Section 5 of Gulf of Alaska SAFE, Section 10 of Bering Sea/Aleutian Islands SAFE.
om last year's assessment that abundance would increase due to the above average 1997 year class. The 1997 year class is an important part of the total biomass and is projected to account for 24% of 2003 spawning biomass. Another year class likely is above average, the 1998 year class. Whether...
Main Authors: | , , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2002
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.5471 http://www.afsc.noaa.gov/refm/docs/2002/GOAsablefish.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.13.5471 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.13.5471 2023-05-15T15:43:44+02:00 Section 5 of Gulf of Alaska SAFE, Section 10 of Bering Sea/Aleutian Islands SAFE. Alaska Sablefish Assessment Michael F. Sigler Chris R. Lunsford Jeffrey T. Fujioka Ra A. Lowe The Pennsylvania State University CiteSeerX Archives 2002 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.5471 http://www.afsc.noaa.gov/refm/docs/2002/GOAsablefish.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.5471 http://www.afsc.noaa.gov/refm/docs/2002/GOAsablefish.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.afsc.noaa.gov/refm/docs/2002/GOAsablefish.pdf text 2002 ftciteseerx 2016-01-07T14:28:55Z om last year's assessment that abundance would increase due to the above average 1997 year class. The 1997 year class is an important part of the total biomass and is projected to account for 24% of 2003 spawning biomass. Another year class likely is above average, the 1998 year class. Whether sablefish abundance falls after the 2003 peak depends on the actual strength of the 1998 year class. ABC recommendation and decision analysis: Our previous approach for recommending ABC considered the abundance trend. We chose a catch level that avoided further abundance decreases because abundance was low. Abundance now has increased, so we changed our ABC recommendation method to adapt to the changed circumstance. In our new approach, we completed a decision analysis to determine what catch levels likely will avoid the historic low abundance observed in 1979. NPFMC Gulf of Alaska SAFE 229 The decision analysis indicates that a yield of 18,400 mt has only 0.2 probability of reducing 2007 spawn Text Bering Sea Alaska Aleutian Islands Unknown Bering Sea Gulf of Alaska |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
om last year's assessment that abundance would increase due to the above average 1997 year class. The 1997 year class is an important part of the total biomass and is projected to account for 24% of 2003 spawning biomass. Another year class likely is above average, the 1998 year class. Whether sablefish abundance falls after the 2003 peak depends on the actual strength of the 1998 year class. ABC recommendation and decision analysis: Our previous approach for recommending ABC considered the abundance trend. We chose a catch level that avoided further abundance decreases because abundance was low. Abundance now has increased, so we changed our ABC recommendation method to adapt to the changed circumstance. In our new approach, we completed a decision analysis to determine what catch levels likely will avoid the historic low abundance observed in 1979. NPFMC Gulf of Alaska SAFE 229 The decision analysis indicates that a yield of 18,400 mt has only 0.2 probability of reducing 2007 spawn |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Alaska Sablefish Assessment Michael F. Sigler Chris R. Lunsford Jeffrey T. Fujioka Ra A. Lowe |
spellingShingle |
Alaska Sablefish Assessment Michael F. Sigler Chris R. Lunsford Jeffrey T. Fujioka Ra A. Lowe Section 5 of Gulf of Alaska SAFE, Section 10 of Bering Sea/Aleutian Islands SAFE. |
author_facet |
Alaska Sablefish Assessment Michael F. Sigler Chris R. Lunsford Jeffrey T. Fujioka Ra A. Lowe |
author_sort |
Alaska Sablefish Assessment |
title |
Section 5 of Gulf of Alaska SAFE, Section 10 of Bering Sea/Aleutian Islands SAFE. |
title_short |
Section 5 of Gulf of Alaska SAFE, Section 10 of Bering Sea/Aleutian Islands SAFE. |
title_full |
Section 5 of Gulf of Alaska SAFE, Section 10 of Bering Sea/Aleutian Islands SAFE. |
title_fullStr |
Section 5 of Gulf of Alaska SAFE, Section 10 of Bering Sea/Aleutian Islands SAFE. |
title_full_unstemmed |
Section 5 of Gulf of Alaska SAFE, Section 10 of Bering Sea/Aleutian Islands SAFE. |
title_sort |
section 5 of gulf of alaska safe, section 10 of bering sea/aleutian islands safe. |
publishDate |
2002 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.5471 http://www.afsc.noaa.gov/refm/docs/2002/GOAsablefish.pdf |
geographic |
Bering Sea Gulf of Alaska |
geographic_facet |
Bering Sea Gulf of Alaska |
genre |
Bering Sea Alaska Aleutian Islands |
genre_facet |
Bering Sea Alaska Aleutian Islands |
op_source |
http://www.afsc.noaa.gov/refm/docs/2002/GOAsablefish.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.5471 http://www.afsc.noaa.gov/refm/docs/2002/GOAsablefish.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766377937676795904 |