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Rev. biol. mar. oceanogr. 52(2): 399-404 http://dx.doi.org/10.4067/S0718-19572017000200019Research Note |
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First characterization of gastrointestinal culturable bacteria of Patagonian toothfish Dissostichus eleginoides (Nototheniidae) |
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Rocio Urtubia1, Pablo Gallardo1, César A. Cárdenas2, Paris Lavin2,3 and Marcelo González-Aravena2* |
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1Centro de Cultivos Marinos Bahía Laredo, Facultad de Ciencias, Universidad de Magallanes, Avda. Bulnes 01855, Punta Arenas, Chile
2Laboratorio de Biorrecursos Antárticos, Departamento Científico, Instituto Antártico Chileno, Plaza Muñoz Gamero 1055, Punta Arenas, Chile
3Present address: Laboratorio de Complejidad Microbiana y Ecología Funcional, Instituto Antofagasta, Universidad de Antofagasta, Chile
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The Patagonian toothfish Dissostichus eleginoides is one of the most important fisheries from the Southern Ocean. The biology of this species is relatively well studied and some nutritionals issues have also been reported; however there is no information about the composition of the bacterial community of the gastrointestinal tract, which is essential to characterize the microbiota of this fish. The bacterial flora of D. eleginoides is here described for the first time using culturable methods. By applying traditional culture-based techniques and 16S rDNA sequencing methods it was possible to characterize the families Vibronaceae and Moraxellaceae, which were mainly represented by Vibrio and Psychrobacter, respectively. This Patagonian fish shows a microbiota very similar to other cold waters fishes.
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Key words: Notothenioid, cold-water fish, subantarctic, Bacteria, 16S rRNA |
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