Utility of mixed effects models to inform the stock structure of whiting in the Northeast Atlantic Ocean - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Fisheries Research Année : 2017

Utility of mixed effects models to inform the stock structure of whiting in the Northeast Atlantic Ocean

Résumé

Stock structure of whiting (Merlangius merlangus) in the North East Atlantic is unclear. This study uses mixed effects models to analyse growth variability as a way to investigate stock identification. Growth trajectories for 634 individuals and length-at-age data for 78,686 individuals were analysed for spatial coherence and temporal synchrony in the parameters of the von Bertalanffy growth model. Growth was found to differ among most ICES divisions, and temporal fluctuations were poorly synchronized between areas. This study illustrates how growth analyses can contribute to stock identification, in addition to other data.

Dates et versions

hal-04201842 , version 1 (11-09-2023)

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Alexander Barrios, Bruno Ernande, Kelig Mahe, Verena Trenkel, Marie-Joelle Rochet. Utility of mixed effects models to inform the stock structure of whiting in the Northeast Atlantic Ocean. Fisheries Research, 2017, 190, pp.132-139. ⟨10.1016/j.fishres.2017.02.005⟩. ⟨hal-04201842⟩
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