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Stock Assessment Graphs
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Spurdog (Squalus acanthias) in subareas 1-10, 12 and 14 (the Northeast Atlantic and adjacent waters)
Species:
Stock Assessment Graphs
Stock code:
dgs.27.nea
Assessment Year:
2020
Key:
13967
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
HR
Fishing pressure units
ratio
Stock size description
SSB
Stock size units
tonnes
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
677068
F
MSY
Precautionary approach
B
lim
B
pa
F
lim
F
pa
Age and Length
Recruitment
0
F
5-30
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
Low TBiomass
TBiomass
High TBiomass
Low SSB
SSB
High SSB
Landings
Catches
Discards
Low F
F
High F
1905
393141.4
410722
428302.6
1527464
1595770
1664076
318295.4
332529
346762.6
7248
7248
0.00535366
0.00588284
0.00641202
1906
393454.6
411052
428649.4
1520392
1588700
1657008
316473.8
330656
344838.2
2200
2200
0.001633092
0.00179472
0.001956348
1907
393543.4
411145
428746.6
1518598
1586910
1655222
315920.2
330095
344269.8
1428
1428
0.001061426
0.0011665
0.001271574
1908
393599.4
411203
428806.6
1517692
1586010
1654328
315565.4
329740
343914.6
1409
1409
0.00104808
0.00115185
0.00125562
1909
393651.6
411257
428862.4
1516886
1585210
1653534
315231.2
329406
343580.8
2022
2022
0.001505044
0.00165401
0.001802976
1910
393722
411331
428940
1515560
1583890
1652220
314765.4
328936
343106.6
1563
1563
0.001164582
0.00127981
0.001395038
1911
393770.6
411382
428993.4
1514804
1583140
1651476
314441.2
328611
342780.8
1957
1957
0.001459058
0.00160344
0.001747822
1912
393828.4
411443
429057.6
1513746
1582090
1650434
314046.6
328213
342379.4
3199
3199
0.00238698
0.00262312
0.00285926
1913
393922.4
411544
429165.6
1511568
1579920
1648272
313371
327526
341681
4050
4050
0.00302685
0.00332627
0.00362569
1914
394034
411665
429296
1508720
1577080
1645440
312512.4
326652
340791.6
2641
2641
0.001977964
0.00217363
0.002369296
1915
394094.2
411730
429365.8
1507428
1575800
1644172
312034.4
326171
340307.6
2602
2602
0.001950702
0.00214373
0.002336758
1916
394146.8
411787
429427.2
1506308
1574690
1643072
311594.4
325729
339863.6
534
534
0.000400689
0.000440313
0.000479937
1917
394135.6
411773
429410.4
1507316
1575710
1644104
311706
325853
340000
339
339
0.00025421
0.000279354
0.000304498
1918
394114.2
411748
429381.8
1508526
1576930
1645334
311902.8
326062
340221.2
451
451
0.000337926
0.000371306
0.000404686
1919
394091.4
411722
429352.6
1509608
1578020
1646432
312107.2
326276
340444.8
2659
2659
0.001990862
0.00218736
0.002383858
1920
394130.4
411765
429399.6
1508528
1576950
1645372
311788
325950
340112
4396
4396
0.00329396
0.00361912
0.00394428
1921
394213.8
411858
429502.2
1505816
1574250
1642684
311055.2
325200
339344.8
5321
5321
0.00399476
0.00438924
0.00478372
1922
394314.2
411971
429627.8
1502354
1570800
1639246
310105
324230
338355
5401
5401
0.0040649
0.00446646
0.00486802
1923
394406.2
412076
429745.8
1499018
1567480
1635942
309148
323257
337366
5655
5655
0.00426642
0.00468814
0.00510986
1924
394494.2
412178
429861.8
1495652
1564130
1632608
308141.8
322237
336332.2
6355
6355
0.00480648
0.00528176
0.00575704
1925
394583.4
412284
429984.6
1491812
1560310
1628808
306981.8
321062
335142.2
6719
6719
0.00509627
0.00560043
0.00610459
1926
394663.8
412383
430102.2
1487870
1556390
1624910
305762
319828
333894
7277
7277
0.00553582
0.00608364
0.00663146
1927
394734.2
412475
430215.8
1483646
1552190
1620734
304442.2
318494
332545.8
8395
8395
0.00640662
0.00704072
0.00767482
1928
394795.2
412563
430330.8
1478620
1547190
1615760
302892.2
