Volumen 45 - Número 3: 513-517 | 2010
Research Note 

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Morphometric and genetic assessment of the Cynoscion guatucupa population structure from Buenos Aires coast, Argentine Sea

David E. Sabadin¹, Mariano González-Castro², Celia Iudica³, Juan M. Díaz de Astarloa² and Pedro J. Fernández-Iriarte^1*

¹Laboratorio de Genética, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3250, 7600 Mar del Plata, Argentina, CONICET

²Laboratorio de Ictiología, Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3250, 7600 Mar del Plata, Argentina, CONICET

³Asociación de Genética Humana, Colón 3853 (7600), Mar del Plata, Argentina 

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This study analyzed the morphometric, microsatellite loci and mitochondrial control region variation of the striped weakfish from two feeding and spawning grounds in the coastal area of Buenos Aires province. The characterization of the body shape proved to be different between sites. Genetic structure analysis showed that the main source of genetic variation was within populations rather than among populations and low genetic differentiation was observed between sites. The striped weakfish inhabiting the coastal areas of Buenos Aires would exhibit two management units in agreement with other fishes studied in both areas. 

Key words: Genetic structure, body shape, microsatellites, conservation

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