Section 5 Draft 22 November 1999
etermine what catch levels likely will decrease abundance. The decision analysis indicates that a yield of about 17,000 mt most likely will keep spawning biomass the same and has only a 20% probability of reducing 2004 spawning biomass to less than 90% of 2000 spawning biomass. Based on this result,...
Main Authors: | , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.166 http://www.afsc.noaa.gov/refm/docs/sable99.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.13.166 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.13.166 2023-05-15T15:43:45+02:00 Section 5 Draft 22 November 1999 Alaska Sablefish Assessment Michael F. Sigler Jeffrey T. Fujioka Ra A. Lowe The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.166 http://www.afsc.noaa.gov/refm/docs/sable99.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.166 http://www.afsc.noaa.gov/refm/docs/sable99.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.afsc.noaa.gov/refm/docs/sable99.pdf text ftciteseerx 2016-01-07T14:27:44Z etermine what catch levels likely will decrease abundance. The decision analysis indicates that a yield of about 17,000 mt most likely will keep spawning biomass the same and has only a 20% probability of reducing 2004 spawning biomass to less than 90% of 2000 spawning biomass. Based on this result, we recommend a 2000 ABC of 17,000 mt for the combined stock, a 7% increase from the 1999 ABC of 15,900 mt. The maximum permissible yield from an adjusted F 40% strategy is 17,200 mt. Regional ABC recommendation: A 5-year exponential weighting of the survey abundance index in weight (relative population weight or RPW) by region was used to apportion the combined ABC to regions, resulting in the following apportionments: Bering Sea 1,384 mt, Aleutian Islands 2,446 mt and Gulf of Alaska 13,170 mt, which is further apportioned Western 1,928 mt, Central 5,921 mt, West Yakutat 1,890 mt, and East Yakutat / Southeast 3,431 mt. Members of the fishing industry have asked us to show how fishery and Text Bering Sea Yakutat Alaska Aleutian Islands Unknown Bering Sea Gulf of Alaska |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
etermine what catch levels likely will decrease abundance. The decision analysis indicates that a yield of about 17,000 mt most likely will keep spawning biomass the same and has only a 20% probability of reducing 2004 spawning biomass to less than 90% of 2000 spawning biomass. Based on this result, we recommend a 2000 ABC of 17,000 mt for the combined stock, a 7% increase from the 1999 ABC of 15,900 mt. The maximum permissible yield from an adjusted F 40% strategy is 17,200 mt. Regional ABC recommendation: A 5-year exponential weighting of the survey abundance index in weight (relative population weight or RPW) by region was used to apportion the combined ABC to regions, resulting in the following apportionments: Bering Sea 1,384 mt, Aleutian Islands 2,446 mt and Gulf of Alaska 13,170 mt, which is further apportioned Western 1,928 mt, Central 5,921 mt, West Yakutat 1,890 mt, and East Yakutat / Southeast 3,431 mt. Members of the fishing industry have asked us to show how fishery and |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Alaska Sablefish Assessment Michael F. Sigler Jeffrey T. Fujioka Ra A. Lowe |
spellingShingle |
Alaska Sablefish Assessment Michael F. Sigler Jeffrey T. Fujioka Ra A. Lowe Section 5 Draft 22 November 1999 |
author_facet |
Alaska Sablefish Assessment Michael F. Sigler Jeffrey T. Fujioka Ra A. Lowe |
author_sort |
Alaska Sablefish Assessment |
title |
Section 5 Draft 22 November 1999 |
title_short |
Section 5 Draft 22 November 1999 |
title_full |
Section 5 Draft 22 November 1999 |
title_fullStr |
Section 5 Draft 22 November 1999 |
title_full_unstemmed |
Section 5 Draft 22 November 1999 |
title_sort |
section 5 draft 22 november 1999 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.166 http://www.afsc.noaa.gov/refm/docs/sable99.pdf |
geographic |
Bering Sea Gulf of Alaska |
geographic_facet |
Bering Sea Gulf of Alaska |
genre |
Bering Sea Yakutat Alaska Aleutian Islands |
genre_facet |
Bering Sea Yakutat Alaska Aleutian Islands |
op_source |
http://www.afsc.noaa.gov/refm/docs/sable99.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.166 http://www.afsc.noaa.gov/refm/docs/sable99.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766377947958083584 |