. {S}hape indices and {F}ourier coefficients were used to describe the shape of the otoliths. {A}mong the groups of species, the morphology of the sagittal otolith of {C}. temensis was totally distinct from the species {C}. monoculus and {C}. orinocensis. {W}hile among populations of {C}. temensis, individuals from the {N}egro and {J}atapu {R}ivers were different, regardless of the methods used. {T}hese results confirm the ability to differentiate species and populations by using the morphology of otoliths. {H}owever, more research is needed to verify the role of genetic versus environmental and biotic effects, and thus be able to explain the discrimination observed in otoliths.},
  keywords = {{A}mazonian rivers ; {F}ourier analysis ; {O}tolith ; {P}eacock bass ; {S}hape indices ; {BRESIL} ; {AMAZONE} {BASSIN} ; {NEGRO} {COURS} {D}'{EAU} ; {UATUMA} {COURS} {D}'{EAU} ; {JATAPU} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{N}eotropical {I}chthyology},
  volume = {19},
  numero = {4},
  pages = {e200149 [18 p.]},
  ISSN = {1679-6225},
  year = {2021},
  DOI = {10.1590/1982-0224-2020-0149},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083834},
}