title: Three-spined stickleback Gasterosteus aculeatus, as a possible paratenic host for salmonid nematodes in a subarctic lake.
abstract: In Takvatn, a subarctic lake in northern Norway, 35 of 162 three-spined sticklebacks examined were infected with 106 specimens of third-stage larvae of Philonema oncorhynchi. The prevalence and mean intensity of P. oncorhynchi were 10 % and 2.0 in 2013 and 24 % and 3.0 in 2014, respectively. A single specimen of Cystidicola farionis was found in an additional sample. While the latter is considered an accidental infection, three-spined sticklebacks may function as paratenic hosts of P. oncorhynchi, potentially enhancing its transmission to salmonids due to their central role in the lacustrine food web of this subarctic lake.
authors.affiliation: Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600, Mar del Plata, Argentina. braicovi@mdp.edu.ar.
authors.forename: Paola E
authors.initials: PE
authors.lastname: Braicovich
authors.affiliation: Department of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, 9037, Tromsø, Norway.
authors.forename: Jesper A
authors.initials: JA
authors.lastname: Kuhn
authors.affiliation: Department of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, 9037, Tromsø, Norway.
authors.forename: Per-Arne
authors.initials: PA
authors.lastname: Amundsen
authors.affiliation: Aquatic Contaminants Research Division, Water Science and Technology Directorate, Science and Technology Branch, Environment and Climate Change Canada, St. Lawrence Centre, 105 McGill, 7th Floor, Montreal, Quebec, H2Y 2E7, Canada.
authors.forename: David J
authors.initials: DJ
authors.lastname: Marcogliese
mesh_terms: D000818:Animals; D017176:Dracunculoidea / Q000302:isolation & purification*; D005393:Fish Diseases / Q000469:parasitology*; D060106:Lakes; D007814:Larva / Q000145:classification; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D009664:Norway; D023701:Smegmamorpha / Q000469:parasitology*
keywords: Cystidicola sp.; Philonema sp.; Takvatn; Trophically transmitted parasites