Total 2016 catch estimate was updated, and the projected total catch for 2017 was set to nearly equal the TAC (64,500 t), based on the catch amounts occurring after Oct. 1 in recent years. The 2016 fishery age composition data were added. The 2016 Aleutian Islands survey age composition estimates were added. The estimated average selectivity for 2012-2016 was used for projections. We assume that approximately 75% of the BSAI-wide ABC is likely to be taken under the revised Steller Sea Lion Reasonable and Prudent Alternatives (SSL RPAs) implemented in 2015. This percentage was applied to the 2018 and 2019 maximum permissible ABCs, and those reduced amounts were assumed to be caught in order to estimate the 2018 and 2019 ABCs and OFL values. As in 2016, the sample sizes specified for fishery age composition data were rescaled to have the same means as in the baseline model but varied relative to the number of hauls for the fishery. The 2016 data were added. The survey age composition data were tuned using the Francis (2011) method. The 2016 data were added. 8. As requested, refinements to the time-varying fishery selectivity inputs were made using the statistical weighting method for the time-varying fishery selectivity variance term, as was used for the age composition data.
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The assessment of Bering Sea and Aleutian Islands (BSAI) Greenland turbot has been moved to a biennial schedule according to the stock assessment prio...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
In 2005, BSAI rockfish were moved to a biennial assessment schedule with full assessments in even years to coincide with the frequency of trawl survey...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The Bering Sea and Aleutian Islands (BSAI) skate complex is managed in aggregate, with a single set of harvest specifications applied to the entire co...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The longline survey abundance index increased 14% from 2016 to 2017 following a 28% increase in 2016 from 2015. The lowest point of the time series wa...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
[NOTE: In accordance with the approved schedule, no assessment was conducted for this stock this year, however, a full stock assessment will be conduc...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
This chapter covers the Eastern Bering Sea (EBS) region—the Aleutian Islands region (Chapter 1A) and the Bogoslof Island area (Chapter 1B) are prese...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
In 2005, BSAI rockfish were moved to a biennial assessment schedule with full assessments in even years to coincide with the frequency of trawl survey...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The survey increased 15% from 2016 to 2017 and is now just below the long-term average. The assessment model estimate of 3+ total biomass for 2018 is ...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The Bering Sea and Aleutian Islands (BSAI) arrowtooth flounder (Atheresthes stomias) stock is managed in Tier 3a and is assessed on a biennial basis. ...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
[NOTE: In accordance with the approved schedule, no assessment was conducted for this stock this year, however, a full stock assessment will be conduc...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The estimated ABC and OFL values for 2018 and 2019 in this update are slightly lower than the values for 2017 and 2018 produced in the 2016 assessment...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
In 2005, BSAI rockfish were moved to a biennial assessment schedule with full assessments in even years to coincide with the frequency of trawl survey...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
[NOTE: In accordance with the approved schedule, no assessment was conducted for this stock this year, however, a full stock assessment will be conduc...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The assessment updates last year’s with results and management quantities that are higher than the 2016 assessment primarily due to 1) including 201...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
"Flathead sole" as currently managed by the North Pacific Fishery Management Council (NPFMC) in the Bering Sea and Aleutian Islands (BSAI) represents ...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The Stock Assessment and Fishery Evaluation (SAFE) report summarizes the best available scientific information concerning the past, present, and possi...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
Northern rock sole (Lepidopsetta polyxystra) are assessed on a biennial stock assessment schedule as part of the National Marine Fisheries Service ass...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
Relative to the November edition of last year’s BSAI SAFE report, the following substantive changes have been made in the Aleutian Islands (AI) Paci...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
This document provides a summary of the 2017 recommended ABCs and OFLs relative to the 2016 recommendations for Other flatfish in the Bering Sea/Aleut...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
NOTE: In accordance with the approved schedule, no assessment was conducted for this stock this year, however, a full stock assessment will be conduct...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
The assessment of Bering Sea and Aleutian Islands (BSAI) Greenland turbot has been moved to a biennial schedule according to the stock assessment prio...
2017 | Bering Sea and Aleutian Islands Stock Assessments
Description:
In 2005, BSAI rockfish were moved to a biennial assessment schedule with full assessments in even years to coincide with the frequency of trawl survey...
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