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Megrim (Lepidorhombus whiffiagonis) in Divisions VIIIc and IXa
Species:
Lepidorhombus whiffiagonis
Stock code:
mgw-8c9a
Assessment Year:
2016
Key:
7590
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
980
F
MSY
0.19
Precautionary approach
B
lim
700
B
pa
980
F
lim
0.45
F
pa
0.32
Age and Length
Recruitment
1
F
2-4
Fish data
Year
Recruitment
TBiomass
SSB
Landings
Catches
Discards
F
1986
10204
2629
2278
659
705
46
0.3851
1987
13248
2378
1920
497
536.9
39.9
0.3513
1988
11931
2594
2181
817
858.5
41.5
0.4988
1989
10749
2738
2356
714
761.4
47.4
0.4302
1990
13340
2839
2416
977
1021.7
44.7
0.4457
1991
6053
1839
1641
614
654.7
40.7
0.4614
1992
11908
1844
1573
516
558.1
42.1
0.4396
1993
5330
1593
1422
383
421.1
38.1
0.3238
1994
2267
1307
1226
479.23
492.13
12.9
0.4116
1995
9956
1344
1001
218.23922
257.73922
39.5
0.2915
1996
10042
1676
1345
328.70596
372.70596
44
0.2524
1997
7825
1616
1398
356.002142973565
408.102142973565
52.1
0.2686
1998
4600
1526
1393
445.963
482.063
36.1
0.3899
1999
2767
1248
1168
342.836354243445
386.136354243445
43.3
0.3295
2000
4055
1399
1289
253.133203
287.933203
34.8
0.3099
2001
3619
1083
968
174.516584
193.316584
18.8
0.2555
2002
3015
999
905
117.414025
136.614025
19.2
0.1609
2003
3113
1136
1021
133.53641
148.43641
14.9
0.1707
2004
3366
956
831
148.538203
159.438203
10.9
0.1807
2005
2819
1000
885
146.742356
165.942356
19.2
0.233
2006
2359
953
848
210.2865955
225.9865955
15.7
0.3964
2007
2893
893
760
154.9965856
155.3965856
0.4
0.252
2008
1744
746
689
133.2060878
143.7060878
10.5
0.2167
2009
1531
732
690
83.740012115
94.340012115
10.6
0.1172
2010
7224
931
745
83.382694714
87.882694714
4.5
0.0733
2011
5601
1288
1141
301.6021730324
371.0021730324
69.4
0.2832
2012
3258
1298
1215
262.070018646
292.870018646
30.8
0.2552
2013
4984
1226
1083
231.432890425
249.532890425
18.1
0.211
2014
3482
1381
1264
376.6258816
399.3958816
22.77
0.3542
2015
3301.41053574913
1482
1223
276.12308433
297.09408433
20.971
0.2617
2016
3301.41053574913
1085
Custom reference points
Custom fish data column names
Custom fish data
Sensivity data
Age
M
Mat
WeSt
F
WeCa
Fd
WeCad
1
0.2
0.34
0.0328
0.0062
0.0628
0.2294
0.0308
2
0.2
0.9
0.091
0.1185
0.1002
0.0349
0.0626
3
0.2
1
0.1326
0.2664
0.1338
0.0081
0.0892
4
0.2
1
0.1634
0.3959
0.1636
0.003
0.1124
5
0.2
1
0.2044
0.5241
0.2046
0.000722315842636394
0.116
6
0.2
1
0.2584
0.522
0.2586
0.000584699159164536
0.0922
7
0.2
1
0.3748
0.5227
0.3748
0
0.0382