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European squid - Dakhla stock (26°N - 21°N)
Marine Resource  Fact Sheet
CECAF Scientific advice 2016
European squid - Dakhla stock (26°N - 21°N)
Fact Sheet Citation  
Calmar (Loligo vulgaris) - Stock Dakhla (26°N - 21°N)
Owned byFood and Agriculture Organization (FAO) – More
Monitoring periodPreviously monitored as: European squid - Morocco, Mauritania, Senegal and Gambia
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Related observationsLocate in inventorydisplay tree map
 
Species:
FAO Names: en - European squid, fr - Encornet, es - Calamar, ar - ذو الأذرع العشر أُوروبي, zh - 真枪乌贼

Fishery Indicators
Production: Catch
Geographic extent of European squid - Dakhla stock (26°N - 21°N)
Main Descriptors
Considered a single stock: Yes        Spatial Scale: Local
Management unit: Yes        Reference year: 2012
 
 
Biological State and Trend
State & Trend Descriptors
FAO Categories
Exploitation stateUncertain/Not assessed
Habitat and Biology
Climatic zone: Temperate; Tropical.   Depth zone: Coastal (0 m - 50 m); Shelf (50 m - 200 m); Slope (200 m - 1000 m).   Horizontal distribution: Neritic.   Vertical distribution: Demersal.  

Water Area Overview
Spatial Scale: Local

Geo References
Resource Structure
Considered a single stock: Yes
Exploitation
 
Fishery Indicators
TypeMeasureValueUnitTime period
ProductionCatch 7124tonnes1990
Catch 10065tonnes1991
Catch 9855tonnes1992
Catch 17576tonnes1993
Catch 11324tonnes1994
Catch 14956tonnes1995
Catch 12404tonnes1996
Catch 6285tonnes1997
Catch 11742tonnes1998
Catch 8876tonnes1999
Catch 13732tonnes2000
Catch 7413tonnes2001
Catch 2301tonnes2002
Catch 991tonnes2003
Catch 543tonnes2004
Catch 5867tonnes2005
Catch 2544tonnes2006
Catch 846tonnes2007
Catch 3652tonnes2008
Catch 4069tonnes2009
Catch 3967tonnes2010
Catch 5475tonnes2011
Catch 5243tonnes2012
Assessment
 

Assessment year: 2013
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”.
Assessment Model
Type:  Biomass-aggregated
Schaefer dynamic production model

The data series of total catches of squid in the zone between 20°50’ N and 26 °N was used in the model. Two abundance indices series were used: the CPUE series of Moroccan cephalopod freezer trawlers and the abundance indices of trawl surveys.
Overall Assessment Results

The model does not give a good fit to the data used and the results were considered unreliable.
Scientific Advice

Considering that this species is caught by the same fleets targeting octopus and cuttlefish, the same recommendations made for octopus and cuttlefish are also valid for the loligo fishery.
Management
Management unit: Yes
Source of information
 
FAO. 2016a. Fishery Committee for the Eastern Central Atlantic, Report of the seventh session of the Scientific Sub-Committee, Tenerife, Spain, 14–16 October 2015 / Comité des pêches pour l’Atlantique Centre-Est Rapport de la septième session du Sous-Comité scientifique. Tenerife, Espagne 14-16 octobre 2015. FAO Fisheries and Aquaculture Report / FAO Rapport sur les pêches et l’aquaculture No. 1128. Rome, Italy.  Click to openhttp://www.fao.org/3/I5301Bi/i5301bi.pdf
FAO. 2016b. Report of the FAO/CECAF Working Group on the Assessment of Demersal Resources – Subgroup North. Fuengirola, Spain, 18–27 November 2013. / Rapport du Groupe de travail FAO/COPACE sur l’évaluation des ressources démersales – Sousgroupe Nord. Fuengirola, Espagne, 18-27 novembre 2013. CECAF/ECAF Series/COPACE/PACE Séries. No. 15/77. Rome, Italy/Italie.  Click to openhttp://www.fao.org/3/a-i5114b.pdf
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