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Sprat (Sprattus sprattus) in Subarea 4 (North Sea)
Species:
Stock Assessment Graphs
Stock code:
spr.27.4
Assessment Year:
2017
Key:
8296
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
F
MSY
Precautionary approach
B
lim
90000
B
pa
142000
F
lim
F
pa
Age and Length
Recruitment
0
F
1-2
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
Low SSB
SSB
High SSB
Landings
Catches
Low F
F
High F
1974
165719703.251257
262510000
415831664.841443
320141.090937169
488270
744695.384782048
379747
379747
0.46512265
0.92314
1.38115735
1975
299805634.060484
464350000
719202369.814368
299242.062413001
453310
686701.443115949
637282
637282
1.60555105
2.0966
2.58764895
1976
131044160.017161
203950000
317416682.243244
204001.103431856
300820
443589.132007944
557359
557359
0.6958922
1.0901
1.4843078
1977
153567118.831391
241140000
378652019.016155
202705.263410317
295490
430745.302963634
318769
318769
1.1656258
1.6788
2.1919742
1978
154547022.739402
238900000
369293493.90468
100013.380821812
144970
210134.89122464
378632
378632
1.22826755
1.6902
2.15213245
1979
133624824.801261
209360000
328019959.354036
108246.493498774
160340
237503.449479324
368667
368667
0.95456285
1.3883
1.82203715
1980
172033802.226836
266790000
413737900.218873
106984.289590453
155230
225232.629877185
300239
300239
0.9067338
1.3699
1.8330662
1981
63056963.1469592
101730000
164121333.846682
104932.150266341
153240
223787.443032438
203897
203897
0.98633355
1.4305
1.87466645
1982
43886782.0313978
66726000
101451026.252384
47930.627385188
69546
100909.301210079
123379
123379
0.37850125
0.70051
1.02251875
1983
51175301.5057672
78037000
118998289.991779
51825.3274687255
73745
104935.661589052
85168
85168
0.99538615
1.4562
1.91701385
1984
28675045.6157563
43364000
65577454.3900549
44514.0119566136
64246
92724.7025054265
85617
85617
0.5575662
0.95309
1.3486138
1985
18709699.6276957
27582000
40661621.4657903
25473.2189117898
35816
50358.2158360947
40921
40921
0.9380231
1.3447
1.7513769
1986
106137493.715484
155960000
229169926.182755
9856.06538234723
13361
18112.3312472879
15687
15687
0.25972065
0.60851
0.95729935
1987
86848897.6925064
132120000
200989245.272898
53418.981004408
76959
110872.344804018
37551
37551
0.12992047
0.28737
0.44481953
1988
157247783.174446
254290000
411219813.688974
56359.8933844082
76889
104895.839328105
95972
95972
0.086674
0.31171
0.536746
1989
66513795.1359797
101160000
153852980.10855
71842.1333327098
108970
165285.471758026
51943
51943
0.02695568
0.093111
0.15926632
1990
107910533.542513
156140000
225925114.070494
59519.6896002365
84464
119862.306808328
67386
67386
1.4420079
1.8779
2.3137921
1991
156536034.870353
226830000
328690125.200971
88519.4756765774
124660
175555.892996686
114872
114872
0.40392645
0.67698
0.95003355
1992
156399180.839845
226960000
329354932.189497
114094.388565026
157920
218579.780422652
148236
148236
0.4575478
0.77727
1.0969922
1993
160743251.330216
230840000
331504465.40696
161407.859962068
222520
306770.379160199
209193
209193
1.3159014
1.7513
2.1866986
1994
78199757.091032
113400000
164445012.08655
39769.5154854047
53414
71739.7574794961
313687
313687
0.6507255
1.0095
1.3682745
1995
48779226.2451649
69753000
99744940.2855646
128021.106287255
174740
238508.074844216
387626
387626
1.0398125
1.4305
1.8211875
1996
72285229.5265516
105340000
153510138.553604
94603.1663728891
126210
168376.648591382
84573
84573
0.4190451
0.68162
0.9441949
1997
86099980.3249351
123960000
178467887.472326
178170.42359462
245850
339238.248866268
104797
104797
0.37727265
0.6675
0.95772735
1998
105736544.921098
154050000
224438981.978358
175642.650571213
237050
319926.295334612
172063
172063
1.05272075
1.4124
1.77207925
1999
86068937.5206718
127820000
189824027.931982
133606.97870289
184790
255580.54250995
215412
215412
0.4883588
0.7788
1.0692412
2000
72875283.3018697
106720000
156282869.63665
171155.712225467
238020
331005.723755039
195170
195170
0.69040495
1.0995
1.50859505
2001
65777246.2555873
92743000
130763516.848645
76823.2989578086
106330
147169.791630653
131538
131538
1.1249204
1.5238
1.9226796
2002
94549318.6369255
130810000
180977042.951606
109693.366433644
148000
199683.907169084
157248
157248
1.30508105
1.6744
2.04371895
2003
70919759.4747099
101290000
144665805.073106
56092.7201162926
74879
99957.0822983041
159515
159515
0.8565712
1.2011
1.5456288
2004
161509040.264083
224470000
311974988.010657
121494.212594777
162740
217988.223754607
207779
207779
1.66400805
2.0126
2.36119195
2005
61267325.2324993
85901000
120439104.742993
104531.224255625
141700
192085.093645303
232048
232048
0.7485351
1.0473
1.3460649
2006
70415681.3411318
99945000
141857649.244461
107657.128076743
147210
201294.465932178
74648
74648
0.9164298
1.3059
1.6953702
2007
58909315.6874557
81246000
112052099.722585
166804.831863481
226530
307640.014541057
85080
85080
1.2221071
1.5643
1.9064929
2008
117817398.978069
160300000
218100978.487763
99767.3006289769
133140
177676.04704393
63623
63623
0.77775855
1.1479
1.51804145
2009
94040249.573266
130730000
181734235.899545
128647.7919193
167980
219337.463776297
162714
162714
0.5481452
0.88083
1.2135148
2010
133616500.3991
183720000
252611303.98703
180125.792475308
241240
323089.418790359
126077
126077
0.4875151
0.7797
1.0718849
2011
127508468.496251
175590000
241802356.060033
169202.883047117
223130
294244.376947975
119083
119083
0.5096836
0.86224
1.2147964
2012
124477097.020475
174580000
244849672.184971
66428.1213783597
88135
116935.088089523
86196
86196
0.5281143
0.90426
1.2804057
2013
287353991.220564
394950000
542833951.383226
113428.383232987
150990
200990.082466148
81268
81268
0.11571415
0.40808
0.70044585
2014
337570619.667058
482590000
689909294.623152
317111.572356052
422070
561767.845860829
192679
192679
0.41986565
0.66502
0.91017435
2015
209087300.330038
318150000
484101245.461721
278539.297706745
370460
492715.436313375
286086
286086
0.8178498
1.1152
1.4125502
2016
353079831.392079
758510000
1629482538.92507
183548.517015754
246170
330156.134657295
252743
252743
1.12398855
1.5698
2.01561145
2017
153915000
237333.164802516
409055.235037086
705026.562345286
Custom reference points
Custom fish data column names
Custom fish data
Sensivity data