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| Marine Resource Fact Sheet |
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| Southern pink shrimp - Guinea-Bissau |
 | Crevette rose du sud (Penaeus notialis) - Guinée-Bissau |
| | 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 - Southern pink shrimp, fr - Crevette rose du Sud, es - Camarón rosado sureño |
Fishery IndicatorsProduction: Catch |
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| Geographic extent of Southern pink shrimp - Guinea-Bissau
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| FAO Fishing Statistical Subdivision Areas |
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| 34.3.13 | Atlantic, East central / 34.3.13 |
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| Main Descriptors | Considered a single stock: Yes
Spatial Scale: National
Management unit: Yes
Reference year: 2010
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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 Habitat and Biology Climatic zone: Tropical. Bottom type: Soft bottom muddy or muddy-sand. Depth zone: Coastal (0 m - 50 m); Shelf - Uppershelf (up to 100 m). Horizontal distribution: Littoral. Vertical distribution: Demersal/Benthic. Geographical Distribution Jurisdictional distribution: National Geo References  | | Geographic extent of Southern pink shrimp - Guinea-Bissau
| FAO Fishing Statistical Subdivision Areas | 34.3.13: Atlantic, East central / 34.3.13 |
| | | | | | More Geo References
| Exclusive Economic Zone Areas (EEZ) | GNB: Guinea-Bissau |
| | | | | | Intersecting Major FAO areas and LME areas |
The following area codes have been found as intersecting the distribution of Southern pink shrimp - Guinea-Bissau Resource Structure Considered a single stock: Yes Exploitation Fishery Indicators | Type | Measure | Value | Unit | Time period |
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| Production | Catch | 158 | tonnes | 1990 | | Catch | 51 | tonnes | 1991 | | Catch | 123 | tonnes | 1992 | | Catch | 52 | tonnes | 1993 | | Catch | 8 | tonnes | 1994 | | Catch | 15 | tonnes | 1995 | | Catch | 8 | tonnes | 1996 | | Catch | - | tonnes | 1997 | | Catch | - | tonnes | 1998 | | Catch | 105 | tonnes | 1999 | | Catch | 13 | tonnes | 2000 | | Catch | 21 | tonnes | 2001 | | Catch | 70 | tonnes | 2002 | | Catch | 6 | tonnes | 2003 | | Catch | 38 | tonnes | 2004 | | Catch | 26 | tonnes | 2005 | | Catch | 11 | tonnes | 2006 | | Catch | 30 | tonnes | 2007 | | Catch | 46 | tonnes | 2008 | | Catch | 119 | tonnes | 2009 | | Catch | 140 | tonnes | 2010 |
Assessment 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”. Assessment Model Type: Biomass-aggregated Schaefer dynamic production model For the catch data series of Penaeus notialis, the Working Group used the series of the Spanish shrimpers, the only catch recorded, for the period 1990 to 2010, and the CPUE series as abundance index from the same fleet. Note that the catches of 1997 and 1998 have been estimated, from the two previous years and thereafter. Overall Assessment Results The model provides a poor fit, with great variations in observed and predicted abundance indices. Moreover, the Working Group noted that catch and CPUE series show irregular fluctuations, which make the adjustment difficult. The results are not realistic for P. notialis. The Working Group notes that the catches of the artisanal fleet are not recorded, as well as those of the other industrial fleets that are not covered in the total catches, which are underestimated. In fact, the total CPUE of this species for the European shrimper fleets shows a decreasing trend from 2003. Nevertheless, an increasing CPUE trend for Spanish shrimpers has been observed since 2006. Therefore, the Working Group could not accept the assessment of this stock, until a more complete and better quality data series can be provided . Scientific Advice As a precautionary approach, not to increase the fishing effort. Given the uncertainty about the total catch no recommendation was made for the total catch level. To review and complete the catch and effort data series from the other industrial fleets and to estimate the catch data from the artisanal fleet. 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.  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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