Title |
{'en': 'Differential infestation of juvenile Pacific salmon by parasitic sea lice in British Columbia, Canada', 'fr': 'Infestation différentielle du saumon du Pacifique juvénile par le pou du poisson parasitaire en Colombie-Britannique, Canada'} |
URL |
ca-cioos_24f1c230-6c37-470c-907d-25b9b022f5c2 |
Description |
{'en': 'Fraser River Pacific salmon have declined in recent decades possibly from parasitism by sea lice (Caligus clemensi and Lepeophtheirus salmonis). We describe the abundance of both louse species infesting co-migrating juvenile pink (Oncorhynchus gorbuscha), chum (O. keta), and sockeye (O. nerka) salmon over five years in the Discovery Islands and Johnstone Strait, British Columbia. The generalist louse, C. clemensi, was 5-, 7-, and 39-times more abundant than the salmonid specialist, L. salmonis, on pink , chum, and sockeye salmon, respectively. Caligus clemensi abundance was higher on pinks (0.45, 95% CI: 0.38-0.55) and sockeye (0.39 95% CI 32 0.33-0.47) than chum. L. salmonis abundance was highest on pinks (0.09, 95% CI = 0.06-0.15). Caligus clemensi had higher abundances in Johnstone Strait than the Discovery Islands. These results suggest differences in host specialization and transmission dynamics between louse species. Because both lice infest farmed salmon, but only C. clemensi infests Pacific herring (Clupea pallasii), conservation science and management regarding lice and Fraser River salmon should further consider C. clemensi and transmission from farmed salmon and wild herring.', 'fr': "Le saumon du Pacifique du fleuve Fraser a diminué ces dernières décennies, probablement en raison du parasitisme du pou du poisson (Caligus clemensi et Lepeophtheirus salmonis). Nous décrivons l'abondance des deux espèces de pou infestant le saumon rose juvénile co-migrant (Oncorhynchus gorbuscha), le saumon kéta (O. keta) et le saumon rouge (O. nerka) pendant cinq ans dans les îles Discovery et le détroit de Johnstone, en Colombie-Britannique. Le pou généraliste, C. clemensi, était 5, 7 et 39 fois plus abondant que le spécialiste des salmonidés, L. salmonis, sur le saumon rose, le saumon kéta et le saumon rouge, respectivement. L'abondance de Caligus clemensi était plus élevée chez les roses (0,45, IC à 95\xa0%\xa0: 0,38-0,55) et le saumon rouge (0,39 IC à 95\xa0% 32 0,33-0,47) que le kéna. L'abondance de L. salmonis était la plus élevée chez les roses (0,09, IC à 95\xa0% = 0,06-0,15). Caligus clemensi avait une abondance plus élevée dans le détroit de Johnstone que dans les îles Discovery. Ces résultats suggèrent des différences dans la spécialisation des hôtes et la dynamique de transmission entre les espèces de pou. Étant donné que les deux poux infestent le saumon d'élevage, mais que seul C. clemensi infeste le hareng du Pacifique (Clupea pallasii), la science de la conservation et la gestion des poux et du saumon du fleuve Fraser devraient examiner davantage le C. clemensi et la transmission du saumon d'élevage et du hareng sauvage."} |
Keywords |
{'en': ['oceans', 'sea-lice', 'salmon', 'aquaculture', 'other', 'parasites', 'other'], 'fr': ['autre']} |
Ocean Variables |
Other |
Citation |
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License |
CC-BY-4.0 |
Scope |
Dataset |
Status |
Completed |
Topic Category |
oceans |
Associated Datasets |
|
Metadata Dates |
-
Date
-
2021-09-28
-
Type
- Publication
-
Date
-
2021-09-28
-
Type
- Revision
|
Resource Dates |
-
Date
-
2020-09-04
-
Type
- Publication
|
Maintenance and update frequency |
As Needed |
Maintenance Note |
Generated from https://cioos-siooc.github.io/metadata-entry-form |
Point of Contact |
-
Name
-
Cole Brookson
-
Affiliation
-
University of Alberta
-
Email
- brookson@ualberta.ca
-
Role
- Point of Contact
-
Name
-
Martin Krkosek
-
Affiliation
-
University of Toronto
-
Email
- martin.krkosek@utoronto.ca
-
Role
- Point of Contact
-
Name
-
Brett Johnson
-
Affiliation
-
Hakai Institute
-
Email
- brett.johnson@hakai.org
-
Role
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-
Name
-
Sean Godwin
-
Affiliation
-
Dalhousie University
-
Email
- sean.godwin@gmail.com
-
Role
- Point of Contact
|
Responsible Party |
-
Name
-
Cole Brookson
-
Affiliation
-
University of Alberta
-
Email
- brookson@ualberta.ca
-
Role
- Author
-
Name
-
Martin Krkosek
-
Affiliation
-
University of Toronto
-
Email
- martin.krkosek@utoronto.ca
-
Role
- Principal Investigator
-
Name
-
Brian Hunt
-
Affiliation
