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vol.66 número2PARAMETROS BIOLOGICO-PESQUEROS DE REINETA BRAMA AUSTRALIS VALENCIENNES 1837 EN LA ZONA DE PESCA DE LEBU (37°37'S.-73°40'W ), CHILEESTUDIO POBLACIONAL DEL RECURSO ANCHOVETA (ENGRAULIS RINGENS JENYNS 1842) (CLUPEIFORMES, ENGRAULIDAE), MEDIANTE ANALISIS DE ADN índice de autoresíndice de materiabúsqueda de artículos
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Gayana (Concepción)

versión impresa ISSN 0717-652Xversión On-line ISSN 0717-6538

Resumen

ESPINOZA, Pablo; GALLEGUILLOS, Ricardo  y  ASTETE, Sofia. ISOENZYME ANALYSIS IN BRAMA AUSTRALIS VALENCIENNES 1837 (PISCES, PERCIFORMES, BRAMIDAE) IN THE SOUTH CENTER ZONE OF CHILE. Gayana (Concepc.) [online]. 2002, vol.66, n.2, pp.237-242. ISSN 0717-652X.  http://dx.doi.org/10.4067/S0717-65382002000200021.

The pacific pomfret, Brama australis, is an epipelagic and mesopelagic fish and the distribution is from Coquimbo in the north to the Austral zone in the south. The main fisheries area are the V and VIII Región. We study the genetic variability in this species using starch gel electrophoresis of proteins. The samples com from Valparaíso (33°05'S; 71°40'W) and from Lebu (37°37'S; 73°40''`W). The results show that the heterozygosity is 11% when 12 presuntive loci are analized. The polymorphism is 25 %, similar to those reported in different species of marine fish. On the other hand, the statistical analysis of Fst and X2 test suggest that populations of Valparaíso and Lebu fit to Hardy-Weinberg equilibrium. The values of genetic identity (I = 0.996) and Nei genetic distance (D = 0,004) demonstrate not significative differences

Palabras clave : Brama australis; electrophoresis; variability; population genetics; genetics structure; heterozygosity.

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