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Spurdog (Squalus acanthias) in the Northeast Atlantic
(
Link to advice
)
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View source data
DOI:
10.17895/ices.data.6766
Species:
Squalus acanthias
Stock code:
dgs-nea
Assessment Year:
2016
Purpose:
Advice
Assessment Key:
7763
Stock Key:
136526
Year
Recruitment (pups)
High
Low
Total Biomass
High
Low
Landings
Discards
Harvest Rate
High
Low
thousands
tonnes
tonnes
tonnes
Year-1
1905
444
463
425
1653940
1723978
1583902
7248
0.0057
0.0062
0.0052
1906
444
463
425
1646860
1716900
1576820
2200
0.00173
0.00189
0.00157
1907
444
463
425
1645040
1715084
1574996
1428
0.00112
0.00123
0.00102
1908
444
463
425
1644090
1714138
1574042
1409
0.00111
0.00121
0.00101
1909
444
463
425
1643250
1713300
1573200
2022
0.00159
0.00174
0.00145
1910
444
463
425
1641870
1711924
1571816
1563
0.00123
0.00135
0.00112
1911
444
463
425
1641050
1711106
1570994
1957
0.00155
0.00169
0.00141
1912
444
463
425
1639910
1709970
1569850
3199
0.0025
0.0028
0.0023
1913
444
463
425
1637640
1707702
1567578
4050
0.0032
0.0035
0.0029
1914
444
462
425
1634670
1704736
1564604
2641
0.0021
0.0023
0.00191
1915
444
462
425
1633260
1703330
1563190
2602
0.0021
0.0023
0.00188
1916
444
462
425
1631990
1702066
1561914
534
0.00042
0.00046
0.00039
1917
444
462
425
1632850
1702928
1562772
339
0.00027
0.00029
0.00025
1918
444
462
425
1633900
1703982
1563818
451
0.00036
0.00039
0.00033
1919
444
462
425
1634830
1704914
1564746
2659
0.0021
0.0023
0.00192
1920
444
462
425
1633570
1703656
1563484
4396
0.0035
0.0038
0.0032
1921
444
462
425
1630680
1700768
1560592
5321
0.0042
0.0046
0.0039
1922
444
462
425
1627030
1697122
1556938
5401
0.0043
0.0047
0.0039
1923
443
462
425
1623500
1693598
1553402
5655
0.0045
0.0049
0.0041
1924
443
462
425
1619920
1690026
1549814
6355
0.0051
0.0056
0.0046
1925
443
462
424
1615860
1685974
1545746
6719
0.0054
0.0059
0.0049
1926
443
462
424
1611680
1681804
1541556
7277
0.0059
0.0064
0.0053
1927
443
462
424
1607210
1677344
1537076
8395
0.0068
0.0074
0.0062
1928
443
462
424
1601910
1672058
1531762
9522
0.0077
0.0084
0.0070
1929
443
461
424
1595810
1665972
1525648
9320
0.0076
0.0083
0.0069
1930
442
461
423
1590260
1660438
1520082
11914
0.0098
0.0106
0.0089
1931
442
461
423
1582500
1652698
1512302
11838
0.0098
0.0106
0.0089
1932
442
461
423
1575250
1645470
1505030
16726
0.0139
0.0151
0.0126
1933
441
460
422
1563620
1633868
1493372
20244
0.0169
0.0184
0.0154
1934
440
459
421
1549130
1619412
1478848
20378
0.0172
0.0188
0.0156
1935
439
458
420
1535240
1605562
1464918
22266
0.0190
0.021
0.0173
1936
438
457
418
1520220
1590590
1449850
20925
0.0181
0.0197
0.0164
1937
436
456
417
1507290
1577716
1436864
23930
0.021
0.023
0.0190
1938
435
454
415
1492070
1562562
1421578
18196
0.0160
0.0175
0.0146
1939
434
453
414
1483260
1553826
1412694
20119
0.0179
0.0195
0.0162
1940
432
452
413
1473060
1543708
1402412
9428
0.0084
0.0092
0.0077
1941
432
452
413
1473910
1544646
1403174
8740
0.0078
0.0085
0.0071
1942
432
452
413
1475530
1546356
1404704
10625
0.0095
0.0103
0.0086
1943
432
452
412
1475290
1546212
1404368
8181
0.0073
0.0080
0.0066
1944
432
452
413
1477510
1548532
1406488
8151
0.0073
0.0079
0.0066
1945
433
452
413
1479680
1550806
1408554
6776
0.0060
0.0066
0.0055
1946
433
453
413
1483130
1554364
1411896
10895
0.0096
0.0105
0.0088
1947
433
453
413
1482380
1553724
1411036
16893
0.0150
0.0163
0.0136
1948
433
452
413
1475730
1547194
1404266
19491
0.0174
0.0189
0.0158
1949
432
451
412
1466760
1538352
1395168
23010
0.021
0.023
0.0188
1950
430
450
410
1454680
1526408
1382952
24750
0.022
0.024
0.020
1951
429
449
409
1441360
1513238
1369482
35301
0.032
0.035
0.029
1952
426
446
405
1418180
1490222
1346138
40550
0.038
0.041
0.034
1953
421
442
401
1390690
1462918
1318462
38206
0.036
0.040
0.033
1954
417
438
396
1366550
1438988
1294112
40570
0.040
0.043
0.036
1955
412
434
391
1340970
1413644
1268296
43127
0.043
0.047
0.039
1956
407
429
385
1313760
1386700
1240820
46951
0.048
0.052
0.043
1957
400
422
