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Stock Assessment Graphs
Stock assessment graphs
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Norway lobster (Nephrops norvegicus) in divisions 8.a and 8.b, Functional Units 23-24 (northern and central Bay of Biscay)
Species:
Stock Assessment Graphs
Stock code:
nep.fu.2324
Assessment Year:
2019
Key:
13194
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
Harvest Rate
Fishing pressure units
%
Stock size description
UW TV index
Stock size units
millions
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
F
MSY
7.7
Precautionary approach
B
lim
B
pa
F
lim
F
pa
Age and Length
Recruitment
0
F
Fish data
Year
Low SSB
SSB
High SSB
Landings
Discards
F
1987
5397.08421112537
1766.61641146628
1988
5874.69065155647
4122.51511298218
1989
4835.05880312587
2634.47250852929
1990
4971.63026328968
627.188623024367
1991
4753.98391309372
1212.62611991702
1992
5680.50017152844
1353.7355736731
1993
5109.2030465653
1006.58116500607
1994
4092.02696525003
740.623172624986
1995
4452.40358201023
706.131527437969
1996
4118.48940416988
495.324178219255
1997
3609.87466824543
805.165533219498
1998
3865.01400001255
1452.7246161962
1999
3209.32800000002
1147.81781305939
2000
3068.8426932481
1454.54334221981
2001
3729.5807659581
2537.45542854907
2002
3679.09800000069
2620.2191113242
2003
3885.62400000003
1977.28249154379
2004
3571.35510900003
1931.50316912797
2005
3991.21201871073
2698.13405677229
2006
3446.59300000003
4543.63691436567
2007
3176.48174303008
2410.9287491352
2008
3030.31470537383
2123.21048011574
2009
2986.98080000002
1833.32661399957
2010
3397.72800000003
1274.92241457393
2011
3559.04520000003
1262.89305436774
2012
2519.96351274348
1012.19524157757
2013
2379.71718
1520.56622097696
2014
2806.858470158
1326.20778556208
2015
3568.7094601557
1822.25467671289
2016
3527.716
4167.746
4807.776
4090.85157
2531.39110129602
7.24737716469928
2017
2719.94911448062
3372.53911448062
4025.12911448062
3411.75958
2386.87854815451
8.41863221623954
2018
3171.7888675331
3787.7688675331
4403.7488675331
2124.7288
1627.12124912734
5.0188650981568
2019
3440.69156033837
4113.42156033837
4786.15156033837
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
CustomName1
CustomName2
CustomName3
CustomName4
CustomName5
CustomName6
CustomName7
CustomName8
Removals
Landings in number
Total discards in number
Removals* in number
Mean weight in landings
Mean weight in discards
Discard proportion (by number)
Dead discard proportion (by number)
Custom fish data
Year
Custom1
Custom2
Custom3
Custom4
Custom5
Custom6
Custom7
Custom8
1987
6633.71569915177
288.973812
268.24427506183
476.744804543281
0.0186767242809026
0.00658584945031567
48.1399081060456
39.3860595341285
1988
8760.451230644
324.497976
686.968925394722
805.376223776305
0.0181039361908269
0.00600102124068196
67.9180825835678
59.7085229958154
1989
6679.18955909638
244.874645
404.227667222386
527.83401205567
0.0197450364986782
0.00651729884456409
62.274877105028
53.6076419088027
1990
5410.66229940673
213.779088
78.5463703707947
268.761547259556
0.0232559241869798
0.00798494723643615
26.8694936146013
20.4577104947446
1991
5602.82219703564
217.338206
151.63377
323.481845
0.021873668696307
0.00799707162802207
41.0962836917458
32.8128581682845
1992
6628.11507309961
274.286221
174.361984659035
396.339610261324
0.0207101186155773
0.00776393762849357
38.8638542313813
30.7951529701634
1993
5813.80986206955
240.638225
124.368060931822
327.695867652275
0.0212318846956476
0.00809356644675737
34.0728545576479
26.5665976431091
1994
4610.46318608752
188.879173
