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| Fact Sheet Title Fact Sheet |
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| Coastal shrimps - Nigeria and Cameroon |
 | Crevettes côtières - Nigéria et Cameroun |
| | 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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| ident Block | ident Block | | | | Species List: | | Species Ref: en - Guinea shrimp, fr - Crevette guinéenne, es - Camarón guineo |
Fishery IndicatorsProduction: Catch | Species Ref: en - Southern pink shrimp, fr - Crevette rose du Sud, es - Camarón rosado sureño |
Fishery IndicatorsProduction: Catch | Species Ref: en - Giant tiger prawn, fr - Crevette géante tigrée, es - Langostino jumbo, zh - 斑节对虾 |
Fishery IndicatorsProduction: Catch |
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| ident Block Coastal shrimps - Nigeria and Cameroon Map tips - Click on
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| fao Div |
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| 34.3.5 | Central Gulf of Guinea |
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| Aq Res | Biological Stock: Yes Value: Regional
Management unit: Yes Reference year: 2010
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| 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. |
| | | | | | Habitat Bio Climatic Zone: Tropical. Depth Zone: Coastal (0 m - 50 m). Horizontal Dist: Estuarine; Littoral. Vertical Dist: Demersal. Geo Dist Geo Dist: Shared between nations Water Area Overview  | | Water Area Overview Coastal shrimps - Nigeria and Cameroon
| fao Div | 34.3.5: Central Gulf of Guinea |
| | | | | | Water Area Overview
| Exclusive Economic Zone Areas (EEZ) | NGA: Nigeria | | CMR: Cameroon |
| | | | | | Water Area Overview |
Water Area OverviewCoastal shrimps - Nigeria and Cameroon Aq Res Struct Biological Stock: Yes In these groups we include other fleets targeting Penaeus notialis, which were not considered in Section 6.3, because the catch data available comprise a sum of species captured in the same zones and with the same fishing gears, but the catches have not been separated into species. The main species are Parapenaeopsis atlantica, Penaeus notialis and P. monodon combined. The Penaeus notialis is the most important species. Exploit Fishery Indicators | Type | Measure | Value | Unit | Time period |
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| Production | Catch | 8697 | tonnes | 1990 | | Catch | 8144 | tonnes | 1991 | | Catch | 12436 | tonnes | 1992 | | Catch | 14217 | tonnes | 1993 | | Catch | 10922 | tonnes | 1994 | | Catch | 14956 | tonnes | 1995 | | Catch | 12566 | tonnes | 1996 | | Catch | 15150 | tonnes | 1997 | | Catch | 20397 | tonnes | 1998 | | Catch | 11326 | tonnes | 1999 | | Catch | 11538 | tonnes | 2000 | | Catch | 15295 | tonnes | 2001 | | Catch | 13751 | tonnes | 2002 | | Catch | 13731 | tonnes | 2003 | | Catch | 11711 | tonnes | 2004 | | Catch | 12678 | tonnes | 2005 | | Catch | 12181 | tonnes | 2006 | | Catch | 11319 | tonnes | 2007 | | Catch | 11688 | tonnes | 2008 | | Catch | 9718 | tonnes | 2009 | | Catch | 8107 | tonnes | 2010 |
Bio Assess Assessment year: 2011 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”. Assess Models Type: Biomass-aggregated Schaefer dynamic production model For the catch series, data from shrimpers off Nigeria (1990–2010) were used by the Working Group. The abundance indices used were the CPUEs of this same fleet. Note that effort data was in number of vessels. An estimate was made from the CPUE in kg/vessel to kg/fishing day, based on the average of fishing days by vessel per year, which has been calculated as 270 days. The Working Group intended to make a joint assessment of coastal shrimps in Nigeria and Cameroon, as a single stock, however this was not possible since the countries use different units for the effort data. Furthermore, Cameroon has large changes in effort (increase) and catch (decrease) series data between 1990 and 2007, leading to a general decrease in the CPUE series which is not compatible with the situation observed for Nigeria. Results The Working Group rejects the results of the model. Sci Advice The Working Group was not in a position to provide specific management advice for these stocks. However decided to adopt a precautionary approach while waiting to obtain more information. It recommends that no new shrimp licences should be issued for fishing these stocks. Management Management unit: Yes Sources 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.  http://www.fao.org/3/I5301Bi/i5301bi.pdfFAO. 2015. Report of the FAO/CECAF Working Group on the Assessment of Demersal Resources – Subgroup South. Accra, Ghana, 15–24 November 2011 / Rapport du Groupe de travail FAO/COPACE sur l’évaluation des ressources démersales – Sous-groupe Sud. Accra, Ghana, 15-24 novembre 2011. CECAF/ECAF Series/COPACE/PACE Séries. No. 15/76. Rome, Italy/Italie. http://www.fao.org/3/a-i5138b.pdf |
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