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  • 1
    Publication Date: 2021-05-19
    Description: Las especies Yersinia ruckeri y Edwardsiella sp. son patógenos de importancia económica por la alta morbiletalidad que provocan en la acuicultura. En este trabajo se analiza la frecuencia de aparición y el comportamiento epizootiológico de ambos patógenos en los peces de cultivo en Cuba, en diferentes regiones del país y en sistemas de cultivo extensivo en embalses e intensivo en estanques y jaulas flotantes, del 2006 al 2008. Del total de brotes analizados, estas especies se encontraron en 18 eventos epizoóticos, cuatro en el 2006, 12 en el 2007 y dos en el 2008. Edwardsiella sp. se aisló en 16 de ellos, mientras que Yersinia ruckeri se encontró en nueve. Las especies afectadas fueron Oreochromis sp., Clarias sp. y Micropterus salmoides floridanus. Estos resultados indican que ambos patógenos provocan enfermedadades con importantes pérdidas económicas en Cuba y afectan con más frecuencia a las especies en cultivo intensivo.
    Description: Within Enterobactereaceae family only Yersinia and Edwardsiella genus are considered as fishes pathogens. Yersinia ruckeri and Edwardsiella sp. are the most important pathogens for aquaculture because their high morbility. In this study the frequency of apparition and the epizotiologic behavior of these bacterias in different regions of Cuba and in extensive and intensive culture system during the years 2006-2008 were analized. From the total of the epizootiologic events, these pathogens were found in 18: four in 2006, 12 in 2007 and two in 2008. Edwardsiella species were isolated in 16 and Yersinia ruckeri in nine. The affected species were Oreochromis sp., Clarias sp. and Micropterus salmoides floridanus. These results indicate that both pathogens cause illness with important economic looses in Cuba and that they affect species in intensive culture more frequently.
    Description: Published
    Description: enterobacterias
    Description: Yersinia
    Description: Edwardsiella sp.
    Description: tilapia
    Description: clarias
    Keywords: Aquaculture economics ; Intensive aquaculture ; Fishes ; Morbidity
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2024-01-12
    Description: The Cerro de los Batallones (Los Batallones Butte) is located in the central-northern area of the Madrid Basin, central Spain. Nine vertebrates localities containing a large variety of mammals of Upper Vallesian Age (Late Miocene) have been found associated with the sediments forming the butte. From bottom to top, these sediments consist of magnesian lutite beds (Unit I), paleosols formed of sepiolite and opal (Unit II), and siliclastic, marlstone and carbonate beds (Unit III). The set of ERT profiles developed in Los Batallones Butte have demonstrate that electrical imaging techniques are an estimable tool for the characterization and prospecting of fossil sites developed in fine-grained siliciclastic sequences. These localities contain an exceptionally rich, varied and well-preserved vertebrate fauna together with invertebrate and plant fossils. Carnivore species are strikingly well represented at Batallones 1 and 3, and large herbivore species, such as mastodons, rhinoceros and giraffes, at Batallones 2, 4, 5 and 10. The taphonomical studies, together with the morphological features shown by the sedimentary fills of the mammal localities, permit an overall interpretation of these deposits as vertebrate traps. The study of these localities should offer a significant contribution to our understanding of the formation pattern of trap-like paleontological sites - which so far have been typically reported in karstic-type systems -, as well as an important source of paleobiological information about numerous vertebrate groups.
    Keywords: Mammalia ; miocene ; Cerro de los Batallones
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/bookPart
    Format: application/pdf
    Location Call Number Limitation Availability
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