88.2668453470856
250.66596474296
0.0216647865418705
0.00839072892786283
31.8484984462393
24.6490550906334
1995
4946.69565121681
202.294008
84.7804606453344
261.640330451734
0.0220095672928198
0.00832894185833642
29.5325672970508
22.6824061677609
1996
4465.21632892336
182.041219
55.2495185825521
220.715882007786
0.0226239388353573
0.00896522161508352
23.2834703728506
17.5223743103462
1997
4173.49054149908
188.694055257793
104.99385540386
262.189754040495
0.0191308341076969
0.00766869194508974
35.7501455089922
28.03149156292
1998
4881.92123134989
161.548706992518
150.994839331547
267.2450945246
0.0239247597332461
0.00962102163641752
48.3116164475161
39.5503564696314
1999
4012.80046914159
135.304060760503
122.720476167869
221.208394078012
0.0237193768018592
0.00935310755712263
47.5615527223817
38.8341200502605
2000
4087.02303280196
133.382991189139
163.330461229577
247.714314049843
0.0230077513323752
0.00890552399882899
55.0465305493087
46.154507986042
2001
5505.79956594245
172.818863764692
305.547297081107
386.701971721466
0.0215808661433874
0.00830462403951657
63.8731001667988
55.3095467821484
2002
5513.25137792762
180.441772394941
329.001632220122
410.742914949026
0.020389391830779
0.00796415231633596
64.5806048796954
56.0694132929027
2003
5269.72174408069
163.771273978096
201.840642695786
305.059723865146
0.0237259191164363
0.00979625542772347
55.2062538147036
46.3150127119068
2004
4923.40732738961
154.4054841191
222.101588
309.8765957191
0.0231297167284893
0.00869648518284333
58.9900175712352
50.171943847264
2005
5879.90585845133
179.757643916301
315.34551196089
400.499502288924
0.0222032951242347
0.00855612004748276
63.6928907072268
55.1166373768369
2006
6627.138840056
128.777076836915
487.287829351142
469.878557382714
0.0267640257463278
0.00932433900599539
79.0968328915647
72.5935404343156
2007
4864.13186742472
117.272629607806
214.787537114331
267.623905587838
0.0270863009864549
0.0112247143457484
64.6833190606876
56.1800619603784
2008
4516.56204145485
115.274171058807
198.03061729619
253.89560316614
0.0262878897982092
0.0107216273377571
63.2070190615175
54.5978072793266
2009
4270.30942979973
123.503630944251
174.480182237099
245.63975851022
0.0241853682937332
0.0105073630167826
58.5535772478057
49.7216445361745
2010
4290.17369020178
138.119665269035
113.529744963928
217.590486743785
0.0245998858553689
0.0112298535945713
45.114250360781
36.5231139761763
2011
4443.07033805745
108.011428021159
121.602776518947
193.133371584423
0.032950635550368
0.010385396538795
52.9596053356128
44.0741767540959
2012
3228.50018184778
101.423697346535
117.934583997878
183.97790614505
0.0248459046423195
0.0085826837833742
53.7634518628955
44.8718058207644
2013
3444.11353468387
114.853460936629
154.913816981624
223.293132823766
0.0207195948697882
0.00981556229524272
57.4249842964894
48.5638185625362
2014
3735.20392005146
121.593864878305
117.929567493309
204.144562123621
0.0230838823403401
0.0112457614638274
49.2350858225614
40.4373726082045
2015
4844.28773385472
138.919745389816
156.399647882781
248.399498907763
0.0256890008698311
0.0116512709675576
52.9594911291231
44.0740637559014
2016
5862.82534090722
161.371029862325
200.973202891919
302.052271886668
0.0253505946729729
0.012595664819341
55.4647168975991
46.5751312332879
2017
5082.57456370815
143.501837773663
200.599752318975
283.921664396945
0.0237750236020055
0.0118987113421711
58.2966653147317
49.4572426945779
2018
3263.71367438914
83.4632729297593
152.342481088155
190.103009691468
0.0254570510527202
0.010680679725741
64.6050736643947
56.0957645724715
2019
Sensivity data