Stock Intermixing and Movement of Atlantic Herring (<em>Clupea Harengus</em>) In the Gulf of Maine and Southern New England
Pourquoi ce travail est dans la base
Une base qui oublie comment elle a trouvé un travail ne peut pas être vérifiée. Voici les voies qui ont admis celui-ci.
Notice bibliographique
Résumé
Almost 40,000 Atlantic herring (Clupea harengus) were tagged in the Gulf of Maine and Southern New England between 2003 and 2004. This study was conducted in order to collect information on the current stock intermixing and migration patterns for Atlantic herring throughout their range. Management of the Atlantic herring US coastal stock complex depends on determining Total Allowable Catch allocations through an understanding of intermixing rates and migration patterns. The last tagging project in US waters ended in the early 1980's before the fishery shifted to using mobile gear offshore and the Georges Bank stock component recovered. Therefore, a new study was warranted so the assumptions of stock intermixing and migration patterns integrated into the management regime could be validated or redefined. Fish were tagged and released in the Gulf of Maine during the summer feeding/spawning period and in Southern New England during the winter feeding period. One hundred fifteen fish were recovered from the five defined spatial strata (Southern New England, Georges Bank, Gulf of Maine, Nova Scotia and New Brunswick) during the two years of this study. A significant portion of these recoveries represented long-distance migrations and extended times at large. Because recoveries were solely dependant on the commercial fishery, a major focus of the analyses for this study was developing an adjustment factor to weight tag returns by catch and effort. The adjusted returns were then used to describe proportional movements between spatial strata. Results from this study indicate that the majority of herring released in the Gulf of Maine either remained or returned to the same area. However, an appreciable percentage of herring (average, 13.5%) released in the Gulf of Maine were recovered in the Southern New England winter fishery and surprisingly in Nova Scotia (average 8%) during the summer fishery. Fish released in Southern New England were primarily recovered in the Gulf of Maine (66%), while approximately 14% were recovered in the same area of release (Southern New England) and in Nova Scotia. These results are important for two reasons, first they show that tagging herring in the context of an offshore fishery pursued by mobile gear is possible and second, that fish are moving in measurable numbers to and from Nova Scotia. Results from this study could have implications for the stock assessment and management of this species. A comprehensive tagging program should be initiated in order to mark hening in proportion to their abundance and distribution. Results from such a program could be used to quantify rather than just describe possible stock intermixing and define persistent migration patterns.
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.
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 | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,000 |
| 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 découle