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Cuttlefish - Dakhla stock (26°N - 21°N)
Fact Sheet Title  Fact Sheet
CECAF Scientific advice 2022
Cuttlefish - Dakhla stock (26°N - 21°N)
Fact Sheet Citation  
Seiches (Sepia spp) - Stock Dakhla (26°N - 21°N)
Owned byFood and Agriculture Organization (FAO) – ownership
Monitoring Monitoring Evolution: Cuttlefish - Morocco, Mauritania Senegal and Gambia
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ident Blockident Blockdisplay tree map
 
Species List:
Species Ref: en - Cuttlefishes nei, fr - Seiches nca, es - Sepias nep

Fishery Indicators
Production: Catch
ident Block Cuttlefish - Dakhla stock (26°N - 21°N)
Aq Res
Biological Stock: Yes         Value: Local
Management unit: No        Reference year: 2021
 
 
Aq Res State Trend
Aq Res State Trend
Aq Res State Trend Aq Res State Trend
Aq Res State TrendFcur/F0.1 = 74%; Fcur/FMSY = 67%Not applicable
Aq Res State TrendBcur/B0.1 = 141%; Bcur/BMSY = 155%Not applicable
Aq Res State Trend
Aq Res State TrendFully exploited

Fcur/F0.1: Ratio between the observed fishing mortality coefficient during the last year of the series and F0.1.
Fcur/FMSY: Ratio between the observed fishing mortality coefficient during the last year of the series and the coefficient that would give a maximum sustainable yield over the long term.
Bcur/B0.1: Ratio between the estimated biomass for the last year and the biomass corresponding to F0.1.
Bcur/BMSY: Ratio between the estimated biomass for the last year and the biomass corresponding to FMSY.

Habitat Bio
Climatic Zone: Temperate; Tropical.   Depth Zone: Coastal (0 m - 50 m); Shelf - Uppershelf (up to 100 m); Shelf - Deepshelf (100 m - 200 m).   Horizontal Dist: Neritic.   Vertical Dist: Demersal/Benthic.  

Water Area Overview
Spatial Scale: Local

Water Area Overview
Aq Res Struct
Biological Stock: Yes

Exploit
 
Fishery Indicators
TypeMeasureValueUnitTime period
ProductionCatch 27914tonnes2021
Bio Assess
 

Assessment year: 2021
The CECAF Working Groups have adopted the following Biological Reference Points (BRPs):
- Limit Reference points: BMSY and FMSY
- Target Reference Points: B0.1 and F0.1
Stock status is assigned based on current estimates of fishing mortality (Fcur) and biomass (Bcur) relative to these target and limit reference points (Bcur/BMSY, Fcur/FMSY, Bcur/B0.1, Fcur/F0.1). The results from the stock assessment of this stock are found under the “Biological state and trend section”.
Sci Advice

As a precautionary measure, reduce catches by 10% compared to the last year.
Management
Management unit: No
Sources
 
FAO. 2022. Meeting summary of the FAO/CECAF Working Group on the Assessment of Demersal resources – Subgroup North. Nouakchott, Mauritania, 5-9 December 2022. CECAF/SSCIX/2022/4c.  Click to openhttps://www.fao.org/3/cc3290b/cc3290b.pdf
Bibliography
 
All references to figures, tables and bibliography in the text are found within the source of information.
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