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Preliminary analysis of the genetic variability of two natural beds of the Scallop Euvola ziczac (Linnaeus, 1758) in Brazil BABT
Wangüemert,Mercedes Gonzalez; Pezzuto,Paulo Ricardo; Borzone,Carlos Alberto.
Euvola ziczac (formerly Pecten ziczac), a simultaneous hermaphroditic scallop was heavily fished in Brazil between 1972 and 1980. The production peaked in 1980 with 8,800 tons and was followed by the total collapse of the resource. In order to investigate the possible loss of genetic variability of the stock associated to overfishing and self-fertilization, the polymorphism of phosphoglucomutase (PGM) and glucose phosphate isomerase (GPI) was analyzed by electrophoresis of the adductor muscle of scallops from São Francisco (26° 20.583’S; 48° 16.507’W) and Bom Abrigo (25° 28.735’S; 47° 37.621’W) beds; the southern and northern extremes of the scallop fishing ground, respectively. Animals from São Francisco showed a strong deficiency of heterozygosity for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic variability; Stock depletion; Scallop; Euvolaziczac; Brazil.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000200014
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