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Artículo

Parasitism (Trematoda, Digenea) in medusae from the southwestern Atlantic Ocean: Medusa hosts, parasite prevalences, and ecological implications

Diaz Briz, Luciana MabelIcon ; Martorelli, Sergio RobertoIcon ; Genzano, Gabriel NestorIcon ; Mianzan, Hermes WalterIcon
Fecha de publicación: 04/2012
Editorial: Springer
Revista: Hydrobiologia
ISSN: 0018-8158
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ecología

Resumen

Digenean are important endoparasites of fish with complex life cycles; some genera include medusae as secondary hosts. Their transmission to fish occurs when fish prey on these jelly hosts. Fish predation on jellyfish is a widespread phenomenon, even though predation by fish on jellyfish has not been determined through parasitism yet. It is hypothesized that medusae with high prevalences of digeneans could be important for their transmission to fish. A total of 48,900 specimens of 50 medusa species were analyzed; 2,181 harbored digeneans. Opechona sp. and Monascus filiformis were the most frequent and abundant parasites with the widest range of hosts. Hemiuridae gen. sp. and Bacciger sp. were found in few specimens of some medusa species. Prevalences were unevenly distributed in the region. Three groups with high prevalences values were identified mainly related to frontal areas: Río de la Plata, Bahía Blanca and North Patagonian tidal front. Eucheilota ventricularis, Clytia hemisphaerica, Proboscidactyla mutabilis, Liriope tetraphylla and Aequoerea spp. were the medusae that contributed the most as secondary hosts to M. filiformis and Opechona sp. The high prevalences found in these medusae suggest that may be a fundamental part of the life cycles of both parasites in these areas.
Palabras clave: MEDUSA , PARASITES , SOUTHATLANTIC , DIGENEA
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/102264
URL: http://link.springer.com/article/10.1007%2Fs10750-012-1040-1
DOI: http://dx.doi.org/10.1007/s10750-012-1040-1
Colecciones
Articulos(CEPAVE)
Articulos de CENTRO DE EST.PARASITOL.Y DE VECTORES (I)
Articulos(IIMYC)
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Citación
Diaz Briz, Luciana Mabel; Martorelli, Sergio Roberto; Genzano, Gabriel Nestor; Mianzan, Hermes Walter; Parasitism (Trematoda, Digenea) in medusae from the southwestern Atlantic Ocean: Medusa hosts, parasite prevalences, and ecological implications; Springer; Hydrobiologia; 690; 4-2012; 215-226
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