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Mackerel icefish - South Georgia
Marine Resource  Fact Sheet
Resource report 2021
Mackerel icefish - South Georgia
Fact Sheet Citation  
Champsocephalus gunnari - Subarea 48.3
Owned byCommission for the Conservation of Antarctic Marine Living Resources (CCAMLR) – More
Related observationsLocate in inventorydisplay tree map
 
Species:
FAO Names: en - Mackerel icefish, fr - Poisson des glaces antarctique, es - Draco rayado, ru - Ледяная рыба (=белокровка Гуннара)

Fishery Indicators
Production: Catch
Geographic extent of Mackerel icefish - South Georgia
Main Descriptors
Considered a single stock: Yes        Spatial Scale: Regional
Management unit: Yes        Reference year: 2018
 
 
Biological State and Trend
 

Biomass estimated at 53124 tonnes.
Habitat and Biology
Climatic zone: Polar.   Depth zone: Shelf (50 m - 200 m); Slope - Upperslope (200 m - 500 m).   Horizontal distribution: Oceanic.   Vertical distribution: Pelagic.  

Water Area Overview
Spatial Scale: Regional

Geo References
Resource Structure
Considered a single stock: Yes

Exploitation
 

Total catches <5t reflect catches from research surveys only. Southern Ocean Mackerel icefish fishery - South Georgia (Subarea 48.3)
Fishery Indicators
TypeMeasureValueUnitTime period
ProductionCatch 1tonnes2018
Catch 110tonnes2017
Catch 2tonnes2016
Catch 270tonnes2015
Catch 33tonnes2014
Catch 1326tonnes2013
Catch 984tonnes2012
Catch 2tonnes2011
Catch 1tonnes2010
Catch 1827tonnes2009
Catch 2479tonnes2008
Catch 4339tonnes2007
Catch 2177tonnes2006
Catch 201tonnes2005
Catch 2758tonnes2004
Catch 1972tonnes2003
Catch 2663tonnes2002
Catch 1433tonnes2001
Catch 4041tonnes2000
Catch 265tonnes1999
Catch 6tonnes1998
Catch -tonnes1997
Catch -tonnes1996
Catch -tonnes1995
Catch -tonnes1994
Catch -tonnes1993
Catch -tonnes1992
Catch 41tonnes1991
Catch 8030tonnes1990
Catch -tonnes1989
Catch 11473tonnes1988
Catch 80586tonnes1987
Catch 21008tonnes1986
Catch 628tonnes1985
Catch 35743tonnes1984
Catch 178824tonnes1983
Catch 54040tonnes1982
Catch 27903tonnes1981
Catch 8795tonnes1980
Assessment
 

Assessments are reviewed biennially, the last assessment was in 2019.
Assessment Model
Type:  Size-structured
Length-based

The use of a length-based model to set catch limits for C. gunnari in Subarea 48.3 was endorsed at the 2010 meeting of the Working Group on Fish Stock Assessment (WG-FSA-10) (SC-CAMLR-XXIX, Annex 8, paragraph 5.164). The assessment used survey data on length densities and biomass density without the need to identify age-specific cohorts.
Scientific Advice

A stratified bootstrap of icefish catch density based on the UK 2019 demersal fish survey catch rate data indicated a biomass of 53,124 tonnes (lower one sided 5th percentile: 32,399 tonnes) within Subarea 48.3 (WG-FSA-2019/30). Projections for the 2019/20 and 2020/21 seasons applying the CCAMLR harvest control rule lead to catch limits (TAC) of 3,225 tonnes for 2019/20 and 2,132 tonnes for 2020/21.
Management
Management unit: Yes
Source of information
 
CCAMLR. 2021. Fishery Report 2020: Champsocephalus gunnari in Subarea 48.3.  Click to openhttps://fishdocs.ccamlr.org/FishRep_483_ANI_2020.pdf
CCAMLR. 2021. Fishery Summary 2020: Champsocephalus gunnari in Subarea 48.3.  Click to openhttps://fishdocs.ccamlr.org/FishSum_483_ANI_2020.pdf
Bibliography
 
CCAMLR. 2020. Conservation Measure 42-01 (2019). Limits on the fishery for Champsocephalus gunnari in Statistical Subarea 48.3 in the 2019/20 and 2020/21 seasons.  Click to openhttps://www.ccamlr.org/en/measure-41-02-2019
CCAMLR 2020. Report of the Thirty-ninth Meeting of the Commission. CCAMLR-39. Virtual Meeting. 27 – 30 October 2020.  Click to openhttps://www.ccamlr.org/en/ccamlr-39
CCAMLR. 2010. Report of the Twenty-ninth Meeting of the Commission. SC-CAMLR-XXIX. Hobart, Australia, 25 – 29 October 2010.  Click to openhttps://www.ccamlr.org/sc-camlr-xxix
CCAMLR. 2020. Report of the Thirty-ninth Meeting of the Scientific Committee. SC-CAMLR-39. Virtual Meeting. 26 October 2020.  Click to openhttps://www.ccamlr.org/en/sc-camlr-39
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