316926
330959.8
9522
9522
0.00729425
0.00801645
0.00873865
1929
394836.8
412638
430439.2
1472820
1541420
1610020
301116.8
315130
329143.2
9320
9320
0.00717077
0.00788097
0.00859117
1930
394847.8
412682
430516.2
1467594
1536230
1604866
299453
313451
327449
11914
11914
0.00920312
0.0101148
0.01102648
1931
394820.8
412703
430585.2
1460196
1528870
1597544
297210.2
311182
325153.8
11838
11838
0.00919574
0.0101072
0.01101866
1932
394749.6
412681
430612.4
1453330
1522050
1590770
295063
309015
322967
16726
16726
0.0130609
0.0143559
0.0156509
1933
394555.8
412568
430580.2
1442128
1510900
1579672
291777
305689
319601
20244
20244
0.01594274
0.0175256
0.01910846
1934
394172.8
412294
430415.2
1428134
1496970
1565806
287704.6
301570
315435.4
20378
20378
0.0162205
0.0178338
0.0194471
1935
393643.6
411882
430120.4
1414780
1483690
1552600
283705.2
297536
311366.8
22266
22266
0.01790728
0.0196911
0.02147492
1936
392896.4
411273
429649.6
1400352
1469350
1538348
279358.2
293157
306955.8
20925
20925
0.01701952
0.0187176
0.02041568
1937
392080.8
410592
429103.2
1388060
1457160
1526260
275493.4
289275
303056.6
23930
23930
0.01965408
0.0216166
0.02357912
1938
390969
409645
428321
1373544
1442760
1511976
271050
284810
298570
18196
18196
0.01511768
0.0166291
0.01814052
1939
390155.2
408949
427742.8
1365494
1434840
1504186
268224.6
281990
295755.4
20119
20119
0.01682468
0.0185055
0.02018632
1940
389176.8
408104
427031.2
1356092
1425580
1495068
265129.8
278896
292662.2
9428
9428
0.00794376
0.00873714
0.00953052
1941
389074
408030
426986
1357778
1427420
1497062
264905.8
278713
292520.2
8740
8740
0.00735464
0.00808668
0.00881872
1942
389099
408067
427035
1360268
1430070
1499872
265073.8
278923
292772.2
10625
10625
0.0089227
0.00980794
0.01069318
1943
389044
408032
427020
1360918
1430890
1500862
264985.6
278867
292748.4
8181
8181
0.00686525
0.00754487
0.00822449
1944
389246.4
408222
427197.6
1364032
1434180
1504328
265676.8
279600
293523.2
8151
8151
0.00682139
0.00749515
0.00816891
1945
389495.4
408451
427406.6
1367112
1437440
1507768
266511.2
280476
294440.8
6776
6776
0.0056551
0.00621292
0.00677074
1946
389876
408793
427710
1371448
1441960
1512472
267774.8
281788
295801.2
10895
10895
0.00905867
0.00995133
0.01084399
1947
389962.6
408878
427793.4
1371570
1442270
1512970
268068
282112
296156
16893
16893
0.01403922
0.015424
0.01680878
1948
389599.8
408575
427550.2
1365766
1436660
1507554
266868.4
280922
294975.6
19491
19491
0.01626608
0.0178754
0.01948472
1949
389001.4
408070
427138.6
1357634
1428730
1499826
264970.2
279035
293099.8
23010
23010
0.01932012
0.0212392
0.02315828
1950
388043.6
407254
426464.4
1346364
1417670
1488976
262130.8
276208
290285.2
24750
24750
0.020962
0.023054
0.025146
1951
386823.6
406210
425596.4
1333842
1405370
1476898
258799.4
272899
286998.6
35301
35301
0.0301926
0.03322
0.0362474
1952
384372.8
404079
423785.2
1311462
1383230
1454998
252819
266927
281035
40550
40550
0.0353087
0.0388753
0.0424419
1953
380947
401071
421195
1284774
1356810
1428846
245540.4
259669
273797.6
38206
38206
0.0340001
0.0374631
0.0409261
1954
377395
397939
418483
1261448
1333780
1406112
238907.8
253079
267250.2
40570
40570
0.0368099
0.0405845
0.0443591
1955
373153
394173
415193
1236700
1309360
1382020
231833.4
246053
260272.6
43127
43127
0.0399532
0.0440786
0.048204
1956
368152
389704
411256
1210342
1283370
1356398
224336.2
238607
252877.8
46951
46951
0.0444833
0.0491107
0.0537381
1957
362120
384272
406424
1181084
1254530
1327976
216165.2
230488
244810.8
45570
45570
0.044279
0.0489266
0.0535742
1958
356007
378743
401479
1154110
1228030
1301950
208635
223011
237387
50394
