IBBEA   24401
INSTITUTO DE BIODIVERSIDAD Y BIOLOGIA EXPERIMENTAL Y APLICADA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Lacistorhynchoid trypanorhynchs from the Argentine Sea: specificity and transmission pathways
Autor/es:
MENORET, A.; IVANOV, V. A.
Lugar:
Rostock
Reunión:
Workshop; IX Workshop for Cestode Systematic and Phylogeny; 2017
Institución organizadora:
University of Rostock, Alemania
Resumen:
Lacistorhynchoids areparasites of marine elasmobranchs, and also infect a wide range of teleosts asintermediate hosts. A parasitological survey along the coast of Argentinaincluded the examination of 80 species of teleosts and 36 elasmobranchs. Sevenspecies of lacistorhynchoids have been reported from this region, however, theidentity of only 4 species has been confirmed, i.e., Callitetrarhynchus gracilis, Dasyrhynchuspacificus, Grillotia carvajalregorum and Grillotia patagonica. Callitetrarhynchus gracilis has onlybeen recovered as plerocerci from perciform teleosts (Sciaenidae andSerranidae). Plerocerci of D. pacificus,G. carvajalregorum and G. patagonica have been found in a widearray of teleosts, while the adults are more specific for their elasmobranchhosts. The transmission pathways of D.pacificus include at least 2 species of teleosts (Perciformes andGadiformes) and the shark Carcharhinusbrachuyrus. Grillotia carvajalregorum infects Squatina guggenheim through a wide array of teleosts (18 species ofBatrachoidiformes, Gadiformes, Ophidiiformes, Perciformes, Pleuronectiformes,and Scorpaeniformes). Grillotiapatagonica has a lower specificity for its definitive hosts, beingrecovered from 3 species in 3 different genera of rajiforms (Bathyraja, Psammobatis and Zearaja).Plerocerci of G. patagonica werefound in 7 species of teleosts (Perciformes and Gadiformes). In this study, D. pacificusand G. carvajalregorum were found inhosts from temperate waters of the Warm Temperature Southwestern AtlanticProvince, whereas G. patagonica seemsto be restricted to colder waters in the Patagonian shelf (MagellanicProvince).