Spurdog (Squalus acanthias) in subareas 1-10, 12 and 14 (the Northeast Atlantic and adjacent waters)

StockCode (Assessment Component)

dgs.27.nea

Assessment Year

2018

Stock Category

1.2

Purpose

Advice

Published

Stock Assessment Key

10262

Link to Advice Sheet

Status: valid

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	Catch	Catch	Harvest rate	Harvest rate	Btot	Btot	% Btot change rel. to 2019	% Btot change rel. to 2019	% advice change	% advice change
	2019	2020	2019	2020	2020	2021	2020	2021	2020	2021
	(t)	(t)	(ratio)	(ratio)	(t)	(t)	(%)	(%)	(%)	(%)
ICES Basis Advice
Average catch 2007–2009 = 2468	2468	2468	0.0088	0.0086	399460	408819	0.023	0.047	0	0
Zero catch	0	0	0	0	401948	413786	0.03	0.06	-1	-1
Other scenarios
Harvest rate = HRMSY × Btot(2019 or 2020) /MSY Btrigger	5210	5364	0.0185	0.0188	396696	403145	0.0162	0.033	1.11	1.17
TAC 2009=1422	1422	1422	0.0051	0.0049	400515	410924	0.026	0.053	-0.42	-0.42
Harvest rate = HRMSY (0.032)	9120	9119	0.032	0.032	392753	395429	0.0061	0.013	2.7	2.69

Symbol	Footnotes
*	Total biomass for 2020 or 2021 relative to the total biomass for 2019.
**	Catch for 2019 or 2020 relative to advice value for 2017 and 2018 (2 468 t).