INVESTIGADORES
AVIGLIANO Esteban
artículos
Título:
Otolith edge fingerprints as approach for stock identification of Genidens barbus.
Autor/es:
ESTEBAN AVIGLIANO; BARBARA CARVALHO; MATHIEU LEISEN; RURIK ROMERO; GONZALO VELASCO; MARCELO VIANNA; FERNANDO BARRA PANTOJA; ALEJANDRA VANINA VOLPEDO
Revista:
ESTUARINE COASTAL AND SHELF SCIENCE
Editorial:
ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2017 vol. 194 p. 92 - 96
ISSN:
0272-7714
Resumen:
The purpose of this paperis to assess the use of multi-elemental otolith fingerprints as a tool todelimit catfish Genidens barbus fishstocks in four estuaries from the southwestern Atlantic Ocean. Barium:Calcium(Ca), Magnesium:Ca, Manganese:Ca, Sodium:Ca and Strontium:Ca ratios in theotolith edge were determined by LA-ICPMS. PERMANOVA analysis reveal significantdifferences in the multi-element signatures among estuaries (p=0.0001-0.002). Reclassificationrates of quadratic discriminantanalysis are high, averaging 89.9 % (78-100%). The new datapresented here show that the otolith chemistry is a potential tool for stockidentification, and indicates the presence of at least four stocks which shouldprobably be handled independently.
