First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i>
- Autores
- Alda, María del Pilar; Bonel, Nicolás; Panei, Carlos Javier; Cazzaniga, Néstor Jorge; Martorelli, Sergio Roberto
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This is the first study that used species-specific DNA primers to confirm the presence of the heterophyid Ascocotyle (Phagicola) longa Ransom, 1920 in its first intermediate host. The larval stages (rediae and cercariae) of this parasite were morphologically and genetically identified in the gonad of the intertidal mud snail Heleobia australis (d'Orbigny, 1835) (Cochliopidae) in the Bahia Blanca estuary, Argentina. In addition, we asked whether the prevalence in H. australis varied between seasons. Mullets - the second intermediate host of this heterophyid - migrate in estuaries during the warmer seasons and it is expected that piscivorous birds and mammals - the definitive hosts - prey more intensively on this species at those times. Thus, the number of parasite eggs released into the tidal flat within their feces should be higher, thereby increasing the ingestion of the parasite by H. australis.We therefore expected a higher prevalence of A. (P.) longa in H. australis in the Bahia Blanca estuary during spring and summer than autumn and winter. We found that 16 out of 2,744 specimens of H. australis had been infected with A. (P.) longa (total prevalence of 0.58%). Nonetheless, the prevalence showed no significant variation between seasons. Hence, we discuss an alternative scenario where the lack of seasonal changes might be mostly related to the permanent residence of definitive hosts in the estuary and not to the seasonal recruitment of mullets. Finally, we highlight the need for more experimental and comparative approaches in order to understand the diagnosis and geographical distribution of this worldwide heterophyid.
Centro de Estudios Parasitológicos y de Vectores
Facultad de Ciencias Veterinarias - Materia
-
Biología
Trematode
heterophyiasis
Parasite distribution
Cochliopidae
Bahía Blanca estuary
Argentina - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/136417
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First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i>Alda, María del PilarBonel, NicolásPanei, Carlos JavierCazzaniga, Néstor JorgeMartorelli, Sergio RobertoBiologíaTrematodeheterophyiasisParasite distributionCochliopidaeBahía Blanca estuaryArgentinaThis is the first study that used species-specific DNA primers to confirm the presence of the heterophyid Ascocotyle (Phagicola) longa Ransom, 1920 in its first intermediate host. The larval stages (rediae and cercariae) of this parasite were morphologically and genetically identified in the gonad of the intertidal mud snail Heleobia australis (d'Orbigny, 1835) (Cochliopidae) in the Bahia Blanca estuary, Argentina. In addition, we asked whether the prevalence in H. australis varied between seasons. Mullets - the second intermediate host of this heterophyid - migrate in estuaries during the warmer seasons and it is expected that piscivorous birds and mammals - the definitive hosts - prey more intensively on this species at those times. Thus, the number of parasite eggs released into the tidal flat within their feces should be higher, thereby increasing the ingestion of the parasite by H. australis.We therefore expected a higher prevalence of A. (P.) longa in H. australis in the Bahia Blanca estuary during spring and summer than autumn and winter. We found that 16 out of 2,744 specimens of H. australis had been infected with A. (P.) longa (total prevalence of 0.58%). Nonetheless, the prevalence showed no significant variation between seasons. Hence, we discuss an alternative scenario where the lack of seasonal changes might be mostly related to the permanent residence of definitive hosts in the estuary and not to the seasonal recruitment of mullets. Finally, we highlight the need for more experimental and comparative approaches in order to understand the diagnosis and geographical distribution of this worldwide heterophyid.Centro de Estudios Parasitológicos y de VectoresFacultad de Ciencias Veterinarias2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf791-795http://sedici.unlp.edu.ar/handle/10915/136417enginfo:eu-repo/semantics/altIdentifier/issn/1896-1851info:eu-repo/semantics/altIdentifier/issn/1230-2821info:eu-repo/semantics/altIdentifier/doi/10.1515/ap-2015-0112info:eu-repo/semantics/altIdentifier/pmid/26408606info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:32:36Zoai:sedici.unlp.edu.ar:10915/136417Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:37.169SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i> |
title |
First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i> |
spellingShingle |
First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i> Alda, María del Pilar Biología Trematode heterophyiasis Parasite distribution Cochliopidae Bahía Blanca estuary Argentina |
