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Stock Assessment Graphs
Stock assessment graphs
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Herring (Clupea harengus) in Division 5.a, summer-spawning herring (Iceland grounds)
Species:
Stock Assessment Graphs
Stock code:
her.27.5a
Assessment Year:
2017
Key:
8889
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
Harvest rate
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
273000
F
MSY
0.22
Precautionary approach
B
lim
200000
B
pa
273000
F
lim
0.61
F
pa
0.45
Age and Length
Recruitment
3
F
5-10
Fish data
Year
Recruitment
SSB
Landings
Catches
F
1987
529829
383814
75450.782
75450.782
0.181651973353172
1988
270997
423302
92813.816
92813.816
0.205209547898684
1989
447334
385514
100713.041
100713.041
0.251101489709164
1990
300829
349856
104226.989
104226.989
0.280573031046169
1991
840577
309715
106827.024
106827.024
0.344406658133904
1992
1033139
343185
107408.317
107408.317
0.307340159724388
1993
635480
423592
102628.948
102628.948
0.226246812825855
1994
691770
440734
133652.824
133652.824
0.290130819860028
1995
202736
406181
125480.745
125480.745
0.288187869907421
1996
181415
307477
95858.27
95858.27
0.297402782345386
1997
772665
268888
64805.906
64805.906
0.242992684636988
1998
320563
298380
86076.43
86076.43
0.266116449325097
1999
552810
289701
92569.079
92569.079
0.311718184695788
2000
391662
306464
99902.059
99902.059
0.308088653072805
2001
469298
272096
93635
93635
0.331298871315855
2002
1458959
297670
95968.594
95968.594
0.345061822235007
2003
1077261
390306
128817.579
128817.579
0.312698180626525
2004
668463
487859
112381.969
112381.969
0.217086877658485
2005
996796
528126
102447.402
102447.402
0.189853824599898
2006
739557
615780
129765.53
129765.53
0.199582779643916
2007
658116
572472
158029.641
158029.641
0.263590532202887
2008
555459
569515
150675.011
150675.011
0.252383571074425
2009
455348
497454
45727.942
45727.942
0.0825834486146378
2010
420784
458978
43415.907
43415.907
0.0838193466803097
2011
498742
429948
49388.895
49388.895
0.103654310701251
2012
421675
429087
73319
73319
0.163140656220657
2013
406124
379408
71454.049
71454.049
0.179941497773838
2014
212966
391405
95003.994
95003.994
0.228695489110942
2015
173166
323671
69746.26
69746.26
0.204950397874866
2016
151331
284332.389346471
60403
60403
0.202505824770623
2017
391300
240578.304646641
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
MGT Btrigger
200000
Custom fish data column names
CustomName1
CustomName2
Biomass 4+
F
Custom fish data
Year
Custom1
Custom2
1987
415359
0.347355070097676
1988
452288
0.265668620256467
1989
401085
0.322395671165962
1990
371479
0.399666280683084
1991
310177
0.435852370348174
1992
349477
0.415053778883307
1993
453615
0.248098958344729
1994
460664
0.312361962334302
1995
435413
0.34344896229958
1996
322318
0.360683697884943
1997
266699
0.250051359654234
1998
323454
0.279725489385607
1999
296964
0.376953811984863
2000
324264
0.334777404143342
2001
282630
0.414135452495696
2002
278120
0.417436900974915
2003
411955
0.278947050099427
2004
517682
0.243445756399471
2005
539612
0.251773620508461
2006
650184
0.142656416311461
2007
599527
0.318965544966823
2008
597008
0.307066823673527
2009
553718
0.087641337213575
2010
517970
0.0982874338379776
2011
476477
0.122435796923979
2012
449422
0.204876059505563
2013
397096
0.182794228729073
2014
415417
0.301020627110167
2015
340308
0.26447495943105
2016
298277.84
0.2514379543212
2017
258076.673666667
Sensivity data