|Contributor(s)||Girardin Raphael, Ball Johnathan E., Spence Michael A., Sys Klaas, Vansteenbrugge Lies|
|Source||ICES Scientific Reports/Rapports scientifiques du CIEM (2618-1371) (ICES), 2019 , Vol. 1 , N. 75 , P. 88p.|
The ICES Inter-Benchmark Protocol of sole in the Eastern English Channel stock (IBPsol7d) met to investigate the effect of the missing UK beam trawl commercial index (UK-CBT) in 2017 and 2018, that was related to the recent change in the database system in UK. The aim was to inves-tigate the internal consistency of the new UK-CBT and to analyse its influence on the sole in 7d assessment. The model currently used to assess this stock is an extended survival analysis (XSA). No other model was tested. During the IBP, it was decided to revise the Belgium beam trawl commercial index (BE-CBT) to move from a Landing Per Unit of Effort (LPUE) index to a Catch Per Unit of Effort (CPUE). This decision was motivated by the increase of age 2 sole discards in recent years, and also to investigate the feasibility of adding a second index to tune age 2 sole in the assessment and put UK-BTS survey index into perspective.
ICES (2019). Inter-benchmark Protocol for sole in the Eastern English Channel (IBPsol7d). ICES Scientific Reports/Rapports scientifiques du CIEM, 1(75), 88p. Publisher's official version : https://doi.org/10.17895/ices.pub.5631 , Open Access version : https://archimer.ifremer.fr/doc/00615/72742/