Herring (Clupea harengus) in divisions 7.a South of 52°30’N, 7.g-h, and 7.j-k (Irish Sea, Celtic Sea, and southwest of Ireland)

StockCode (Assessment Component)

her.27.irls

Assessment Year

2026

Stock Category

Purpose

Advice

Published

Stock Assessment Key

21307

Link to Advice Sheet

Status: Invalid

Advice Component

Advice Category*

Advice Type*

Advice Unit*

AdviceValue*

Advice Value Lower Range

Advice Value Upper Range

Wanted Catch

Wanted Catch Lower Range

Wanted Catch Upper Range

Advice Sentence*

Advice Released Date*

Advice Applicable From*

Advice Applicable Until*

TAF Link

Management Alignment

MP WebLink

Management Plan Ownership

Link To Evaluation

Inquiries or Comments?

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Catch scenarios

Basis	Total catch	F2–5	Spawning-stock biomass (SSB)*	Spawning-stock biomass (SSB)*	% SSB change	% SSB change
	2028	2028	2028	2029	2028	2029
	(t)	(ratio)	(t)	(t)	(%)	(%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach: zero catch	0	0	18801	18438	-4.3	-1.9
Other scenarios
FMSY	3453	0.26	13910	11961	-20.3	-14
FMSY×SSB2027/MSYBtrigger	1530	0.093	16837	15666	-10.3	-7
F=0	0	0	18801	18438	-4.3	-1.9
FPA	3453	0.26	13910	11961	-20.3	-14
SSB2028=Blim**
SSB2028=BPA**
SSB2028=MSYBtrigger**
F=F2027	772	0.044	17838	17052	-7.2	-4.4
TAC=monitoring TAC	869	0.05	17793	16915	-7.6	-4.9

Symbol	Footnotes
*	For this autumn- and winter-spawning stock, the SSB is determined at spawning time (October) and is influenced by fisheries between 01 April and spawning.
**	Blim, BPA, and MSYBtrigger cannot be achieved in 2028, even with zero catch.