INVESTIGADORES
AVIGLIANO Esteban
artículos
Título:
Evidence of populations of Mugil curema in Southeastern Caribbean Sea? Otolith microchemistry as a potential method
Autor/es:
ESTEBAN AVIGLIANO; CALLICO FORTUNATO ROBERTA; JOAQUIN BUITRADO; ALEJANDRA VANINA VOLPEDO
Revista:
BRAZILIAN JOURNAL OF BIOLOGY
Editorial:
INT INST ECOLOGY
Referencias:
Lugar: SAO CARLOS, SP; Año: 2015 vol. 75 p. 45 - 51
ISSN:
1519-6984
Resumen:
The aim of the present study was to evaluate the potential use of otolith microchemistry (Sr:Ca y Ba:Ca ratios) to identify silver mullet,Mugil curema,populations inSoutheastern 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.
