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Multi-fleet stock assessment modelling with the Grym
Citation
Liu, J and Wotherspoon, S and Maschette, D, Multi-fleet stock assessment modelling with the Grym, Commission for the Conservation of Antarctic Marine Living Resources, 11 June (2021) [Refereed Conference Paper]
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Official URL: https://meetings.ccamlr.org/en/wg-sam-2021/10
Abstract
Grym is an implementation of the Generalized Yield Model in R that provides greater transparency and extensibility (Maschette et al., 2020, Wotherspoon & Maschette, 2020). This paper describes an extension of the Grym to permit multiple fleets within a season, allowing the Grym to model more complex fishery behavior and evolving fisheries practices. Results from the expansion are compared with existing analyses from the Grym. The model can include vessels using different gear types (e.g. trawl and longline) or identical selectivity. An example is presented for Patagonian toothfish.
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: | Wotherspoon, S (Dr Simon Wotherspoon) |
| UTAS Author: | Maschette, D (Mr Dale Maschette) |
| ID Code: | 155013 |
| Year Published: | 2021 |
| Deposited By: | Sustainable Marine Research Collaboration |
| Deposited On: | 2023-01-23 |
| Last Modified: | 2023-01-25 |
| Downloads: | 0 |
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