Digenean parasites of Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) from the lower Uruguay River, downstream Salto Grande dam, Uruguay

Seventy six specimens of Cyphocharax platanus were collected downstream Salto Grande dam, lower Uruguay River, Uruguay, between August 2012 and June 2013 and examined for digenean parasites. Three digenean taxa were identified: Saccocoelioides spp. (Haploporidae), Zonocotyle bicaecata (Zonocotylidae...

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Detalles Bibliográficos
Autores principales: VENZAL, José M., CASTRO, Oscar, SOSA, Nicolás, FÉLIX, María L, LEITES, Valentín, MENONI, Federico, VIGIL, José D
Formato: Artículo revista
Lenguaje:Español
Publicado: Universidad Nacional del Litoral 2016
Materias:
Cyphocharax platanus
parasites
Digenea
Uruguay river
Salto Grande dam
parásitos
Río Uruguay
Presa Salto Grande
Acceso en línea:https://bibliotecavirtual.unl.edu.ar/publicaciones/index.php/FAVEveterinaria/article/view/6130
Aporte de:
Biblioteca Virtual - Publicaciones (UNL) de Universidad Nacional del Litoral
id I26-R133-article-6130
record_format ojs
institution Universidad Nacional del Litoral
institution_str I-26
repository_str R-133
container_title_str Biblioteca Virtual - Publicaciones (UNL)
language Español
format Artículo revista
topic Cyphocharax platanus
parasites
Digenea
Uruguay river
Salto Grande dam
Cyphocharax platanus
parásitos
Digenea
Río Uruguay
Presa Salto Grande
spellingShingle Cyphocharax platanus
parasites
Digenea
Uruguay river
Salto Grande dam
Cyphocharax platanus
parásitos
Digenea
Río Uruguay
Presa Salto Grande
VENZAL, José M.
CASTRO, Oscar
SOSA, Nicolás
FÉLIX, María L
LEITES, Valentín
MENONI, Federico
VIGIL, José D
Digenean parasites of Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) from the lower Uruguay River, downstream Salto Grande dam, Uruguay
topic_facet Cyphocharax platanus
parasites
Digenea
Uruguay river
Salto Grande dam
Cyphocharax platanus
parásitos
Digenea
Río Uruguay
Presa Salto Grande
author VENZAL, José M.
CASTRO, Oscar
SOSA, Nicolás
FÉLIX, María L
LEITES, Valentín
MENONI, Federico
VIGIL, José D
author_facet VENZAL, José M.
CASTRO, Oscar
SOSA, Nicolás
FÉLIX, María L
LEITES, Valentín
MENONI, Federico
VIGIL, José D
author_sort VENZAL, José M.
title Digenean parasites of Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) from the lower Uruguay River, downstream Salto Grande dam, Uruguay
title_short Digenean parasites of Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) from the lower Uruguay River, downstream Salto Grande dam, Uruguay
title_full Digenean parasites of Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) from the lower Uruguay River, downstream Salto Grande dam, Uruguay
title_fullStr Digenean parasites of Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) from the lower Uruguay River, downstream Salto Grande dam, Uruguay
title_full_unstemmed Digenean parasites of Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) from the lower Uruguay River, downstream Salto Grande dam, Uruguay
title_sort digenean parasites of cyphocharax platanus (günther, 1880) (characiformes: curimatidae) from the lower uruguay river, downstream salto grande dam, uruguay
description Seventy six specimens of Cyphocharax platanus were collected downstream Salto Grande dam, lower Uruguay River, Uruguay, between August 2012 and June 2013 and examined for digenean parasites. Three digenean taxa were identified: Saccocoelioides spp. (Haploporidae), Zonocotyle bicaecata (Zonocotylidae) (both adult in intestine) and Sphincterodiplostomum musculosum (Diplostomidae) metacercariae inside eyes. We found that 69.7% of examined fish were parasitized by at least one digenean taxon. Saccocoelioides spp. showed highest values of prevalence, mean intensity and mean abundance (43.4%, 5.45, and 2.37, respectively) of infection throughout the study than Z. bicaecata (28.9%, 1.32 and 0.38, respectively) and S. musculosum (13.2%, 2.80 and 0.37, respectively). Saccocoelioides spp. and S. musculosum showed an aggregated distribution pattern, while Z. bicaecata presented a random distribution in the host population. No significant differences in infection indexes of any digenean taxa in relation to host sex were found, and only Saccocoelioides spp. showed a significant association with host size, being more frequent in small fish. The infection indexes of the two intestinal digeneans (Saccocoelioides spp. and Z. bicaecata) were not significantly associated. These are the first records of Saccocoelioides spp. and Z. bicaecata from C. platanus in the Uruguay River, and the finding of S. musculosum metacercariae is a new host-parasite relationship.