50394
0.0501278
0.0554348
0.0607418
1959
348629
372023
395417
1123092
1197550
1272008
200265.8
214696
229126.2
47394
47394
0.0484504
0.0536398
0.0588292
1960
222295
361399
500503
1097248
1170610
1243972
192973.8
207459
221944.2
53997
53997
0.0565449
0.0626665
0.0687881
1961
217078
353052
489026
1065400
1137680
1209960
184442
198988
213534
57721
57721
0.0622908
0.069142
0.0759932
1962
210736
342814
474892
1030396
1101580
1172764
175353.6
189969
204584.4
57256
57256
0.0639013
0.0710715
0.0782417
1963
203911
331697
459483
996318
1066370
1136422
166693
181386
196079
62288
62288
0.0718587
0.0801009
0.0883431
1964
195760
318402
441044
957472
1026380
1095288
157137.2
171923
186708.8
60146
60146
0.0721894
0.080638
0.0890866
1965
187573
305015
422457
920855
988655
1056455
148370.8
163247
178123.2
49336
49336
0.0615483
0.0688521
0.0761559
1966
181264
294536
407808
894923
961705
1028487
142404.2
157356
172307.8
42713
42713
0.0547431
0.0612779
0.0678127
1967
176475
286505
396535
875167
941045
1006923
138247.6
153273
168298.4
44116
44116
0.0576647
0.0645581
0.0714515
1968
171897
278949
386001
853335
918435
983535
134048.8
149139
164229.2
56043
56043
0.0749196
0.0838848
0.09285
1969
165476
268770
372064
818813
883291
947769
127394
142476
157558
52074
52074
0.0723194
0.081121
0.0899226
1970
163428
267140
370852
788159
852149
916139
121821.8
136796
151770.2
47557
47557
0.0683888
0.0768534
0.085318
1971
160512
263086
365660
761709
825341
888973
117387.8
132152
146916.2
45653
45653
0.0676959
0.0762085
0.0847211
1972
159305
262401
365497
737047
800439
863831
113352.2
127899
142445.8
50416
50416
0.0770214
0.086876
0.0967306
1973
156543
259167
361791
707465
770761
834057
108077.8
122463
136848.2
49412
49412
0.0784475
0.0887619
0.0990763
1974
154085
256435
358785
678958
742290
805622
102796.8
117077
131357.2
45684
45684
0.0754105
0.0856347
0.0958589
1975
152123
255393
358663
654417
717939
781461
98120.6
112330
126539.4
44119
44119
0.0754037
0.0859297
0.0964557
1976
151874
257268
362662
631890
695762
759634
93593.4
107745
121896.6
44064
44064
0.0778654
0.0890642
0.100263
1977
149352
254234
359116
609646
674032
738418
88910.6
103011
117111.4
42252
42252
0.0772679
0.0887553
0.1002427
1978
141777
239955
338133
588740
653852
718964
84505.1
98567.5
112629.9
47235
47235
0.0891786
0.102886
0.1165934
1979
129416
218424
307432
561934
628008
694082
78910.7
92939.7
106968.7
38201
38201
0.0751026
0.0871782
0.0992538
1980
120434
201978
283522
543493
610689
677885
75249.2
89279.2
103309.2
40968
40968
0.0823771
0.0960533
0.1097295
1981
111523
186439
261355
521378
589858
658338
71184.5
85226.1
99267.7
39962
39962
0.0825539
0.0967953
0.1110367
1982
105531
176741
247951
499470
569390
639310
67494.3
81570.3
95646.3
32402
32402
0.0689288
0.0813224
0.093716
1983
104344
175534
246724
484501
556001
627501
65269.7
79422.9
93576.1
37046
37046
0.0801651
0.0950909
0.1100167
1984
98501
165603
232705
463551
536749
609947
61974.4
76223.6
90472.8
35194
35194
0.0782056
0.0935682
0.1089308
1985
92562
155728
218894
443134
518118
593102
59006.4
73382.8
87759.2
38674
38674
0.0876862
0.105733
0.1237798
1986
90706
154396
218086
418421
495329
572237
55496.6
70022.8
84549
30910
30910
0.071935
0.0875636
0.1031922
1987
88616
151916
215216
400675
479593
558511
53957
68691.6
83426.2
42356
42356
0.100564
0.123676
0.146788
1988
83740
146326
208912
370608
451678
532748
49724.4
64704.2
79684
35569
35569
0.088136
0.110256
0.132376
1989
83931
149195
214459
347139
430545
513951
46794.5
62082.9
77371.3
30279
30279
0.0775187
0.0985767
0.1196347
1990
79297
141481
203665
328293
414059
499825
44668.4
60310.2
75952
