ICES Marine Data
Stock Assessment Graphs
 
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Blonde ray (Raja brachyura) in divisions 4.b, 4.c and 7.d (central and southern North Sea and eastern English Channel)
Species: Stock Assessment Graphs
Stock code: rjh.27.4bc7d
Assessment Year: 2023
Key: 18341
   
   
Unit weights tonnes
Unit recruitment thousands
Fishing pressure description F/Fmsy
Fishing pressure units ratio
Stock size description B/Bmsy
Stock size units Kilograms per hour
       
Fish reference points      
       
Management plan SSBMP  
FMP  
MSY approach MSYBtrigger 0.5  
FMSY 1  
Precautionary approach Blim 0.3  
Bpa  
Flim 1.7  
Fpa  
       
Age and Length      
       
Recruitment 0  
F  
       
       
 
Fish data
YearLow SSBSSBHigh SSBLandingsCatchesDiscardsLow FFHigh F
19970.05582996780678530.1283561654089880.295097881043325   0.8287563575734721.52878900953472.82012417077223
19980.06186766540063810.1355016673871740.296773795258078   0.9118743665542491.530981179768112.57042357892042
19990.06726870681252330.1428457312441520.303334253050894164.374381236248235.75870432225271.3843230860041.023827138217231.538472935196432.31181503593796
20000.0721577761868810.1501462556235910.312425067249835194.033121226073278.29760885982784.2644876337541.098071243074441.583443319744672.28336072240993
20010.07695859602548980.1565989742193380.318654965046742205.641030234658294.94658765550389.3055574208451.101189392288631.625598757810272.39974280527911
20020.08169407268337640.1622647339272380.322298093504588206.492986859141296.16853105335189.675544194211.039207011597631.610292028893162.49521066484185
20030.08681770108428930.16887455318810.328488480555275205.747524812718295.09933058023489.3518057675160.9304972930933151.537982831995972.54207208239256
20040.09220756050490850.1771371896324980.340292962736275189.347359791414271.57692017166582.2295603802510.7841098028311941.392635966056952.47342263411661
20050.09940437013071880.1903851821689470.364637063157666159.102899622257228.19792954806969.0950299258120.624846520405251.192526312245352.27594930747982
20060.1094354724323590.2106563131747580.405499983634742154.949611077901222.24095548356167.291344405660.5034111882872751.022499100667072.07683983826823
20070.1223118248923590.2380431077624120.463279173563594166.025047196184238.12621965558272.1011724593980.4248183891703660.9056696869161861.93079584761082
20080.1371184561278550.2708228175207230.534902452675467159.635372512559228.96164417172469.3262716591650.3605665224326860.7988351614535051.76981936888936
20090.1560425806148520.3125612526493860.626076140709857163.04578257.68793512728194.64215512728120.309818429252570.7044817269790171.60188825708218
20100.1796753025704740.3640374710128390.737570931594474126.09529222.59267115488596.49738115488510.2573455475359070.6000766919934441.39925496952129
20110.2106677442723720.4292478255989880.874617499787901157.18749235.34906878564778.16157878564730.2174784176927730.5144944366758111.21715307743457
20120.2526011770612540.5152971698433271.05118739484002216.83769346.643005403533129.8053154035330.2274730763170230.5290353053038341.23038013460486
20130.2947732796954040.5998675854043551.22073859744236252.83273326.16628242149973.33355242149920.215096012988430.5027276469698231.17498731620567
20140.3422764947763330.6889419520469571.38671810812026206.06632285.88086091351779.81454091351670.1702481865700560.4062700353815180.969498383355644
20150.398423742624580.7863960892653681.55216354612325225.3449298.12487038791772.77997038791730.1454285507034890.3451312813811170.819066138055887
20160.4662725913107580.8937973504795551.71331902970862182.93209271.82835326036588.89626326036480.1247487297520040.2953137078632210.699086766056013
20170.5503823193158161.015396552897341.87329811196967240.83954333.81720055201492.97766055201410.1220301476155090.2825604460906810.654267877693017
20180.6397754001393661.128002604423561.98880712717176254.83533343.53302104131988.69769104131880.1220111815525430.2777421425932970.632242855045999
20190.7331826058131431.229959109113272.06333237872292253.05768360.450596737142107.3929167371420.1173139278237390.2654423373170830.600607581277307
20200.8279944742571251.318545879010992.09972806475152243.07429342.70218703730499.6278970373040.108500659648060.2474671664392330.564420517479849
20210.938469658484041.421002026731382.1516377665704298.81763421.292829144143122.4751991441430.1121332071465060.254399789465360.577164022388671
20221.035956784164671.489044555999432.14029554479861327.9669431.744001272434103.7771012724340.1157822530039780.2640879035396870.602358470201741
20231.12784640436651.542718962828452.11020027998166      
 
 
 
 
Custom reference points
 
Custom fish data column names
CustomName1
Index 1
 
Custom fish data
YearCustom1
199710.2976978769463
199819.3142981951207
199926.7524933823341
20004.81592569461831
200114.8415375724514
200214.6630253867345
200336.5647183806255
20043.62860863143787
200532.7440026831612
200646.6266087404965
200767.9220243019242
200821.6608715996514
200924.7741878501607
201012.4788165089325
201133.697916325551
2012124.356113764
201358.3240194055788
2014187.664984665847
201589.5566774699185
2016144.400533884972
2017215.144852289129
2018187.431449513677
2019206.732764682199
2020134.537918129691
2021349.595498231322
2022218.643305978157
2023 
 
 
 
 
Sensivity data