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Stock Assessment Graphs
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Thornback ray (Raja clavata) in divisions 7.a and 7.f-g (Irish Sea, Bristol Channel, Celtic Sea North)
Species:
Stock Assessment Graphs
Stock code:
rjc.27.7afg
Assessment Year:
2022
Key:
17523
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F
Fishing pressure units
Stock size description
B_index
Stock size units
Kilograms per hour
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
F
MSY
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
1993
0.523207005
1.25908201574228
2.226097799
1994
0.698069026
1.37906810506424
2.157471452
1995
1.113964879
2.17072385677604
3.310894534
1996
0.96200495
1.73684622093601
2.729211358
1997
0.812168006
1.71540462507582
2.901939014
1998
1.260556836
2.22971945472269
3.321314065
1999
1.049408877
1.87297744371327
2.872069742
2000
0.548377872
1.16684895369459
1.906960521
2001
0.948295218
1.8853662672755
2.939186809
2002
1.101814312
1.82173610649927
2.669355239
2003
1.113110173
2.04964926845302
3.043905446
2004
1.784020697
4.3672541591587
8.203029036
2005
1.005088267
1.68776866892659
2.543208983
2006
0.904252552
1.81183515784929
2.886878209
2007
0.775855057
1.46842187492561
2.236111181
2008
1.20856291
2.05620693566884
3.160729528
2009
1.684092351
2.61617852446488
3.620236396
671.023485
2010
1.684574731
2.60767449480164
3.560831016
780.40944
2011
1.109940801
1.79463479526015
2.614237958
944.411055
2012
1.271587898
1.92907724870413
2.691027065
1164.673202
2013
2.100518679
3.25587642884715
4.498588418
1047.538024
2014
2.360788021
3.4214251798115
4.748925074
789.656892
2015
1.315911182
2.1751071033286
3.204408015
902.772895
2016
3.04555496
4.6353006356779
6.390152543
862.44245
2017
3.777486092
5.47032485227776
7.431976058
878
2018
4.603280278
6.79072156329109
9.218335152
840
2019
4.880343437
6.95880770256075
9.565289979
959.579692
2020
908.729
2021
5.533825252
7.41698460853973
9.63484487
971.469
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
Itrigger
1.62
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data