C s a s canadian Science Advisory Secretariat



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N

284,362

383,292

339,358

299,446




Biomass

14,292

20,404

17,672

15,220



















1991

SSN

20,935

30,661

26,385

22,516




N

347,711

397,555

374,428

354,463




Biomass

16,587

20,335

18,636

17,131



















2001

SSN

10,999

17,031

14,377

12,062




N

190,024

206,680

198,163

192,162




Biomass

8,082

9,664

8,908

8,299



















2009

SSN

11,339

14,207

12,886

11,809




N

206,956

196,911

198,970

204,482




Biomass

9,890

10,078

9,903

9,891



















2009/1961

SSN

0.119

0.164

0.162

0.160




N

0.272

0.215

0.236

0.262




Biomass

0.237

0.201

0.214

0.231



















2009/2001

SSN

1.031

0.834

0.896

0.979




N

1.089

0.953

1.004

1.064




Biomass

1.223

1.043

1.112

1.192




















Table 12. Estimates of population abundance (N) and female spawning stock number (SSN) by year obtained from four models fit to the porbeagle data.



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