378
1283630
1356874
1210386
45570
0.048
0.052
0.043
1958
394
416
371
1255760
1329350
1182170
50394
0.054
0.059
0.049
1959
386
409
363
1223820
1297804
1149836
47394
0.052
0.057
0.047
1960
373
517
230
1195270
1267950
1122590
53997
0.061
0.067
0.055
1961
364
504
224
1160660
1232066
1089254
57721
0.067
0.074
0.061
1962
353
489
217
1122800
1192918
1052682
57256
0.069
0.076
0.062
1963
341
472
210
1085790
1154576
1017004
62288
0.078
0.086
0.070
1964
327
452
201
1043920
1111348
976492
60146
0.079
0.087
0.071
1965
312
432
192
1004280
1070374
938186
49336
0.067
0.074
0.060
1966
301
417
186
975392
1040236
910548
42713
0.060
0.066
0.054
1967
293
405
181
952784
1016486
889082
44116
0.063
0.070
0.057
1968
284
393
176
928222
990908
865536
56043
0.082
0.091
0.074
1969
274
378
169
891128
952952
829304
52074
0.080
0.088
0.071
1970
271
376
166
858063
919155
796971
47557
0.076
0.084
0.068
1971
267
370
163
829351
889833
768869
45653
0.075
0.083
0.067
1972
265
369
161
802562
862546
742578
50416
0.086
0.096
0.077
1973
261
364
158
771003
830625
711381
49412
0.088
0.098
0.078
1974
258
360
155
740658
800038
681278
45684
0.085
0.095
0.075
1975
256
359
153
714433
773715
655151
44119
0.086
0.096
0.076
1976
257
362
152
690372
749696
631048
44064
0.089
0.100
0.078
1977
253
357
149
666731
726245
607217
42252
0.089
0.100
0.078
1978
238
335
141
644621
704525
584717
47235
0.104
0.117
0.090
1979
216
303
128
616846
677362
556330
38201
0.088
0.100
0.076
1980
199
279
119
597621
658901
536341
40968
0.097
0.111
0.084
1981
183
256
110
574916
637112
512720
39962
0.099
0.112
0.085
1982
173
241
104
552616
615872
489360
32402
0.083
0.095
0.071
1983
171
239
102
537422
601864
472980
37046
0.098
0.112
0.083
1984
160
224
96
516383
582125
450641
35194
0.097
0.112
0.081
1985
149
209
89
496009
563135
428883
38674
0.110
0.128
0.092
1986
147
207
87
471512
540154
402870
30910
0.091
0.107
0.076
1987
144
203
84
454068
524306
383830
42356
0.130
0.153
0.107
1988
137
195
79
424407
496375
352439
35569
0.117
0.139
0.094
1989
138
198
78
401474
475334
327614
30279
0.105
0.127
0.084
1990
129
185
73
383145
458913
307377
29906
0.109
0.133
0.085
1991
136
196
76
365541
443461
287621
29563
0.114
0.140
0.087
1992
126
184
68
347695
427849
267541
29046
0.117
0.147
0.088
1993
111
163
59
329566
411954
247178
25637
0.110
0.140
0.081
1994
107
158
57
314727
399497
229957
20851
0.095
0.122
0.067
1995
96
142
49
303953
391047
216859
21318
0.099
0.129
0.069
1996
95
145
46
292581
382159
203003
17295
0.083
0.110
0.056
1997
95
145
44
284899
377055
192743
15348
0.075
0.101
0.050
1998
93
144
43
278661
373423
183899
13919
0.069
0.094
0.045
1999
91
141
41
273278
370634
175922
12385
0.063
0.086
0.040
2000
92
142
41
269029
369013
169045
15891
0.081
0.112
0.050
2001
90
142
38
260869
363525
158213
16693
0.088
0.123
0.052
2002
91
145
36
251793
357243
146343
11170
0.061
0.088
0.035
2003
94
152
36
248345
356735
139955
12247
0.068
0.098
0.038
2004
95
154
35
243774
355224
132324
9366
0.053
0.078
0.028
2005
95
157
34
242106
356728
127484
8426
0.049
0.072
0.025
2006
93
154
33
241228
359076
123380
4109
0.024
0.035
0.0120
2007
96
159
33
244803
366033
123573
2929
0.0166
0.025
0.0083
2008
100
165
35
249716
374510
124922
1836
0.0101
0.0151
0.0051
2009
106
174
37
255924
384474
127374
2640
0.0142
0.021
0.0072
2010
117
190
43
261887
394623
129151
2468
0.0130
0.0195
0.0065
2011
104
170
37
267137
403653
130621
2468
0.0128
0.0192
0.0064
2012
106
174
38
272494
412912
132076
2468
0.0126
0.0189
0.0062
2013
111
183
40
278191
422707
133675
2468
0.0123
0.0187
0.0060
2014
112
184
40
283923
432581
135265
2468
0.0121
0.0184
0.0058
2015
117
193
41
289940
442870
137010
2468
0.0118
0.0181
0.0056
2016
121
183
59
296104
453338
138870
Average
305
354
255
1024698
1103630
945766
23604
2468
0.044
0.052
0.035
Fishing pressure
Stock size
2013
2014
2015
2014
2015
2016
Maximum Sustainable Yield
F
MSY
Appropriate
MSY B
Trigger
Below trigger
Precautionary Approach
F
pa
, F
lim
Undefined
B
pa
, B
lim
Undefined
Management plan
F
MGT
Not applicable
B
MGT
Not applicable