INVESTIGADORES
VOLPEDO Alejandra Vanina
artículos
Título:
Is otolith microchemistry (Sr:Ca and Ba:Ca ratios) useful to identify Mugil curema populations in the Southeastern Caribbean Sea?
Autor/es:
AVIGLIANO E; CALLICÓ FORTUNATO R; BUITRAGO, J; VOLPEDO A. V.
Revista:
BRAZILIAN JOURNAL OF BIOLOGY
Editorial:
INT INST ECOLOGY
Referencias:
Lugar: SAO CARLOS, SP; Año: 2015 vol. 76 p. 1 - 12
ISSN:
1519-6984
Resumen:
The aim of the present study was to evaluate the potential use of otolithmicrochemistry (Sr:Ca y Ba:Ca ratios) to identify silver mullet, Mugil curema, populations in Southeastern Caribbean Sea. Fish samples were collected in 7 areas of Nueva Esparta State (Venezuela). The otolith Sr:Ca and Ba:Ca ratios and water Sr:Ca were determined (by ICP OES and EDTA volumetric method). Otoliths Sr:Ca and Ba:Ca ratios and Sr:Ca partition coefficient of mullets in Cubagua island (south of the State) were significantly different from ratios in La Guardia (north of the State). A discriminant analysis of otolith Sr:Ca and Ba:Ca ratios separated Cubagua Island from La Guardia values. These results suggest the existence of different mullet groups in the Southeastern Caribbean Sea. For this, the simultaneous use of Sr:Ca and Ba:Ca ratios could be a potential tool to identify populations in the study area.
