RT Journal Article
T1 Specificity of Stenurus (Metastrongyloidea: Pseudaliidae) infections in odontocetes stranded along the north-west Spanish coast
A1 Saldaña Ruíz, Ana
A1 López Sández, Ceferino Manuel
A1 López Fernández, Alfredo
A1 Covelo Figueiredo, Pablo
A1 Remesar Alonso, Susana
A1 Martínez Calabuig, Néstor
A1 García-Dios, David
A1 Díaz Fernández, Pablo
A1 Morrondo Pelayo, María Patrocinio
A1 Díez Baños, Pablo
A1 Panadero Fontán, Rosario
K1 Cetacean
K1 Odontocetes
K1 Parasites
K1 Stenurus
K1 Strandings
K1 Galician coast
AB Parasites extracted from the lungs and the pterygoid sinus complex of 6 species of odontocetes stranded along the north-west Spanish coast (Northeast Atlantic) between 2009 and 2019 were morphologically identified. The samples belonged to 14 specimens, including 3 harbour porpoises, Phocoena phocoena, 6 short-finned pilot whales, Globicephala macrorhynchus, 1 long-finned pilot whale, Globicephala melas, 1 Risso's dolphin, Grampus griseus, 1 striped dolphin, Stenella coeruleoalba and 2 bottlenose dolphins, Tursiops truncatus. All animals (14/14) were infected by nematodes of the genus Stenurus spp.; moreover, two of them presented a mixed lung nematode infection by Stenurus spp. and Halocercus spp., and another two a mixed infection by Stenurus spp. and the trematode Nasitrema spp. in the pterygoid sinuses. The morphological characterization of the Stenurus specimens revealed the existence of three different species: Stenurus minor, present in the pterygoid sinuses of harbour porpoises with a mean intensity of 43.0 ± 9.0; Stenurus globicephalae, in the pterygoid sinuses of pilot whales and the Risso's dolphin (370.3 ± 579.4); and Stenurus ovatus infecting bottlenose and striped dolphins’ lungs (47.7 ± 76.5). This is the first citation of S. minor and S. ovatus in odontoceti from the Galician coast. Nematodes of the genus Stenurus are frequent in odontocetes stranded along the north-west Spanish coast. A clear host-parasite association was observed between S. minor and the Phocoenidae family, between S. globicephalae and the subfamily Globicephalinae and between S. ovatus and subfamily Delphininae. Different trophic position and niche segregation may lead to different patterns of specificity
PB Elsevier
YR 2022
FD 2022
LK http://hdl.handle.net/10347/29405
UL http://hdl.handle.net/10347/29405
LA eng
NO International Journal for Parasitology: Parasites and Wildlife 19 (2022) 148-154. https://doi.org/10.1016/j.ijppaw.2022.09.002
DS Minerva
RD 30 abr 2026