Fisheries Engineering, Federal University of Ceará, Fortaleza, Ceará, Brazil.
*Corresponding address: Avenida Abolição, 3207, Meireles. Fortaleza-Ceará-Brasil. CEP 60165-081; e.mail - renata.albuq@gmail.com
1Estadual University of Vale do Acaraú, Sobral, Ceará, Brazil.
The objective of the present study was to identify and quantify vibrio species in a commercial culture of the marine shrimp species Litopenaeus vannamei in North-Eastern Brazil. Two culture cycles of Litopenaeus vannamei were followed on a shrimp farm in Ceará, Brazil, during 2005. The study variables included the number of saccharose-positive and negative colonies and species diversity. The 76 vibrio strains isolated from shrimp at different developmental stages belonged to 14 species: V. harveyi and V. cholerae prevailed among postlarvae; V. cholerae, V. anguillarum, V. alginolyticus and V. harveyi among juveniles; and V. parahaemolyticus, V. harveyi and V. anguillarum among adult specimens.
