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Volume 45 - Number 3 - 2010
Nota Científica

 


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-Iriarte1


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

 

E-mail: firiarte@mdp.edu.ar

 

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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