C s a s canadian Science Advisory Secretariat



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Table 13. Estimates of the mid-year vulnerable biomass (mt) for 2009 from the four models and three fishery selectivities. Note that the vulnerable biomass is conditional on the selectivity, and assumes that a selectivity is applicable to the entire population. The values do not apply separately to each region.






Model 1

Model 2

Model 3

Model 4

Differing assumptions:

estimated

=2.0

=2.5

=3.2

Differing data

CPUE by weight,

integrated



CPUE by weight,

integrated



CPUE by weight,

integrated



CPUE by weight,

integrated


















Biomass removed using:













Basin selectivity

4,894

4,406

4,562

4,801

NF Gulf selectivity

4,416

4,747

4,603

4,562

Shelf selectivity

5,093

4,747

4,856

5,030





















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