andrew applegate nefmc staff council meeting whiting pdt chair revised · 2019. 12. 2. · council...

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Andrew Applegate NEFMC Staff Whiting PDT Chair Council meeting December 5, 2019

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Page 1: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

Andrew Applegate

NEFMC Staff

Whiting PDT ChairCouncil meeting

December 5, 2019

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Revised
Page 2: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

Southern red hake

Survey biomass

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Page 3: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 4: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 5: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

2018 Red hake Catch

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Page 6: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 7: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

Conceptual approaches1. Post-season AM (5000 → 400 lbs. possession limit)

Large increase in bycatch (squid and scallop)

Reduced trigger to 41% of TAL – first year

2. 400 lbs. possession limit year-round

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Page 8: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 9: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

Conceptual approaches1. Post-season AM (5000 → 400 lbs. possession limit)

Large increase in bycatch (squid and scallop)

Reduced trigger to 41% of TAL – first year

2. 400 lbs. possession limit year-round

3. Adaptive control rule based on observed changes in biomass

Tmax

Expected rate of change (6.7%)

Maximum negative deviation/Intervention frequency

Proportion of ACL9

Page 10: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 11: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 12: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

Conceptual approaches1. Post-season AM (5000 → 400 lbs. possession

limit)

2. 400 lbs. possession limit year-round

3. Adaptive control rule

4. Biomass based control rule

No analytic assessment

5. Witch-flounder approach based on life history estimates

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Page 13: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 14: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 15: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

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Page 16: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

Southern red hakeSpring survey, 2011-2019

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Page 17: Andrew Applegate NEFMC Staff Council meeting Whiting PDT Chair Revised · 2019. 12. 2. · Council meeting Whiting PDT Chair December 5, 2019. Revised. Southern red hake Survey biomass

Southern red hakeSpring survey, 2011-2019

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