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Stock Assessment Graphs
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Herring (Clupea harengus) in divisions 7.a South of 52°30’N, 7.g-h, and 7.j-k (Irish Sea, Celtic Sea, and southwest of Ireland)
Species:
Stock Assessment Graphs
Stock code:
her.27.irls
Assessment Year:
2020
Key:
13746
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F
Fishing pressure units
Year-1
Stock size description
SSB
Stock size units
tonnes
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
54000
F
MSY
0.26
Precautionary approach
B
lim
34000
B
pa
54000
F
lim
0.45
F
pa
0.27
Age and Length
Recruitment
1
F
2–5
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
Low SSB
SSB
High SSB
Catches
Low F
F
High F
1958
76604.4
416389
756175.6
4865.2
212881
420894.8
22978
0.00344444
0.127066
0.2575844
1959
972948.8
1594650
2216451.2
43873.8
203797
363726.2
15086
0.01707332
0.109652
0.2022267
1960
146411.2
368441
590468.8
65493.92
194358
323226.08
18283
0.0479506
0.123437
0.1989294
1961
197367.6
399134
600892.4
63684.52
164157
264635.48
15372
0.05495408
0.117577
0.1802059
1962
536186
853511
1170834
74913.64
160451
245986.36
21552
0.09287108
0.189649
0.2864289
1963
215108.32
407405
599691.7
74682.92
148618
222557.08
17349
0.07420544
0.151007
0.2278146
1964
972922.8
1392530
1812077.2
102911.84
168268
233628.16
10599
0.04730636
0.0949517
0.1425976
1965
225448.04
419978
614512
113725.6
172804
231874.4
19126
0.07417896
0.137735
0.201281
1966
474748.4
739764
1004771.6
115572.44
167733
219887.56
27030
0.10909708
0.196858
0.2846229
1967
504122
772745
1041358
114514.2
161269
208025.8
27658
0.12439332
0.223339
0.3222867
1968
612194.8
903981
1195765.2
120493.4
164268
208046.6
30236
0.1366934
0.240736
0.3447866
1969
268823.08
464186
659556.9
104699.28
143568
182440.72
44389
0.21143888
0.360054
0.5086611
1970
106940.72
250351
393759.3
75874.4
108429
140985.6
31727
0.18501676
0.328816
0.4726232
1971
553564.8
823299
1093035.2
71791.16
99042.6
126294.84
31396
0.24724
0.451075
0.65492
1972
142187.68
280943
419692.3
63274.72
86731.6
110189.28
38203
0.3299656
0.556624
0.7832744
1973
195088.24
326911
458731.8
46933.64
65242
83550.36
26936
0.2995096
0.516067
0.7326304
1974
80252.4
161218
242187.6
35533.168
50603.9
65674.83
19940
0.2785976
0.492123
0.7056424
1975
115074.44
203101
291125.6
27604.664
40093.2
52581.34
15588
0.2772568
0.513773
0.7502832
1976
140594.36
227445
314285.6
26240.06
37218.9
48197.94
9771
0.20129228
0.384858
0.5684277
1977
113962.88
185840
257717.1
27047.58
37807
48566.42
7833
0.1534208
0.288211
0.4229992
1978
84986.52
146362
207733.5
25840.164
36539.8
47239.84
7559
0.1405584
0.265921
0.3912816
1979
183527.52
279745
375952.5
26118.704
36354.6
46591.3
10321
0.2265016
0.422576
0.6186584
1980
92637.6
167492
242342.4
23371.936
33306.1
43240.06
13130
0.292862
0.5409
0.788938
1981
325418.08
467127
608841.9
26581.924
36828.7
47076.08
17103
0.4629132
0.832039
1.2011668
1982
530796.8
728109
925423.2
43674.336
57841.9
72009.66
13000
0.2435192
0.454177
0.6648408
1983
578916.8
788475
998043.2
59372.316
76920.1
94467.68
24981
0.3193136
0.551749
0.7841864
1984
483654.16
669958
856265.8
61738.472
79577.6
97417.53
26779
0.27683688
0.468475
0.6601031
1985
472510.28
646179
819849.7
