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
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/136417

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network_name_str SEDICI (UNLP)
spelling 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
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info:ar-repo/semantics/articulo
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/136417
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info:eu-repo/semantics/altIdentifier/issn/1230-2821
info:eu-repo/semantics/altIdentifier/doi/10.1515/ap-2015-0112
info:eu-repo/semantics/altIdentifier/pmid/26408606
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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rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
791-795
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reponame_str SEDICI (UNLP)
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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