Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada)
Anisakid nematodes were observed in freshwater and anadromous fishes in the St. Lawrence River, Québec, Canada. Fish were caught at different locations across a 250 km gradient in the St. Lawrence ecosystem covering freshwater and estuarine habitats. Depending on the sampling sites, nematode prevale...
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Elsevier
2024-12-01
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| Series: | International Journal for Parasitology: Parasites and Wildlife |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213224424000968 |
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| author | Catherine Brisson-Bonenfant Yves Paradis David J. Marcogliese Guillaume Côté Sarah Aubé Simon Bernatchez Philippe Brodeur |
| author_facet | Catherine Brisson-Bonenfant Yves Paradis David J. Marcogliese Guillaume Côté Sarah Aubé Simon Bernatchez Philippe Brodeur |
| author_sort | Catherine Brisson-Bonenfant |
| collection | DOAJ |
| description | Anisakid nematodes were observed in freshwater and anadromous fishes in the St. Lawrence River, Québec, Canada. Fish were caught at different locations across a 250 km gradient in the St. Lawrence ecosystem covering freshwater and estuarine habitats. Depending on the sampling sites, nematode prevalence ranged from 30% to 58% for sauger (Sander canadensis) and was 43% for Atlantic tomcod (Microgadus tomcod). For walleye (Sander vitreus), parasites were found only in a fluvial Lake (Lake Saint-Pierre) of the St. Lawrence River, with a prevalence of 23%. In all sampling sites, mean abundance of nematodes in the flesh was higher in sauger than in walleye. Presence of nematodes was significantly correlated with fish total length for walleye, sauger and Atlantic tomcod. Sealworm, Phocanema decipiens s.s., and whaleworm, Anisakis simplex s.s., were found and identified by molecular analysis in sauger and walleye in a fluvial lake (Lake Saint-Pierre), the fluvial estuary and the upper estuary of the St. Lawrence River, while Atlantic tomcod were found infected in a freshwater river tributary (Sainte-Anne River) during spawning.This is the first record of Ph. decipiens s.s. in a non-anadromous freshwater fish. The presence of sealworm and whaleworm in walleye and sauger is attributed to their forays into the brackish waters of the fluvial estuary and suggest large scale migrations between the brackish and the fresh waters of the St. Lawrence River. |
| format | Article |
| id | doaj-art-3f6e99ca9b3e4320b7ec84bd2c7cccf6 |
| institution | DOAJ |
| issn | 2213-2244 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal for Parasitology: Parasites and Wildlife |
| spelling | doaj-art-3f6e99ca9b3e4320b7ec84bd2c7cccf62025-08-20T02:39:27ZengElsevierInternational Journal for Parasitology: Parasites and Wildlife2213-22442024-12-012510100010.1016/j.ijppaw.2024.101000Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada)Catherine Brisson-Bonenfant0Yves Paradis1David J. Marcogliese2Guillaume Côté3Sarah Aubé4Simon Bernatchez5Philippe Brodeur6Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, 880 Chemin Sainte-Foy, Québec, G1S 4X4, Québec, Canada; Corresponding author. Direction principale de l'expertise sur la faune aquatique, ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, Québec, Canada.Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, 880 Chemin Sainte-Foy, Québec, G1S 4X4, Québec, CanadaAquatic Contaminants Research Division, Water Science and Technology Directorate, Science and Technology Branch, Environment and Climate Change Canada, St. Lawrence Centre, 105 McGill Street, 7th floor, Montreal, Quebec H2Y 2E7, Canada; St. Andrews Biological Station, 125 Marine Science Drive, St. Andrews, New Brunswick, E5B 0E4, CanadaMinistère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, 880 Chemin Sainte-Foy, Québec, G1S 4X4, Québec, CanadaMinistère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, 880 Chemin Sainte-Foy, Québec, G1S 4X4, Québec, CanadaMinistère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, 880 Chemin Sainte-Foy, Québec, G1S 4X4, Québec, CanadaMinistère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, 100 Rue Laviolette, Trois-Rivières, G9A 5S9, Québec, CanadaAnisakid nematodes were observed in freshwater and anadromous fishes in the St. Lawrence River, Québec, Canada. Fish were caught at different locations across a 250 km gradient in the St. Lawrence ecosystem covering freshwater and estuarine habitats. Depending on the sampling sites, nematode prevalence ranged from 30% to 58% for sauger (Sander canadensis) and was 43% for Atlantic tomcod (Microgadus tomcod). For walleye (Sander vitreus), parasites were found only in a fluvial Lake (Lake Saint-Pierre) of the St. Lawrence River, with a prevalence of 23%. In all sampling sites, mean abundance of nematodes in the flesh was higher in sauger than in walleye. Presence of nematodes was significantly correlated with fish total length for walleye, sauger and Atlantic tomcod. Sealworm, Phocanema decipiens s.s., and whaleworm, Anisakis simplex s.s., were found and identified by molecular analysis in sauger and walleye in a fluvial lake (Lake Saint-Pierre), the fluvial estuary and the upper estuary of the St. Lawrence River, while Atlantic tomcod were found infected in a freshwater river tributary (Sainte-Anne River) during spawning.This is the first record of Ph. decipiens s.s. in a non-anadromous freshwater fish. The presence of sealworm and whaleworm in walleye and sauger is attributed to their forays into the brackish waters of the fluvial estuary and suggest large scale migrations between the brackish and the fresh waters of the St. Lawrence River.http://www.sciencedirect.com/science/article/pii/S2213224424000968Phocanema decipiensWalleyeSaugerAnisakis simplexAtlantic tomcod |
| spellingShingle | Catherine Brisson-Bonenfant Yves Paradis David J. Marcogliese Guillaume Côté Sarah Aubé Simon Bernatchez Philippe Brodeur Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada) International Journal for Parasitology: Parasites and Wildlife Phocanema decipiens Walleye Sauger Anisakis simplex Atlantic tomcod |
| title | Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada) |
| title_full | Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada) |
| title_fullStr | Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada) |
| title_full_unstemmed | Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada) |
| title_short | Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada) |
| title_sort | anisakid nematode larvae in freshwater fishes in the st lawrence river quebec canada |
| topic | Phocanema decipiens Walleye Sauger Anisakis simplex Atlantic tomcod |
| url | http://www.sciencedirect.com/science/article/pii/S2213224424000968 |
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