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| Marine Resource Fact Sheet |
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| Atlantic horse mackerel - Northwest Africa |
 | Chinchard blanc (Trachurus trachurus) - Afrique nord-occidentale |
| | Data Ownership | | This document provided, maintained and owned by Food and Agriculture Organization (FAO) , is part of CECAF Stock Status Reports data collection. |
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| Related observations | Locate in inventory | | | | Species: | | FAO Names: en - Atlantic horse mackerel, fr - Chinchard d'Europe, es - Jurel, ru - Ставрида обыкновенная |
Fishery IndicatorsProduction: Catch |
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| Geographic extent of Atlantic horse mackerel - Northwest Africa
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| FAO Fishing Statistical Sub Areas |
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| 34.1 | Northern coastal subarea |
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| FAO Fishing Statistical Subdivision Areas |
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| 34.3.11 | Atlantic, East central / 34.3.11 |
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| 34.3.12 | Atlantic, East central / 34.3.12 |
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| Main Descriptors | Considered a single stock: Yes
Spatial Scale: Regional
Management unit: Yes
Reference year: 2014
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| Considered a single stock: A group of individuals in a species occupying a well defined spatial range independent of other stocks of the same species. It can be affected by random dispersal movements and directed migrations due to seasonal or reproductive activity. |
| Spatial Scale: Spatial scale contains a standard term such as Global, Regional (e.g. for the whole Atlantic), sub-regional (e.g. for a part of the Atlantic), national, local (for sub-national levels). |
| Considered a management unit: An aquatic resource or fishery is
declared as [Fishery] Management Unit if it is
effectively the focus for the application of selected
management methods and measures, within the broader
framework of a management system. According to the FAO
Glossary for Responsible Fishing, "a Fishery Management
Unit (FMU) is a fishery or a portion of a fishery
identified in a Fishery Management Plan (FMP) relevant
to the FMP's management objectives." FMU's may be
organised around fisheries biological, geographic,
economic, technical, social or ecological dimensions ,
and the makeup and attribute of a fishery management
unit depends mainly on the FMP's management
objectives. |
| Jurisdictional distribution: Jurisdictional qualifier (e.g.
"shared", "shared - highly migratory") of the aquatic
resource related with its spatial distribution. |
| Environmental group: Classification of the aquatic
resource according to the environmental group (e.g.
pelagic invertebrate, or demersal fish) to which the
species belong. |
| Reference Year: The Reference Year is the last year considered in the stock assessment and/or fishery status. |
| | | | | | Biological State and Trend 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. Unless otherwise indicated, the indicators were based on the Schaefer dynamic production stock assessment model. Habitat and Biology Climatic zone: Temperate; Tropical. Depth zone: Shelf (50 m - 200 m); Slope (200 m - 1000 m); Abyssal ( >1000m). Horizontal distribution: Neritic; Oceanic. Vertical distribution: Pelagic. Geographical Distribution Jurisdictional distribution: Shared between nations Geo References  | | Geographic extent of Atlantic horse mackerel - Northwest Africa
| FAO Fishing Statistical Sub Areas | 34.1: Northern coastal subarea | | FAO Fishing Statistical Subdivision Areas | 34.3.11: Atlantic, East central / 34.3.11 | | 34.3.12: Atlantic, East central / 34.3.12 |
| | | | | | Intersecting Major FAO areas and LME areas |
The following area codes have been found as intersecting the distribution of Atlantic horse mackerel - Northwest Africa Resource Structure Considered a single stock: Yes Exploitation Fishery Indicators | Type | Measure | Value | Unit | Time period |
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| Production | Catch | 45069 | tonnes | 1990 | | Catch | 22041 | tonnes | 1991 | | Catch | 36501 | tonnes | 1992 | | Catch | 48237 | tonnes | 1993 | | Catch | 56172 | tonnes | 1994 | | Catch | 71596 | tonnes | 1995 | | Catch | 47766 | tonnes | 1996 | | Catch | 50498 | tonnes | 1997 | | Catch | 85010 | tonnes | 1998 | | Catch | 83157 | tonnes | 1999 | | Catch | 68180 | tonnes | 2000 | | Catch | 69949 | tonnes | 2001 | | Catch | 41362 | tonnes | 2002 | | Catch | 64057 | tonnes | 2003 | | Catch | 169350 | tonnes | 2004 | | Catch | 120810 | tonnes | 2005 | | Catch | 92391 | tonnes | 2006 | | Catch | 63383 | tonnes | 2007 | | Catch | 119679 | tonnes | 2008 | | Catch | 119565 | tonnes | 2009 | | Catch | 110483 | tonnes | 2010 | | Catch | 67620 | tonnes | 2011 | | Catch | 58560 | tonnes | 2012 | | Catch | 86377 | tonnes | 2013 | | Catch | 104305 | tonnes | 2014 |
Assessment Assessment year: 2015 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 Overall Assessment Results The fit is satisfactory (The Pearson correlation coefficient was 76 percent). Scientific Advice An increase in catch and effort is observed in 2014 compared to 2013 for both of the Trachurus species. <i>T. trecae</i> remains overexploited whereas <i>T. trachurus</i> is fully exploited. Given the mixed nature of this fishery and the results of the projections, the Working Group, as a precautionary approach, recommends to reduce both effort and catch for the two species. 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.  http://www.fao.org/3/I5301Bi/i5301bi.pdfFAO. 2016b. Report of the FAO Working Group on the Assessment of Small Pelagic Fish off Northwest Africa. Casablanca, Morocco, 20–25 July 2015 / Rapport du Groupe de travail de la FAO sur l’évaluation des petits pélagiques au large de l’Afrique nord-occidentale. Casablanca, Maroc, 20-25 juillet 2015. FAO Fisheries and Aquaculture Report/FAO Rapport sur les pêches et l’aquaculture No. 1122. Rome, Italy/Italie. http://www.fao.org/3/a-i5511bb.pdf |
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