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European anchovy - Gabon, Congo, Democratic Republic of the Congo and Angola
Marine Resource  Fact Sheet
CECAF Scientific advice 2016
European anchovy - Gabon, Congo, Democratic Republic of the Congo and Angola
Fact Sheet Citation  
Anchois (Engraulis encrasicolus) - stock sud (Gabon, Congo, République démocratique du Congo et Angola)
Owned byFood and Agriculture Organization (FAO) – More
Monitoring periodPreviously monitored as: European anchovy - Southern Area of Eastern Central Atlantic
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Related observationsLocate in inventorydisplay tree map
 
Species:
FAO Names: en - European anchovy, fr - Anchois, es - Boquerón, ru - Анчоус европейский

Fishery Indicators
Production: Catch
Geographic extent of European anchovy - Gabon, Congo, Democratic Republic of the Congo and Angola
Main Descriptors
Considered a single stock: Yes        Spatial Scale: Regional
Management unit: Yes        Reference year: 2012
 
 
Biological State and Trend
State & Trend Descriptors
PartnerFIRMS
Exploitation rateFcur/F0.1 = 44% ; Fcur/FMSY = 40%Not applicable
Abundance levelBcur/B0.1 = 127%Not applicable
FAO Categories
Exploitation stateNot fully 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.
Unless otherwise indicated, the indicators were based on the Schaefer dynamic production stock assessment model.
Habitat and Biology
Climatic zone: Tropical.   Depth zone: Coastal (0 m - 50 m); Shelf (50 m - 200 m); Slope - Upperslope (200 m - 500 m).   Horizontal distribution: Neritic; Oceanic.   Vertical distribution: Pelagic.  

Geographical Distribution
Jurisdictional distribution: Shared between nations

Water Area Overview
Spatial Scale: Regional

Geo References
Resource Structure
Considered a single stock: Yes
Exploitation
 
Fishery Indicators
TypeMeasureValueUnitTime period
ProductionCatch 423tonnes1995
Catch 529tonnes1996
Catch 479tonnes1997
Catch 642tonnes1998
Catch 383tonnes1999
Catch 401tonnes2000
Catch 356tonnes2001
Catch 1082tonnes2002
Catch 398tonnes2003
Catch 399tonnes2004
Catch 394tonnes2005
Catch 614tonnes2006
Catch 554tonnes2007
Catch 981tonnes2008
Catch 100tonnes2009
Catch 462tonnes2010
Catch 924tonnes2011
Catch 993tonnes2012
Assessment
 

Assessment year: 2014
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 logistic production model

Only the Congo has a series of anchovy catch data for the southern stock (Angola, the Congo, the Democratic Republic of the Congo, and Gabon) from 1998 to 2012. The other countries have sporadic data. For the model fit, the Working Group used the total catch and the abundance index, and CPUE from the artisanal fishery in the Congo. Initial parameters for the assessment model were: - Engraulis encrasicolus: r = 1.94, K = 1 500 tonnes and BI/K = 65 percent.
Overall Assessment Results

Even if the results show that the stock is not fully exploited in its current state, the Working Group notes that only the Congo has data for this species and that there is a lack of data from the other three countries, although anchovy appears to be present in the whole subregion. This situation can affect the results of the assessment. The model results should therefore be considered with caution.
Scientific Advice

As a precautionary measure, catch level should not exceed the average catches of the 3 last years (790 tonnes). Can sustain an increase in exploitation.
Management
Management unit: Yes
Source of information
 
FAO. 2016. 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/a-i5301b.pdf
FAO. 2015. Report of the FAO/CECAF Working Group on the Assessment of Small Pelagic Fish – Subgroup South. Pointe Noire, Congo, 17–23 March 2014. Rapport du Groupe de travail FAO/COPACE sur l’évaluation des petits poissons pélagiques – Sous-groupe Sud. Pointe Noire, Congo, 17-23 mars 2014. CECAF/ECAF Series / COPACE/PACE Séries No. 15/75 Rome, FAO. 157 pp.  Click to openhttp://www.fao.org/3/a-i5040b.pdf
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