Use of parameters within Euphausia superba Grym simulations
The SC-CAMLR last estimated a precautionary harvest rate (gamma) used for managementadvice in the Area 48 krill fisheries in 2007 (SC-CAMLR, 2007 Annex 4 paras. 2.38-2.39).Subsequently, a range of various methods have been tried, with limited success, to produceboth input parameters and stock assess...
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ftunivtasecite:oai:ecite.utas.edu.au:155008 2023-05-15T16:08:28+02:00 Use of parameters within Euphausia superba Grym simulations Maschette, D Wotherspoon, S 2021 application/pdf https://meetings.ccamlr.org/en/wg-fsa-2021/40 http://ecite.utas.edu.au/155008 en eng CCAMLR http://ecite.utas.edu.au/155008/1/155008 - Use of parameters within Euphausia superba Grym simulations.pdf Maschette, D and Wotherspoon, S, Use of parameters within Euphausia superba Grym simulations, Commission for the Conservation of Antarctic Marine Living Resources, 29 August (2021) [Refereed Conference Paper] http://ecite.utas.edu.au/155008 Agricultural Veterinary and Food Sciences Fisheries sciences Fisheries management Refereed Conference Paper PeerReviewed 2021 ftunivtasecite 2023-01-30T23:17:10Z The SC-CAMLR last estimated a precautionary harvest rate (gamma) used for managementadvice in the Area 48 krill fisheries in 2007 (SC-CAMLR, 2007 Annex 4 paras. 2.38-2.39).Subsequently, a range of various methods have been tried, with limited success, to produceboth input parameters and stock assessments which can be used for management advice.Following the work plan outlined by SC-CAMLR (2019, Annex 4 paras. 2.60 2.64) endorsedby the Commission (CCAMLR, 2019, para. 5.53) the Generalised Yield Model (GYM)software was reimplemented in R as the Grym package, with the intention of updating theprevious krill assessment. However, the methods used to estimate some input parameters to theprevious assessment were not documented in detail, and there remains considerable ambiguityas to how to compute these inputs, and how these inputs are used within the assessmentsimulations.Here we aim to clarify what each parameter within the Grym models are used for, and wherepossible provide examples as to how they have been calculated. Conference Object Euphausia superba eCite UTAS (University of Tasmania) Paras ENVELOPE(20.139,20.139,69.111,69.111) |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Agricultural Veterinary and Food Sciences Fisheries sciences Fisheries management |
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Agricultural Veterinary and Food Sciences Fisheries sciences Fisheries management Maschette, D Wotherspoon, S Use of parameters within Euphausia superba Grym simulations |
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Agricultural Veterinary and Food Sciences Fisheries sciences Fisheries management |
description |
The SC-CAMLR last estimated a precautionary harvest rate (gamma) used for managementadvice in the Area 48 krill fisheries in 2007 (SC-CAMLR, 2007 Annex 4 paras. 2.38-2.39).Subsequently, a range of various methods have been tried, with limited success, to produceboth input parameters and stock assessments which can be used for management advice.Following the work plan outlined by SC-CAMLR (2019, Annex 4 paras. 2.60 2.64) endorsedby the Commission (CCAMLR, 2019, para. 5.53) the Generalised Yield Model (GYM)software was reimplemented in R as the Grym package, with the intention of updating theprevious krill assessment. However, the methods used to estimate some input parameters to theprevious assessment were not documented in detail, and there remains considerable ambiguityas to how to compute these inputs, and how these inputs are used within the assessmentsimulations.Here we aim to clarify what each parameter within the Grym models are used for, and wherepossible provide examples as to how they have been calculated. |
format |
Conference Object |
author |
Maschette, D Wotherspoon, S |
author_facet |
Maschette, D Wotherspoon, S |
author_sort |
Maschette, D |
title |
Use of parameters within Euphausia superba Grym simulations |
title_short |
Use of parameters within Euphausia superba Grym simulations |
title_full |
Use of parameters within Euphausia superba Grym simulations |
title_fullStr |
Use of parameters within Euphausia superba Grym simulations |
title_full_unstemmed |
Use of parameters within Euphausia superba Grym simulations |
title_sort |
use of parameters within euphausia superba grym simulations |
publisher |
CCAMLR |
publishDate |
2021 |
url |
https://meetings.ccamlr.org/en/wg-fsa-2021/40 http://ecite.utas.edu.au/155008 |
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ENVELOPE(20.139,20.139,69.111,69.111) |
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Paras |
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Paras |
genre |
Euphausia superba |
genre_facet |
Euphausia superba |
op_relation |
http://ecite.utas.edu.au/155008/1/155008 - Use of parameters within Euphausia superba Grym simulations.pdf Maschette, D and Wotherspoon, S, Use of parameters within Euphausia superba Grym simulations, Commission for the Conservation of Antarctic Marine Living Resources, 29 August (2021) [Refereed Conference Paper] http://ecite.utas.edu.au/155008 |
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1766404515442982912 |