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Artículo

Gastrointestinal parasites of bottlenose dolphins Tursiops truncatus from the extreme southwestern Atlantic, with notes on diet composition

Romero, Maria AlejandraIcon ; Fernandez, Mercedes; Dans, Silvana LauraIcon ; Garcia, Nestor AnibalIcon ; González, Raul Alberto CandidoIcon ; Crespo, Enrique AlbertoIcon
Fecha de publicación: 02/2014
Editorial: Inter-Research
Revista: Diseases Of Aquatic Organisms
ISSN: 0177-5103
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ecología

Resumen

We surveyed the gastrointestinal tracts of 6 bottlenose dolphins Tursiops truncatus from Patagonia to check for helminth parasites and characterize dolphin diet. All dolphins harbored parasites (6477 helminths). We recorded 7 species, including nematodes Anisakis simplex s.l., Pseudoterranova decipiens, acanthocephalans Corynosoma cetaceum, C. australe, and digeneans Braunina cordiformis, Pholeter gastrophilus and Synthesium tursionis. Among the gastric helminths, the most prevalent species were C. cetaceum and A. simplex while C. australe and S. tursionis inhabited the intestine at low prevalence. This is the first report of C. australe and P. decipiens in bottlenose dolphins. Regarding diet, 5 stomachs contained food remains (consisting of 103 prey items). The most important prey species were Geotria australis and Stromateus brasiliensis, but their role in parasite transmission is unclear. At the community level, the gastrointestinal parasite community of T. truncatus was depauperate and strongly overlapped the community described for pelagic dolphins inhabiting Patagonia, suggesting a strong local influence in shaping helminth communities. Nevertheless, these observations are at odds with the notion that oceanic cetaceans have comparatively poorer helminth fauna than neritic species such as bottlenose dolphins, due to the lower likelihood of parasite exchange.
Palabras clave: Tursiops Truncatus , Corynosoma , Anisakis , Pseudoterranova , Braunina , Pholeter , Synthesium , Patagonia , Argentina , Southwestern Atlantic
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info:eu-repo/semantics/openAccess 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/11336/17264
DOI: http://dx.doi.org/10.3354/dao02700
URL: http://www.int-res.com/abstracts/dao/v108/n1/p61-70/
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Articulos(CCT-CENPAT)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CENPAT
Citación
Romero, Maria Alejandra; Fernandez, Mercedes; Dans, Silvana Laura; Garcia, Nestor Anibal; González, Raul Alberto Candido; et al.; Gastrointestinal parasites of bottlenose dolphins Tursiops truncatus from the extreme southwestern Atlantic, with notes on diet composition; Inter-Research; Diseases Of Aquatic Organisms; 108; 1; 2-2014; 61-70
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