Ultra-structural characterization of Diplostomum sp metacercarian in Orestias luteus from Lake Titicaca, Peru

The objective of the present work was the ultra-structural characterization of metacercariae of Diplostomum sp in Orestias luteus from Lake Titicaca, Puno, Peru. 35 fish collected through non-probabilistic sampling were anesthetized with tricaine monosulfonate (Tricaine-s®) and necropsied to determi...

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Autores principales: Montesinos, J. A., Serrano, E., Tantaleán, V. M., Yañez, J., Flores, R.
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Universidad Nacional del Nordeste 2022
Materias:
Orestias luteus
Diplostomum sp
Lago Titicaca
Parásitos
Lake Titicaca
Parasites
Acceso en línea:https://revistas.unne.edu.ar/index.php/vet/article/view/6184
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-6184
record_format ojs
spelling I48-R154-article-61842023-06-21T17:23:33Z Ultra-structural characterization of Diplostomum sp metacercarian in Orestias luteus from Lake Titicaca, Peru Caracterizacion ultra-estructural de metacercarias de Diplostomum sp en Orestias luteus del Lago Titicaca, Perú Montesinos, J. A. Serrano, E. Tantaleán, V. M. Yañez, J. Flores, R. Orestias luteus Diplostomum sp Lago Titicaca Parásitos Orestias luteus Diplostomum sp Lake Titicaca Parasites The objective of the present work was the ultra-structural characterization of metacercariae of Diplostomum sp in Orestias luteus from Lake Titicaca, Puno, Peru. 35 fish collected through non-probabilistic sampling were anesthetized with tricaine monosulfonate (Tricaine-s®) and necropsied to determine the number of Diplostomum sp present per fish. The extracted parasites were fixed and preserved for study by scanning electron microscope. The frequency of parasitosis was 48.6% (IC 95%: 32.0-65.1) with a mean parasitic intensity of infection of 3.53 (low). The metacercaria of Diplostomum sp are lingui form in shape with papillae unevenly distributed on the surface of the body, have a posterior border with a slight conical prominence, and an extreme anterior circle where the oral suction cup is located. There is also an ellipsoidal acetabulum located in the anterior and ventral third of the posterior segment of the body; behind that is the ovoid-shaped tri bocytic organ. The morpho anatomic characteristics of the parasite under study coincide with Diplostomum mordax. The prevalence of Diplostomum sp in Lake Titicaca is high compared to previous years. However, the average intensity is low; suggesting that, for the moment, Diplostomum sp is not a threat to the health of O. luteus. El objetivo del presente trabajo fue la caracterización ultraestructural de metacercarias de Diplostomum sp en Orestias luteus del lago Titicaca, Puno, Perú. Se recolectaron 35 peces mediante muestreo no probabilístico los cuales fueron anestesiados con tricaina mono sulfonato (Tricaine-s®) y se les realizó necropsia para determinar el número de Diplostomum sp presente por pez. Los parásitos extraídos se fijaron y conservaron para su estudio mediante microscopía electrónica de barrido. La frecuencia de parasitosis fue de 48,6% (IC95%: 32,0-65,1) con una intensidad de infección parasitaria media de 3,53 (baja). La metacercaria de Diplostomum sp son de forma linguiforme con papilas distribuidas de manera desigual en la superficie del cuerpo, tienen un borde posterior con una ligera prominencia cónica y un círculo anterior extremo donde se ubica la ventosa oral. También hay un acetábulo elipsoidal ubicado en el tercio anterior y ventral del segmento posterior del cuerpo; detrás de eso está el órgano tribocítico de forma ovoide. Las características morfo-anatómicas del parásito en estudio coinciden con Diplostomum mordax. La prevalencia de Diplostomum sp en el lago Titicaca es alto en comparación con años anteriores. Sin embargo, la intensidad media es baja; sugiriendo que, por el momento, Diplostomum sp. no es una amenaza para la salud de O. luteus. Universidad Nacional del Nordeste 2022-12-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/vet/article/view/6184 10.30972/vet.3326184 Revista Veterinaria; Vol. 33 Núm. 2 (2022); 215-219 1669-6840 1668-4834 eng https://revistas.unne.edu.ar/index.php/vet/article/view/6184/5866 Derechos de autor 2022 Revista Veterinaria
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Inglés
format Artículo revista
topic Orestias luteus
Diplostomum sp
Lago Titicaca
Parásitos
Orestias luteus
Diplostomum sp
Lake Titicaca
Parasites
spellingShingle Orestias luteus
Diplostomum sp
Lago Titicaca
Parásitos
Orestias luteus
Diplostomum sp
Lake Titicaca
Parasites
Montesinos, J. A.
Serrano, E.
Tantaleán, V. M.
Yañez, J.
Flores, R.
Ultra-structural characterization of Diplostomum sp metacercarian in Orestias luteus from Lake Titicaca, Peru
topic_facet Orestias luteus
Diplostomum sp
Lago Titicaca
Parásitos
Orestias luteus
Diplostomum sp
Lake Titicaca
Parasites
author Montesinos, J. A.
Serrano, E.
Tantaleán, V. M.
Yañez, J.
Flores, R.
author_facet Montesinos, J. A.
Serrano, E.
Tantaleán, V. M.
Yañez, J.
Flores, R.
author_sort Montesinos, J. A.
title Ultra-structural characterization of Diplostomum sp metacercarian in Orestias luteus from Lake Titicaca, Peru
title_short Ultra-structural characterization of Diplostomum sp metacercarian in Orestias luteus from Lake Titicaca, Peru
title_full Ultra-structural characterization of Diplostomum sp metacercarian in Orestias luteus from Lake Titicaca, Peru
title_fullStr Ultra-structural characterization of Diplostomum sp metacercarian in Orestias luteus from Lake Titicaca, Peru
title_full_unstemmed Ultra-structural characterization of Diplostomum sp metacercarian in Orestias luteus from Lake Titicaca, Peru
title_sort ultra-structural characterization of diplostomum sp metacercarian in orestias luteus from lake titicaca, peru
description The objective of the present work was the ultra-structural characterization of metacercariae of Diplostomum sp in Orestias luteus from Lake Titicaca, Puno, Peru. 35 fish collected through non-probabilistic sampling were anesthetized with tricaine monosulfonate (Tricaine-s®) and necropsied to determine the number of Diplostomum sp present per fish. The extracted parasites were fixed and preserved for study by scanning electron microscope. The frequency of parasitosis was 48.6% (IC 95%: 32.0-65.1) with a mean parasitic intensity of infection of 3.53 (low). The metacercaria of Diplostomum sp are lingui form in shape with papillae unevenly distributed on the surface of the body, have a posterior border with a slight conical prominence, and an extreme anterior circle where the oral suction cup is located. There is also an ellipsoidal acetabulum located in the anterior and ventral third of the posterior segment of the body; behind that is the ovoid-shaped tri bocytic organ. The morpho anatomic characteristics of the parasite under study coincide with Diplostomum mordax. The prevalence of Diplostomum sp in Lake Titicaca is high compared to previous years. However, the average intensity is low; suggesting that, for the moment, Diplostomum sp is not a threat to the health of O. luteus.
publisher Universidad Nacional del Nordeste
publishDate 2022
url https://revistas.unne.edu.ar/index.php/vet/article/view/6184
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first_indexed 2023-03-18T23:06:58Z
last_indexed 2024-08-21T22:35:45Z
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