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Otolith as a tool to differentiate juveniles of two species Centropomidae

Carvalho, Barbara Maichak De; Bot Neto, Renato Luiz; Schwarz J��Nior, Roberto; Spach, Henry Louis; Volpedo, Alejandra Vanina

Pap��is Avulsos de Zoologia; Vol. 64 (2024); e202464007

Universidade de S��o Paulo (USP), Museu de Zoologia (MZUSP). 2024-02-05

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  • Título:
    Otolith as a tool to differentiate juveniles of two species Centropomidae
  • Autor: Carvalho, Barbara Maichak De; Bot Neto, Renato Luiz; Schwarz J��Nior, Roberto; Spach, Henry Louis; Volpedo, Alejandra Vanina
  • Assuntos: Common Snook; Swordspine Snook; Estuary; Use Habitat; River; Beach Seine Net
  • É parte de: Pap��is Avulsos de Zoologia; Vol. 64 (2024); e202464007
  • Descrição: Centropomus undecimalis and Centropomus ensifurus are a species belonging to the family Centropomidae, which has an important role in estuarine ecosystem. The present study aimed at comparing the otoliths shape of juveniles both species collected in in the lower S��o Francisco River (10��28���34.02���S, 36��24���27.02���W). In the laboratory, 52 otoliths were extracted, photographed, measured and the contour was analyzed by the wavelet method. The otolith contours varied between species (n��=��28 C.��ensiferus and n��=��24 C.��undecimalis). The Linear Discriminant Analysis correctly reclassified 92.3% of all otoliths among species. MANOVA also evidenced significant differences in contour between species (F��=��3.73; p��<��0.0001). The results suggest that C.��ensiferus is adapted to enviroments with higher turbidity and the C.��undecimalis tends to colonize environments with lower turbidity and spends more time in the water column.
  • DOI: 10.11606/1807-0205/2024.64.007
  • Títulos relacionados: https://www.revistas.usp.br/paz/article/view/215772/202688
  • Editor: Universidade de S��o Paulo (USP), Museu de Zoologia (MZUSP).
  • Data de criação/publicação: 2024-02-05
  • Formato: Adobe PDF
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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