Stock assessment of the Southern Indian Ocean St. Paul and Amsterdam rock lobster stocks using statistical catch at age - Archive ouverte HAL Accéder directement au contenu
Rapport (Rapport De Recherche) Année : 2021

Stock assessment of the Southern Indian Ocean St. Paul and Amsterdam rock lobster stocks using statistical catch at age

Jules Selles
  • Fonction : Auteur
  • PersonId : 1117011
  • IdRef : 183977939

Résumé

This report presents new stock assessments for the rock lobster (Jasus paulensis) fishery of the Saint Paul and Amsterdam islands with data up to the last fishing campaign of 2020/21. These new assessments are based on statistical catch at age models using all available data except tagging program data. Stock status trajectories for both stocks start from a period of unsustainable fishing in the 1980s and recovered in the 1990s. The assessment results indicate that exploitable biomass in 2020 is likely to be well above BMSY, biomass status (B/BMSY) are 1.09 (0.86 - 1.50) and 2.12 (1.66 – 2.92) for Saint Paul and Amsterdam stocks respectively, and that fishing mortality is well below FMSY. These estimates are consistent with the results of preliminary assessment from biomass dynamic models. The short-term projection scenarios that were tested show that current catch levels are compatible with the sustainability of the rock lobster stocks.
Fichier principal
Vignette du fichier
Selles_2021_Stock assessment of the Southern Indian Ocean Saint Paul and Amsterdam rock lobster_vf.pdf (2.33 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03432754 , version 1 (17-11-2021)

Identifiants

  • HAL Id : hal-03432754 , version 1

Citer

Jules Selles. Stock assessment of the Southern Indian Ocean St. Paul and Amsterdam rock lobster stocks using statistical catch at age. [Research Report] Muséum national d’Histoire naturelle. 2021. ⟨hal-03432754⟩
26 Consultations
27 Téléchargements

Partager

Gmail Facebook X LinkedIn More