67149.576
85739.1
104328.42
20426
0.18638292
0.31716
0.4479371
1986
489999.24
658128
826260.8
74074.08
93824.5
113575.92
25024
0.21604576
0.363225
0.5104142
1987
952162.8
1207080
1462037.2
84901.32
106334
127758.68
26200
0.22809576
0.386063
0.5440242
1988
347189.32
478279
609370.7
86865.68
109884
132894.32
20447
0.13401616
0.229767
0.3255238
1989
427740.36
579069
730399.6
75986.12
96523.3
117059.88
23254
0.17126276
0.283505
0.3957572
1990
365782.24
506130
646477.8
70017.92
90006.2
109994.08
18404
0.14488528
0.246275
0.3476747
1991
127822.56
208702
289577.4
54441.428
71730.2
89018.57
25562
0.23051196
0.378984
0.527448
1992
746631.6
967209
1187788.4
55572.332
71591.6
87611.67
21127
0.28143
0.481837
0.68225
1993
245064.48
361611
478155.5
57318.824
74273.7
91229.18
18618
0.1887244
0.323199
0.4576756
1994
583118.2
772174
961221.8
63532.712
81041.5
98549.29
19300
0.1907602
0.320131
0.4494998
1995
545088.68
725049
905011.3
65384.792
82504.6
99625.21
23305
0.23425836
0.385495
0.5367216
1996
242144.08
353773
465395.9
57126.548
72951.4
88775.45
18816
0.18413132
0.306988
0.4298487
1997
257723.56
374420
491116.4
46773.796
60326.7
73880.2
20496
0.24705412
0.406313
0.5655659
1998
159978.88
249788
339601.1
36597.588
48356.6
60116.41
18041
0.26727084
0.443815
0.6203492
1999
352862.68
488919
624977.3
32016.084
42320.2
52623.92
18485
0.375432
0.621506
0.867588
2000
344922.68
478526
612137.3
31791.44
42347.7
52904.56
17191
0.378966
0.629651
0.880334
2001
352131.56
493225
634328.4
30853.676
41902.4
52950.32
15269
0.3076524
0.531206
0.7547676
2002
381498.72
539997
698501.3
40056.828
53934.6
67813.17
7465
0.11266248
0.209022
0.3053775
2003
74538.68
142293
210041.3
30864.668
42921.6
54979.33
11536
0.16898136
0.306147
0.4433186
2004
233119.52
360298
487480.5
26606.148
39127.9
51649.85
12743
0.21281092
0.392493
0.5721691
2005
726692
1054640
1382508
36921.992
54394.9
71868.01
9494
0.152911
0.307798
0.462689
2006
216195.48
354347
492504.5
44902.4
66923.3
88943.6
6944
0.06477736
0.13315
0.2015226
2007
472859.2
720272
967680.8
46371.84
69590.4
92808.16
7636
0.06599676
0.131885
0.1977832
2008
164169.2
292507
420850.8
54876.52
82391.1
109905.48
5872
0.03938692
0.0796124
0.1198371
2009
689128.8
1006110
1323071.2
65055.48
93744.5
122432.52
5745
0.03851032
0.0765009
0.1144917
2010
488277.6
746881
1005482.4
72934.6
101575
130225.4
8370
0.05257684
0.101028
0.1494832
2011
643636.4
952159
1260683.6
80472.88
109720
138967.12
11470
0.069633
0.130054
0.190467
2012
391817.2
628844
865862.8
72919.44
99596.5
126274.56
21820
0.1410932
0.253457
0.3658268
2013
185201.56
365501
545798.4
63102.16
87805.6
112509.84
16247
0.11619596
0.213898
0.311604
2014
134665.08
303675
472674.9
48278.84
67968.9
87659.16
19574
0.17789724
0.322407
0.4669228
2015
54231.28
172583
290928.7
30297.908
43885.9
57474.09
18355
0.2593172
0.459589
0.6598628
2016
91623.24
209482
327336.8
17266.16
26044.8
34823.84
16318
0.432262
0.764582
1.096898
2017
20471.56
61806
103140.4
6532.868
12033.6
17535.13
10767
0.658456
1.15607
1.653744
2018
10430.76
56038.5
101645.2
1972.144
6462.65
10953.26
4418
0.3875272
1.10723
1.8268728
2019
0
451705
1043678.8
0
11750.9
24699.74
1841
0.0201044
0.491732
1.0035644
2020
52405
17485
2021
2022
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data