@article{fdi:010087486,
  title = {{E}nvironmental history of one of the largest freshwater neotropical fish ({Z}ungaro jahu) from otolith isotopic analysis},
  author = {{A}vigliano, {E}. and {P}ouilly, {M}arc and {V}argas, {F}. and {P}enha, {J}. and {S}ilva, {N}. and {B}ouchez, {J}. and {S}anchez, {S}. and {V}olpedo, {A}. {V}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {M}anguruyu {Z}ungaro jahu, endemic to the {L}a {P}lata {B}asin, is one of the largest neotropical fish species whose life history is virtually unknown. {T}he objectives of this study were to determine if {Z}. jahu is a large-scale migratory species and to describe habitat use throughout ontogeny using the otolith {S}r isotope ({S}r-87/{S}r-86) ratio. {S}urface water samples were collected in 2020 at four sites representing the main water courses of the {G}reat {P}antanal in {B}razil (upper {P}araguay, {C}uiaba, {S}ao {L}ourenco and {V}ermelho rivers). {E}ighteen fish individuals were collected from the {P}arana {R}iver ({A}rgentina). {N}ew water {S}r-87/{S}r-86 data were incorporated into previously established statistical models to infer the fish habitat use through the otolith {S}r-87/{S}r-86 ratios. {T}he water {S}r-87/{S}r-86 ratio of the upper {P}araguay tributaries varied (0.7209 and 0.7229) and were the highest in the {L}a {P}lata {B}asin. {T}he dispersal area of {Z}. jahu was restricted to the surroundings of the confluence of the {P}arana and {P}araguay rivers. {F}ish showed chemical signatures compatible with those of the middle {P}arana (88%), {P}araguay-{P}ilcomayo-{B}ermejo (50%) and the lower/upper {P}arana (66%). {T}he discriminant analysis based on otolith core indicated natal origins from the middle {P}arana (37%), upper {P}arana (32%), and {P}araguay sub-basin (32%). {T}he dispersal area of {Z}. jahu migrations could be restricted to the surroundings of the confluence of {P}arana and {P}araguay, which highlights the need to review regional fishing regulations, especially between latitudes 30 degrees-34 degrees {S}.},
  keywords = {endangered fish ; {M}anguruyu ; natal origin ; otolith chemistry ; {ARGENTINE} ; {BRESIL} ; {PLATA} {BASSIN}},
  booktitle = {},
  journal = {{R}iver {R}esearch and {A}pplications},
  volume = {39},
  numero = {5},
  pages = {887--896},
  ISSN = {1535-1459},
  year = {2023},
  DOI = {10.1002/rra.4120},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087486},
}