GREATER SILVER SMELT Argentina silus

Advice 2024/2025

12 273

tonnes

Advice 2023/2024

10 920

tonnes

Advice change

12 %

Publication of Advice: 7 June 2024. Published by Marine and Freshwater Research Institute.


Advice

MFRI and ICES advise that when the MSY approach is applied, catches in the 2024/2025 fishing year in the Icelandic and East Greenland area should be no more than 12 273 tonnes.

Stock development

Fishing pressure on the stock is below FMSY and spawning-stock size is above MSY Btrigger, Bpa, and Blim.

0 2 4 6 8 10 12 14 16 18 1990 1995 2000 2005 2010 2015 2020 Thous. tonnes E a s t G r e e n l a n d I c e l a n d Catches 0 25 50 75 100 2001 2006 2011 2016 2021 Millions R e c r u i t m e n t ( a g e 5 ) F M S Y F p a F l i m 0.00 0.05 0.10 0.15 0.20 0.25 0.30 2000 2005 2010 2015 2020 F ( a g e s 6 − 14 ) Fishing mortality B p a B t r i g g e r B l i m 0 20 40 60 80 100 120 140 160 180 2001 2006 2011 2016 2021 Thous. tonnes SSB

Greater silver smelt. Catch by area, recruitment (age 5), fishing mortality (ages 6–14), and spawning stock biomass. Shaded area and error bars represent 90% CI.

Basis of the assessment and reference points

Prospects

Greater silver smelt. Assumptions made for the interim year and in the forecast.

Greater silver smelt. Projection of reference biomass and SSB (tonnes) based on the MSY approach.

Quality of the assessment

The advice is based on the results of an age and length-based assessment model (Gadget). The survey index fluctuates greatly between years; this is partly caused by shoaling behaviour and vertical migrations. This increases uncertainty in the assessment, but the assessment is not considered to be biased (ICES,2021).

The Icelandic autumn survey (IS–SMH) covers the depth range and geographical distribution of the stock and the fisheries in Division 5.a. For Subarea 14, where some catches have been reported in recent years, the Greenlandic deepsea survey has shown that the distribution of the species extends along the shelf edge south to 62°00ˈN. Proportion of the stock in this area is unknown.

F M S Y F p a F l i m B l i m B p a B t r i g g e r F i s h i n g m o r t a l i t y R e c r u i t m e n t S S B 2012 2016 2020 2024 2012 2016 2020 2024 2012 2016 2020 2024 0 25 50 75 100 0.00 0.02 0.04 0.06 0.08 0.00 0.05 0.10 0.15 0.20 0.25

Greater silver smelt. Current assessment (red line) compared with previous estimates 2020–2023

Other information

Catches since the 2013/2014 fishing year have been far below the TAC.

Advice, TAC and catch

Greater silver smelt. Recommended TAC, national TAC, and catches (tonnes).

References and further reading

ICES. 2021. Benchmark Workshop of Greater silver smelt (WKGSS; Outputs from 2020 meeting). ICES Scientific Reports, 3:5. 485 pp. https://doi.org/10.17895/ices.pub.5986.

MFRI Assessment Reports 2024. Greater silver smelt. Marine and Freshwater Research Institute, 7 June 2024.