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Stock Assessment Graphs
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Norway lobster (Nephrops norvegicus) in Division 6.a, Functional Unit 13 (West of Scotland, the Firth of Clyde and Sound of Jura)
Species:
Stock Assessment Graphs
Stock code:
nep.fu.13
Assessment Year:
2019
Key:
13200
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
Relative F
Fishing pressure units
ratio
Stock size description
UW TV index
Stock size units
millions
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
580
F
MSY
15.1
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
Catches
Discards
F
1981
2968
2968
1982
2620
2620
1983
4076
4076
1984
3310
3310
1985
4286
4286
1986
4341
4341
1987
3009
3009
1988
3664
3664
1989
2812
2812
1990
2909
3102
193
1991
3038
3285
247
1992
2803
2903
100
1993
3343
3638
295
1994
2630
3027
397
1995
403
579
755
3987
4606
619
36.40054127
1996
693
935
1177
4057
4692
635
21.06690778
1997
936
1198
1460
3621
4219
598
1998
1049
1262
1475
4841
6133
1292
1999
641
930
1219
3752
4318
566
2000
1165
1411
1657
3417
3887
470
2001
1218
1486
1754
3182
3859
677
12.79863481
2002
1283
1571
1859
3384
3790
406
12.4428644
2003
1525
1817
2109
3173
4420
1247
12.80693308
2004
1603
1970
2337
2973
4408
1435
2005
1672
1959
2246
3395
4006
611
10.65428824
2006
1594
1851
2108
4780
5295
515
12.71372205
2007
1015
1233
1451
6660
9226
2566
43.01075269
2008
1478
1769
2060
5923
7356
1433
2009
1289
1499
1709
4779
6169
1390
22.17142857
2010
1423
1750
2077
5843
6379
536
14.91063029
2011
1860
2165
2470
6432
7000
568
15.66410981
2012
1194
1421
1648
6687
7753
1066
20.98214286
2013
1744
1990
2236
5435
5889
454
14.12248629
2014
1091
1328
1565
6207
6903
696
22.64271969
2015
1469
1820
2171
5147
5548
401
12.43169399
2016
1697
1946
2195
6447
7083
636
17.56756757
2017
1329
1568
1807
5221.8
5486.8
265
17.55602988
2018
1896
2193
2490
4141
4209
68
11.06158833
2019
1702
2083
2464
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data