NEFMC Staff Whiting PDT Chair Council meeting December 5, 2019 - PowerPoint PPT Presentation

6. Small-Mesh Multispecies (Dec. 3 - 5, 2019) #0 Revised Andrew Applegate NEFMC Staff Whiting PDT Chair Council meeting December 5, 2019

Southern red hake Survey biomass 2

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2018 Red hake Catch 5

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Conceptual approaches Post- season AM (5000 → 400 lbs. possession limit) 1. Large increase in bycatch (squid and scallop)  Reduced trigger to 41% of TAL – first year  400 lbs. possession limit year-round 2. 7

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Conceptual approaches Post- season AM (5000 → 400 lbs. possession limit) 1. Large increase in bycatch (squid and scallop)  Reduced trigger to 41% of TAL – first year  400 lbs. possession limit year-round 2. Adaptive control rule based on observed changes in 3. biomass Tmax   Expected rate of change (6.7%)  Maximum negative deviation/Intervention frequency Proportion of ACL  9

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Conceptual approaches 1. 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 12

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Southern red hake Spring survey, 2011-2019 16

Southern red hake Spring survey, 2011-2019 17