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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:
2018
Key:
9997
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
Fishing pressure units
Stock size description
Biomass index
Stock size units
kg/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
SSB
Landings
1993
1.25908201574228
1994
1.37906810506424
1995
2.17072385677604
1996
1.73684622093601
1997
1.73346151586609
1998
2.22971945472269
1999
1.87297744371327
2000
1.17953209449562
2001
1.90500549922629
2002
1.82173610649927
2003
2.04964926845302
2004
4.3672541591587
2005
1.68776866892659
2006
1.81183515784929
2007
1.46842187492561
2008
2.05620693566884
2009
2.61617852446488
671.023485
2010
2.56167343738831
780.40944
2011
1.79463479526015
944.411055
2012
1.92907724870413
1164.673202
2013
3.25587642884715
1047.538024
2014
3.4214251798115
789.656892
2015
2.1751071033286
902.772895
2016
4.6353006356779
861.04445
2017
5.47032485227776
876.441747
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data