29906
29906
0.078645
0.101757
0.124869
1991
83234
150016
216798
309995
398381
486767
42032.6
58043.4
74054.2
29563
29563
0.079673
0.105053
0.130433
1992
75017
139977
204937
291395
382497
473599
39052.2
55429.6
71807
29046
29046
0.079903
0.107397
0.134891
1993
66621
125495
184369
272520
366360
460200
36209.5
52948.3
69687.1
25637
25637
0.0723368
0.0999468
0.1275568
1994
64749
122513
180277
256813
353561
450309
33538.7
50648.3
67757.9
20851
20851
0.0597438
0.0848058
0.1098678
1995
56427
110081
163735
245190
344800
444410
31659.2
49159.2
66659.2
21318
21318
0.060904
0.087758
0.114612
1996
53730
110676
167622
232820
335472
438124
30072
47974.4
65876.8
17295
17295
0.0494091
0.0728851
0.0963611
1997
52530
111196
169862
224063
329881
435699
29198.6
47537.6
65876.6
15348
15348
0.0434636
0.0653556
0.0872476
1998
51429
110517
169605
216713
325745
434777
28685.7
47500.7
66315.7
13919
13919
0.0389515
0.0596335
0.0803155
1999
50107
108857
167607
210211
322461
434711
28432.3
47772.1
67111.9
12385
12385
0.0342039
0.0533917
0.0725795
2000
50842
110300
169758
204801
320323
435845
28376.5
48294.1
68211.7
15891
15891
0.0431601
0.0685221
0.0938841
2001
47820
109414
171008
195426
314278
433130
27578.2
48116.2
68654.2
16693
16693
0.0449026
0.0733626
0.1018226
2002
47299
111693
176087
185051
307387
429723
26451.1
47663.1
68875.1
11170
11170
0.029765
0.050361
0.070957
2003
48684
117282
185880
180239
306239
432239
26269.6
48209.6
70149.6
12247
12247
0.0320943
0.0554123
0.0787303
2004
48476
119778
191080
174264
304086
433908
25736.6
48416.6
71096.6
9366
9366
0.0241732
0.0428418
0.0615104
2005
48905
122471
196037
171178
304972
438766
25606.5
49012.5
72418.5
8426
8426
0.0212829
0.0387717
0.0562605
2006
47571
121151
194731
168892
306748
444604
25314.2
49416.2
73518.2
4109
4109
0.0101855
0.0187455
0.0273055
2007
49380
126186
202992
171039
313169
455299
25986.5
50762.5
75538.5
2929
2929
0.007071
0.0131054
0.0191398
2008
52185
132629
213073
174497
321145
467793
26833.8
52279.8
77725.8
1836
1836
0.00433513
0.00794633
0.01155753
2009
56046
140680
225314
179235
330671
482107
28024.4
54150.4
80276.4
2640
2640
0.0060472
0.0111042
0.0161612
2010
65161
156007
246853
183564
340320
497076
29090.2
55908.2
82726.2
1249
2468.33
1219.33
0.0054881
0.0101373
0.0147865
2011
55653
139083
222513
187504
349172
510840
30146.7
57666.7
85186.7
580
2468.33
1888.33
0.00532275
0.00989675
0.01447075
2012
56509
139111
221713
191446
358102
524758
31155.7
59401.7
87647.7
261
2468.33
2207.33
0.00515361
0.00965161
0.01414961
2013
58469
144843
231217
195615
367455
539295
32111.9
61123.9
90135.9
333
2468.33
2135.33
0.00498065
0.00939645
0.01381225
2014
58638
143472
228306
199750
376770
553790
33020.1
62862.1
92704.1
383
2468.33
2085.33
0.00480547
0.00913487
0.01346427
2015
59910
148238
236566
204045
386343
568641
33892.1
64638.1
95384.1
263
2468.33
2205.33
0.00464195
0.00888315
0.01312435
2016
64445
158787
253129
208608
396400
584192
34727.4
66443.4
98159.4
373
2468.33
2095.33
0.00450084
0.00865784
0.01281484
2017
66038
162968
259898
213253
406569
599885
35522.4
68260.4
100998.4
296
2468.33
2172.33
0.0043684
0.008437
0.0125056
2018
66423
166211
265999
217990
416836
615682
36298.8
70102.8
103906.8
363
2468.33
2105.33
0.00423644
0.00820304
0.01216964
2019
63669
158133
252597
222432
426532
630632
37105.4
72031.4
106957.4
454
2468.33
2014.33
0.00412137
0.00799617
0.01187097
2020
93668
171756
249844
227399
436999
646599
37996.8
74112.8
110228.8
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
HRmsy
0.033
Calculated each time the assessment is updated
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data