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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