Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
Three Operating Models (OMs) reflecting an “Optimistic”, “Intermediate” and a “Pessimistic” current status for the toothfish resource in the Prince Edward Islands region are developed which take account of the different selectivities of past longline and pot fisheries. These models are used for tria...
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MARAM, University of Cape Town
2007
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Online Access: | http://hdl.handle.net/11427/17805 https://open.uct.ac.za/bitstream/11427/17805/1/Brand%c3%a3o_Extension_development_2007.pdf |
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ftunivcapetownir:oai:localhost:11427/17805 2023-05-15T18:03:26+02:00 Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity Brandão, Anabela Butterworth, Doug S 2007 application/pdf http://hdl.handle.net/11427/17805 https://open.uct.ac.za/bitstream/11427/17805/1/Brand%c3%a3o_Extension_development_2007.pdf eng eng MARAM, University of Cape Town University of Cape Town Faculty of Science Marine Resource Assessment and Management Group http://hdl.handle.net/11427/17805 https://open.uct.ac.za/bitstream/11427/17805/1/Brand%c3%a3o_Extension_development_2007.pdf Working Paper 2007 ftunivcapetownir 2022-09-13T05:55:50Z Three Operating Models (OMs) reflecting an “Optimistic”, “Intermediate” and a “Pessimistic” current status for the toothfish resource in the Prince Edward Islands region are developed which take account of the different selectivities of past longline and pot fisheries. These models are used for trials of a candidate Management Procedure (MP) which could provide future TAC recommendations for this resource. The MP uses two data sources: the recent trend in longline CPUE and the mean length of the catches made. This MP provides encouraging performance over the wide range of scenarios considered, increasing catches substantially if the resource is above MSYL, while increasing more slowly if the resource is heavily depleted while nevertheless securing stock increase with high probability. Report Prince Edward Islands University of Cape Town: OpenUCT Tac ENVELOPE(-59.517,-59.517,-62.500,-62.500) |
institution |
Open Polar |
collection |
University of Cape Town: OpenUCT |
op_collection_id |
ftunivcapetownir |
language |
English |
description |
Three Operating Models (OMs) reflecting an “Optimistic”, “Intermediate” and a “Pessimistic” current status for the toothfish resource in the Prince Edward Islands region are developed which take account of the different selectivities of past longline and pot fisheries. These models are used for trials of a candidate Management Procedure (MP) which could provide future TAC recommendations for this resource. The MP uses two data sources: the recent trend in longline CPUE and the mean length of the catches made. This MP provides encouraging performance over the wide range of scenarios considered, increasing catches substantially if the resource is above MSYL, while increasing more slowly if the resource is heavily depleted while nevertheless securing stock increase with high probability. |
format |
Report |
author |
Brandão, Anabela Butterworth, Doug S |
spellingShingle |
Brandão, Anabela Butterworth, Doug S Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity |
author_facet |
Brandão, Anabela Butterworth, Doug S |
author_sort |
Brandão, Anabela |
title |
Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity |
title_short |
Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity |
title_full |
Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity |
title_fullStr |
Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity |
title_full_unstemmed |
Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity |
title_sort |
extension of the development of a management procedure for the toothfish (dissostichus eleginoides) resource in the prince edward islands vicinity |
publisher |
MARAM, University of Cape Town |
publishDate |
2007 |
url |
http://hdl.handle.net/11427/17805 https://open.uct.ac.za/bitstream/11427/17805/1/Brand%c3%a3o_Extension_development_2007.pdf |
long_lat |
ENVELOPE(-59.517,-59.517,-62.500,-62.500) |
geographic |
Tac |
geographic_facet |
Tac |
genre |
Prince Edward Islands |
genre_facet |
Prince Edward Islands |
op_relation |
http://hdl.handle.net/11427/17805 https://open.uct.ac.za/bitstream/11427/17805/1/Brand%c3%a3o_Extension_development_2007.pdf |
_version_ |
1766174289170530304 |