-
University of British Columbia
-
Email
- b.hunt@oceans.ubc.ca
-
Role
- Author
-
Name
-
Brett Johnson
-
Affiliation
-
Hakai Institute
-
Email
- brett.johnson@hakai.org
-
Role
-
Name
-
Luke Rogers
-
Affiliation
-
Fisheries and Oceans Canada
-
Role
- Author
-
Name
-
Sean Godwin
-
Affiliation
-
Dalhousie University
-
Email
- sean.godwin@gmail.com
-
Role
- Principal Investigator
|
Distributor |
-
Name
-
Brett Johnson
-
Affiliation
-
Hakai Institute
-
Email
- brett.johnson@hakai.org
-
Role
- Distributor
|
Spatial Extent |
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Default Locale |
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Citation identifier |
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Code
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XML Metadata File Location |
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<gco:CharacterString>Fraser River Pacific salmon have declined in recent decades possibly from parasitism by sea lice (Caligus clemensi and Lepeophtheirus salmonis). We describe the abundance of both louse species infesting co-migrating juvenile pink (Oncorhynchus gorbuscha), chum (O. keta), and sockeye (O. nerka) salmon over five years in the Discovery Islands and Johnstone Strait, British Columbia. The generalist louse, C. clemensi, was 5-, 7-, and 39-times more abundant than the salmonid specialist, L. salmonis, on pink , chum, and sockeye salmon, respectively. Caligus clemensi abundance was higher on pinks (0.45, 95% CI: 0.38-0.55) and sockeye (0.39 95% CI 32 0.33-0.47) than chum. L. salmonis abundance was highest on pinks (0.09, 95% CI = 0.06-0.15). Caligus clemensi had higher abundances in Johnstone Strait than the Discovery Islands. These results suggest differences in host specialization and transmission dynamics between louse species. Because both lice infest farmed salmon, but only C. clemensi infests Pacific herring (Clupea pallasii), conservation science and management regarding lice and Fraser River salmon should further consider C. clemensi and transmission from farmed salmon and wild herring.</gco:CharacterString>
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<lan:LocalisedCharacterString locale="#fr">Le saumon du Pacifique du fleuve Fraser a diminué ces dernières décennies, probablement en raison du parasitisme du pou du poisson (Caligus clemensi et Lepeophtheirus salmonis). Nous décrivons l'abondance des deux espèces de pou infestant le saumon rose juvénile co-migrant (Oncorhynchus gorbuscha), le saumon kéta (O. keta) et le saumon rouge (O. nerka) pendant cinq ans dans les îles Discovery et le détroit de Johnstone, en Colombie-Britannique. Le pou généraliste, C. clemensi, était 5, 7 et 39 fois plus abondant que le spécialiste des salmonidés, L. salmonis, sur le saumon rose, le saumon kéta et le saumon rouge, respectivement. L'abondance de Caligus clemensi était plus élevée chez les roses (0,45, IC à 95 % : 0,38-0,55) et le saumon rouge (0,39 IC à 95 % 32 0,33-0,47) que le kéna. L'abondance de L. salmonis était la plus élevée chez les roses (0,09, IC à 95 % = 0,06-0,15). Caligus clemensi avait une abondance plus élevée dans le détroit de Johnstone que dans les îles Discovery. Ces résultats suggèrent des différences dans la spécialisation des hôtes et la dynamique de transmission entre les espèces de pou. Étant donné que les deux poux infestent le saumon d'élevage, mais que seul C. clemensi infeste le hareng du Pacifique (Clupea pallasii), la science de la conservation et la gestion des poux et du saumon du fleuve Fraser devraient examiner davantage le C. clemensi et la transmission du saumon d'élevage et du hareng sauvage.</lan:LocalisedCharacterString>
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Organization |
8098fd34-269d-46b0-b2a3-5349e3f6475e |
Version |
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Initial dataset map max zoom level |
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Projects |
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Data Centre |
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Included in Data Catalogue |
Included in Data Catalogue 1
-
Name
- {'fr': 'Hakai Data Catalogue', 'en': 'Hakai Data Catalogue'}
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Description
- {'fr': 'Science on the Coastal Margin', 'en': 'Science on the Coastal Margin'}
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URL
- https://catalogue.hakai.org
|