title_short |
First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i> |
title_full |
First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i> |
title_fullStr |
First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i> |
title_full_unstemmed |
First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i> |
title_sort |
First molecular identification of <i>Ascocotyle</i> (Phagicola) longa in its first intermediate host the mud snail <i>Heleobia australis</i> |
dc.creator.none.fl_str_mv |
Alda, María del Pilar Bonel, Nicolás Panei, Carlos Javier Cazzaniga, Néstor Jorge Martorelli, Sergio Roberto |
author |
Alda, María del Pilar |
author_facet |
Alda, María del Pilar Bonel, Nicolás Panei, Carlos Javier Cazzaniga, Néstor Jorge Martorelli, Sergio Roberto |
author_role |
author |
author2 |
Bonel, Nicolás Panei, Carlos Javier Cazzaniga, Néstor Jorge Martorelli, Sergio Roberto |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Biología Trematode heterophyiasis Parasite distribution Cochliopidae Bahía Blanca estuary Argentina |
topic |
Biología Trematode heterophyiasis Parasite distribution Cochliopidae Bahía Blanca estuary Argentina |
dc.description.none.fl_txt_mv |
This is the first study that used species-specific DNA primers to confirm the presence of the heterophyid Ascocotyle (Phagicola) longa Ransom, 1920 in its first intermediate host. The larval stages (rediae and cercariae) of this parasite were morphologically and genetically identified in the gonad of the intertidal mud snail Heleobia australis (d'Orbigny, 1835) (Cochliopidae) in the Bahia Blanca estuary, Argentina. In addition, we asked whether the prevalence in H. australis varied between seasons. Mullets - the second intermediate host of this heterophyid - migrate in estuaries during the warmer seasons and it is expected that piscivorous birds and mammals - the definitive hosts - prey more intensively on this species at those times. Thus, the number of parasite eggs released into the tidal flat within their feces should be higher, thereby increasing the ingestion of the parasite by H. australis.We therefore expected a higher prevalence of A. (P.) longa in H. australis in the Bahia Blanca estuary during spring and summer than autumn and winter. We found that 16 out of 2,744 specimens of H. australis had been infected with A. (P.) longa (total prevalence of 0.58%). Nonetheless, the prevalence showed no significant variation between seasons. Hence, we discuss an alternative scenario where the lack of seasonal changes might be mostly related to the permanent residence of definitive hosts in the estuary and not to the seasonal recruitment of mullets. Finally, we highlight the need for more experimental and comparative approaches in order to understand the diagnosis and geographical distribution of this worldwide heterophyid. Centro de Estudios Parasitológicos y de Vectores Facultad de Ciencias Veterinarias |
description |
This is the first study that used species-specific DNA primers to confirm the presence of the heterophyid Ascocotyle (Phagicola) longa Ransom, 1920 in its first intermediate host. The larval stages (rediae and cercariae) of this parasite were morphologically and genetically identified in the gonad of the intertidal mud snail Heleobia australis (d'Orbigny, 1835) (Cochliopidae) in the Bahia Blanca estuary, Argentina. In addition, we asked whether the prevalence in H. australis varied between seasons. Mullets - the second intermediate host of this heterophyid - migrate in estuaries during the warmer seasons and it is expected that piscivorous birds and mammals - the definitive hosts - prey more intensively on this species at those times. Thus, the number of parasite eggs released into the tidal flat within their feces should be higher, thereby increasing the ingestion of the parasite by H. australis.We therefore expected a higher prevalence of A. (P.) longa in H. australis in the Bahia Blanca estuary during spring and summer than autumn and winter. We found that 16 out of 2,744 specimens of H. australis had been infected with A. (P.) longa (total prevalence of 0.58%). Nonetheless, the prevalence showed no significant variation between seasons. Hence, we discuss an alternative scenario where the lack of seasonal changes might be mostly related to the permanent residence of definitive hosts in the estuary and not to the seasonal recruitment of mullets. Finally, we highlight the need for more experimental and comparative approaches in order to understand the diagnosis and geographical distribution of this worldwide heterophyid. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/136417 |
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http://sedici.unlp.edu.ar/handle/10915/136417 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
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dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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