publisher Universidad Nacional del Litoral
publishDate 2016
url https://bibliotecavirtual.unl.edu.ar/publicaciones/index.php/FAVEveterinaria/article/view/6130
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spelling I26-R133-article-61302023-09-15T10:28:02Z Digenean parasites of Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) from the lower Uruguay River, downstream Salto Grande dam, Uruguay Digeneos parásitos de Cyphocharax platanus (Günther, 1880) (Characiformes: Curimatidae) en el tramo inferior del río Uruguay en la zona de influencia de la represa de Salto Grande, Uruguay VENZAL, José M. CASTRO, Oscar SOSA, Nicolás FÉLIX, María L LEITES, Valentín MENONI, Federico VIGIL, José D Cyphocharax platanus parasites Digenea Uruguay river Salto Grande dam Cyphocharax platanus parásitos Digenea Río Uruguay Presa Salto Grande Seventy six specimens of Cyphocharax platanus were collected downstream Salto Grande dam, lower Uruguay River, Uruguay, between August 2012 and June 2013 and examined for digenean parasites. Three digenean taxa were identified: Saccocoelioides spp. (Haploporidae), Zonocotyle bicaecata (Zonocotylidae) (both adult in intestine) and Sphincterodiplostomum musculosum (Diplostomidae) metacercariae inside eyes. We found that 69.7% of examined fish were parasitized by at least one digenean taxon. Saccocoelioides spp. showed highest values of prevalence, mean intensity and mean abundance (43.4%, 5.45, and 2.37, respectively) of infection throughout the study than Z. bicaecata (28.9%, 1.32 and 0.38, respectively) and S. musculosum (13.2%, 2.80 and 0.37, respectively). Saccocoelioides spp. and S. musculosum showed an aggregated distribution pattern, while Z. bicaecata presented a random distribution in the host population. No significant differences in infection indexes of any digenean taxa in relation to host sex were found, and only Saccocoelioides spp. showed a significant association with host size, being more frequent in small fish. The infection indexes of the two intestinal digeneans (Saccocoelioides spp. and Z. bicaecata) were not significantly associated. These are the first records of Saccocoelioides spp. and Z. bicaecata from C. platanus in the Uruguay River, and the finding of S. musculosum metacercariae is a new host-parasite relationship. Entre agosto de 2012 y junio de 2013 estudios parasitológicos fueron llevados a cabo en 76 ejemplares de Cyphocharax platanus procedentes del tramo inferior del río Uruguay en la zona de influencia de la represa de Salto Grande. Tres taxones de digeneos fueron identificados: Saccocoelioides spp. (Haploporidae) y Zonocotyle bicaecata (Zonocotylidae) en intestino, y metacercarias de Sphincterodiplostomum musculosum (Diplostomidae) en el interior de los ojos. El 69,7% de los peces analizados resultaron parasitados por al menos un taxón de digeneo. Saccocoelioides spp. mostro los mayores valores de prevalencia, intensidad media y abundancia media (43,4%, 5,45, 2,37 respectivamente) de infección, en relación a Z. bicaecata (28,9%, 1,32 y 0,38 respectivamente) y S. musculosum (13,2%, 2,82 y 0,37 respectivamente). Saccocoelioides spp. y S. musculosum mostraron un patrón de distribución agregado, en tanto que Z. bicaecata presentó una distribución aleatoria en la población de hospedadores. No se hallaron diferencias significativas en los índices de infección de ninguno de los taxones de digeneos en relación al sexo de los hospedadores, y sólo Saccocoelioides spp. presentó una asociación significativa con el tamaño, siendo más frecuente en peces pequeños. Los dos parásitos intestinales (Saccocoelioides spp. y Z. bicaecata) no presentaron una asociación significativa entre sus índices de infección. Los registros de Saccocoelioides spp. y Z. bicaecata corresponden a los primeros para este hospedador en el río Uruguay, y el hallazgo de las metacercarias de S. musculosum constituye una nueva relación parásito-hospedador. Universidad Nacional del Litoral 2016-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original Original article application/pdf https://bibliotecavirtual.unl.edu.ar/publicaciones/index.php/FAVEveterinaria/article/view/6130 10.14409/favecv.v15i1/2.6130 FAVE Sección Ciencias Veterinarias; Vol. 15 Núm. 1/2 (2016): FAVE Sección Ciencias Veterinarias; 25-30 FAVE Sección Ciencias Veterinarias; Vol. 15 No. 1/2 (2016): FAVE Sección Ciencias Veterinarias; 25-30 FAVE Sección Ciencias Veterinarias; v. 15 n. 1/2 (2016): FAVE Sección Ciencias Veterinarias; 25-30 2362-5589 1666-938X 10.14409/favecv.v15i1/2 spa https://bibliotecavirtual.unl.edu.ar/publicaciones/index.php/FAVEveterinaria/article/view/6130/9145

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