Implementing the landing obligation - what costs are involved for the shrimp fisheries sector? : a brief overview
Notice bibliographique
Résumé
Because the current period of the de minimis exemption under the European landing obligation expires, this exemption must be reapplied for in the submission of the Joint Recommendation (JR) in May 2023. For this purpose, it was agreed that the costs involved in the introduction of the landing obligation for the shrimp fishery will be investigated and substantiated. The Ministry of LNV has therefore commissioned Wageningen Marine Research (WMR) and Wageningen Economic Research (WEcR) to investigate and report on the additional costs associated with the implementation of the landing obligation in the shrimp fishery sector. This study is a semi-quantitative study that provides an overview of the difficulties and constraints in implementing the landing obligation in the shrimp fishery and, where possible, an indication of the costs of implementation. An expert session and interviews with fishers and trained observers identified the critical factors that determine the cost of implementing the landing obligation. In addition, from two observer trips estimations of the extra costs and duration of the sorting process were made. The results show that, taking into account all aspects concerning duration of the process, extra costs of material, time and personnel, safety aspects and practical implementation, implementing the landing obligation for Dutch shrimp fisheries seems for most vessels very difficult or even not possible. Many issues were identified and the results show that even for the part of the fleet where sorting is possible (due to the presence of a sorting belt), it will either lead to considerable extra costs due to significant changes to vessels and crew or will on the other hand lead to loss of income. For all other vessels without a sorting belt implementing the landing obligation is not possible. Extra costs and time are also directly related to the amount and composition of bycatch, which is different over the seasons and locations. Significant amounts of different fractions of bycatches are obtained during all quarters, and total bycatch amounts were in general proportionally larger in quarters where the fishing effort and shrimp landings were higher. An exception is benthos which was proportionally highest in quarter 3. Large amounts of other bycatch than TAC species, such as high proportions of benthos, influences time and effort to sort out TAC species. For shrimp vessels in the fleet section >260 hp vessels with combined fisheries (MFL1) costs for sorting the TAC fish were calculated. If these vessels are obliged to sort undersized catches of TAC species, the total labour time onboard will be more than doubled. For three options based on the options that are available for fishermen to react to this obligation the effects were calculated. 1. If the total share of the revenue for the crew stays the same, the share per crew member halves. Due to the extra sorting time needed for the TAC fish, the crew has to be more than doubled. 2. If the ship owner pays the same share per crew member and hires the extra crew needed, all the extra costs due to the sorting of the undersized TAC fish lead to a negative profit. 3. If the number of crew members and the fishing effort stay the same, the number of hauls per fishing trip will need to be reduced due to the extra sorting time for the undersized TAC fish. The total revenue will be reduced proportionally with the reduction in hauls. This leads to a negative profit and halving the share of per crew member. For the three calculated scenarios, the revenue per crew member either at least halves, the net profit becomes negative, or both. As a result, implementation of the landing obligation in the Dutch shrimp fishery is not economically feasible. Alternatively, there should be room for innovating gears and vessels leading to less bycatch of undersized fish in the future. However, adjustment of the fleet requires time, research and investments.
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 machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,004 | 0,008 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,001 |
| Méta-épidémiologie (sens large) | 0,001 | 0,001 |
| Bibliométrie | 0,003 | 0,004 |
| Études des sciences et des technologies | 0,002 | 0,002 |
| Communication savante | 0,007 | 0,008 |
| Science ouverte | 0,001 | 0,002 |
| Intégrité de la recherche | 0,003 | 0,002 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,005 | 0,001 |
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 source (Gemma direct ou Codex distillé), 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 ».