Determination of the cause of mortality in a giant freshwater prawn Macrobrachium rosenbergii nursery in Costa Rica: case analysis
This paper presents the findings obtained from a series of analyzes carried out for a freshwater prawn maturation of Macrobrachium rosenbergii in Costa Rica. A large larval production centre had recurrent abortions of gravid females, as well as high mortality in larval and post-larval stages. The results indicate that increases in the presence of organic matter in the water of the tanks caused high prevalence of ectoparasites in the ovigerous masses, as well as high bacterial counts in the water column. This condition generated bacterial and parasitic infections in larvae with severe reduction in production.
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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
2018
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oai:ojs.csi.unmsm:article-145222018-12-21T14:58:48Z Determination of the cause of mortality in a giant freshwater prawn Macrobrachium rosenbergii nursery in Costa Rica: case analysis Determinación de la causa de mortalidad en un vivero del langostino gigante de agua dulce Macrobrachium rosenbergii en Costa Rica: análisis de caso Varela Mejías, Alexander Valverde Moya, José langostinos de agua dulce materia orgánica parásitos mortalidad fresh water prawns organic matter parasites mortality This paper presents the findings obtained from a series of analyzes carried out for a freshwater prawn maturation of Macrobrachium rosenbergii in Costa Rica. A large larval production centre had recurrent abortions of gravid females, as well as high mortality in larval and post-larval stages. The results indicate that increases in the presence of organic matter in the water of the tanks caused high prevalence of ectoparasites in the ovigerous masses, as well as high bacterial counts in the water column. This condition generated bacterial and parasitic infections in larvae with severe reduction in production. Se presentan los hallazgos obtenidos de una serie de análisis realizados para un laboratorio de maduración de langostinos de agua dulce de Macrobrachium rosenbergii en Costa Rica. En este centro de producción larval se presentaron abortos recurrentes de hembras grávidas, así como gran mortalidad en los estadios de larvas y pos-larvas. Los resultados indican que incrementos en la presencia de materia orgánica en el agua de los tanques causaron altas prevalencias de ectoparásitos en las masas ovígeras, así como elevados conteos bacteriales en la columna de agua. Esta condición generó cuadros de bacteriosis y parasitosis en las larvas con severas reducciones en la producción. Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2018-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article application/pdf text/html https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/14522 10.15381/rivep.v29i2.14522 Revista de Investigaciones Veterinarias del Perú; Vol. 29 No. 2 (2018); 666-675 Revista de Investigaciones Veterinarias del Perú; Vol. 29 Núm. 2 (2018); 666-675 1682-3419 1609-9117 spa https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/14522/12848 https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/14522/13968 Derechos de autor 2018 Alexander Varela Mejías, José Valverde Moya https://creativecommons.org/licenses/by-nc-sa/4.0 |
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| author |
Varela Mejías, Alexander Valverde Moya, José |
| spellingShingle |
Varela Mejías, Alexander Valverde Moya, José Determination of the cause of mortality in a giant freshwater prawn Macrobrachium rosenbergii nursery in Costa Rica: case analysis |
| author_facet |
Varela Mejías, Alexander Valverde Moya, José |
| author_sort |
Varela Mejías, Alexander |
| title |
Determination of the cause of mortality in a giant freshwater prawn Macrobrachium rosenbergii nursery in Costa Rica: case analysis |
| title_short |
Determination of the cause of mortality in a giant freshwater prawn Macrobrachium rosenbergii nursery in Costa Rica: case analysis |
| title_full |
Determination of the cause of mortality in a giant freshwater prawn Macrobrachium rosenbergii nursery in Costa Rica: case analysis |
| title_fullStr |
Determination of the cause of mortality in a giant freshwater prawn Macrobrachium rosenbergii nursery in Costa Rica: case analysis |
| title_full_unstemmed |
Determination of the cause of mortality in a giant freshwater prawn Macrobrachium rosenbergii nursery in Costa Rica: case analysis |
| title_sort |
determination of the cause of mortality in a giant freshwater prawn macrobrachium rosenbergii nursery in costa rica: case analysis |
| description |
This paper presents the findings obtained from a series of analyzes carried out for a freshwater prawn maturation of Macrobrachium rosenbergii in Costa Rica. A large larval production centre had recurrent abortions of gravid females, as well as high mortality in larval and post-larval stages. The results indicate that increases in the presence of organic matter in the water of the tanks caused high prevalence of ectoparasites in the ovigerous masses, as well as high bacterial counts in the water column. This condition generated bacterial and parasitic infections in larvae with severe reduction in production. |
| publisher |
Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria |
| publishDate |
2018 |
| url |
https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/14522 |
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