Working Group on North Atlantic Salmon (WGNAS)
Notice bibliographique
Résumé
WGNAS met to consider the status of, and threats to, Atlantic salmon in the North Atlantic Salmon Conservation Organization (NASCO) commission areas: West Greenland (WGC), North American (NAC), and Northeast Atlantic (NEAC). Information on the catch and exploitation, including salmon caught and released, and nominal harvest, as well as tagged and marked fish releases are provided by country and jurisdiction for the entire North Atlantic area.Numerous countries / jurisdictions reported to ICES on record or near record low returns of 1SW salmon in 2023 and again for 2024, with record low returns of MSW salmon in 2024 reported in five jurisdictions. These record low adult abundances, the estimated declines in post-smolt survival across stock units, and the general absence of any improvements in abundance highlight the concern that large-scale marine stressors at the North Atlantic scale are impacting salmon. While direct management interventions to mitigate the impacts of oceanic factors are limited, management actions to improve survival in, and production from, the in-river, estuarine, and coastal waters are key to species and stock resilience.Emerging threats were considered, in particular increased levels of lamprey damage on smolts in Lough Neagh (UK Northern Ireland) and a substantial mass mortality of adult salmon Mass mortality of returning salmon to Ballisodare River (Ireland) caused by gill damage by marine phytoplankton, mechanical damage navigating barriers under low water conditions, and secondary Saprolegnia (skin fungus) infections.New scientific advancements reported on include Quebec using the relationship between 1SW returns in one year and 2SW return the following year, to protect 2SW salmon returns in 2024 on the basis of record low returns of 1SW salmon in 2023.In 2024, the Northern NEAC 1SW and MSW returns stock components were considered to be at full reproductive capacity, but among the lowest in the time-series. The 2024 estimate of 1SW spawners was considered to be at full reproductive capacity but MSW spawners were considered to be at risk of suffering reduced reproductive capacity with the estimate being the fifth lowest in the time-series.In 2024, the southern NEAC 1SW and MSW returns stock components were considered to be at risk of suffering reduced reproductive capacity, with the estimates being the fifth and second lowest in the time-series. The 1SW and MSW spawners stock components were considered to be suffering reduced reproductive capacity and both being the fifth lowest in their time-series.In 2024, the estimated small (mainly 1SW) salmon returns to North American were the lowest since 1973 and have declined relative to the previous five-year mean for all NAC regions, except for the US which remained at low levels. The abundances of large salmon (MSW salmon including maiden and repeat spawners), as well as the 2SW maiden component, returns to North America in 2024 were the lowest of the 55-year time-series and declined relative to the previous five-year mean in all NAC regions.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,003 | 0,002 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,001 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,002 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».