Working Group on Multispecies Assessment Methods (WGSAM; outputs from 2020 meeting)

Type Article
Date 2021
Language English
Author(s) ICES
Contributor(s) Lehuta SigridORCID, Villanueva Ching-MariaORCID
Source ICES Scientific Reports/Rapports scientifiques du CIEM (2618-1371) (ICES), 2021 , Vol. 3 , N. 10 , P. 231p.
DOI 10.17895/ices.pub.7695
Abstract

The Working Group on Multispecies Assessment Methods (WGSAM) aims at enabling research on predator-prey interactions for developing advice on the ecosystem approach to fisheries man-agement.

This report details results related to WGSAM term of reference B: “Update of key-runs (stand-ardized model runs updated with recent data) of multispecies and ecosystem models for differ-ent ICES regions”. Multispecies model key-runs are used in ICES advice processes, and WGSAM provides critical expert review of these key-runs to recommend appropriate use of results.

Although key-run reviews have been conducted in the past, requests for reviews are increasing. Therefore, WGSAM first formalized a consistent set of review criteria to conduct key-run re-views. These are outlined in section 2 of this report and are posted online (https://ices-eg.github.io/wg_WGSAM/ReviewCriteria.html). WGSAM then applied these review criteria to one key-run for the North Sea ecosystem. The review is detailed in section 3 of this report. As the review criteria were applied, WGSAM also noted any difficulties with the review process in order to further refine the review criteria and to make future key-run reviews more efficient and effective.

WGSAM recommends the use of natural mortality estimates from the North Sea SMS key-run for use in single species stock assessment models of North Sea cod, haddock, herring, Norway pout, southern North Sea sandeel, northern North Sea sandeel, sprat, and whiting.

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