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Grym assessment for Subarea 48.1 Euphausia superba populations


Maschette, D and Wotherspoon, S and Kawaguchi, S and Ziegler, P, Grym assessment for Subarea 48.1 Euphausia superba populations, Commission for the Conservation of Antarctic Marine Living Resources, 29 August (2021) [Refereed Conference Paper]

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WG-SAM-2021 and WG-EMM-2021 reviewed available information for krill assessment simulations in Subarea 48.1 using the Grym. Whilst no agreement on parameters was achieved at WG-SAM-2021, the Working Group agreed that an ensemble approach using multiple parameter value combinations could be used (WG-SAM-2021, paras 3.21-3.22.)

WG-EMM-2021 provided initial parameters for the assessment simulations noting that alternate parameters could be tested to compare (WG-EMM-2021, paras 2.32-2.33 and Table 1).

Here we present the results of model ensembles for values either provided directly to the CCAMLR e-group on ‘GYM/Grym assessment model development’, or calculated based upon data submitted to the e-group.  Code and outputs of the models are available on github ( /tree/Simulations).

Item Details

Item Type:Refereed Conference Paper
Keywords:krill assessment
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Fisheries management
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - wild caught
Objective Field:Wild caught crustaceans (excl. rock lobster and prawns)
UTAS Author:Maschette, D (Mr Dale Maschette)
ID Code:155007
Year Published:2021
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2023-01-23
Last Modified:2023-01-25

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