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Fact Sheet Title Fact Sheet |
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Deep-water rose shrimp - Strait of Sicily |
Parapenaeus longirostris - Strait of Sicily (GSAs 12-16) |
| Data Ownership | This document provided, maintained and owned by General Fisheries Commission for the Mediterranean (GFCM) , is part of GFCM Stock Status Reports data collection. |
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ident Block | ident Block | | Species List: | Species Ref: en - Deep-water rose shrimp, fr - Crevette rose du large, es - Gamba de altura, ar - إيربيان وردية أعماق المياه, zh - 长额拟对虾, ru - Креветка розовая глубоководная |
Fishery IndicatorsProduction: Catch |
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| ident Block Deep-water rose shrimp - Strait of Sicily
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gfcm Sub Area |
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12 | Northern Tunisia |
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13 | Gulf of Hammamet |
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14 | Gulf of Gabes |
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15 | Malta Island |
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16 | South of Sicily |
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Aq Res | Biological Stock: No
Value: Sub-Regional Management unit: Yes
Reference year: 2019
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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. |
| | | | Aq Res State Trend In overexploitation with relative low biomass. [The GFCM methodology to provide stock status and management advice is described in the Appendix F of the Sixteenth Session of the Scientific Advisory Committee Report. See the Bibliography section.] Habitat Bio Climatic Zone: Temperate. Bottom Type: Soft bottom. Depth Zone: Slope (200 m - 1000 m). Horizontal Dist: Neritic. Vertical Dist: Demersal/Benthic. Geo Dist Geo Dist: Shared between nations Water Area Overview Spatial Scale: Sub-Regional Water Area Overview | Water Area Overview Deep-water rose shrimp - Strait of Sicily
gfcm Sub Area | 12: Northern Tunisia | 13: Gulf of Hammamet | 14: Gulf of Gabes | 15: Malta Island | 16: South of Sicily |
| | | | Water Area Overview
fao Div | 37.1.3: Sardinia | 37.2.2: Ionian |
| | | | Water Area Overview |
Water Area OverviewDeep-water rose shrimp - Strait of Sicily Aq Res Struct Biological Stock: No Stock assessment in the GFCM area of application is often conducted by management units, based on GSAs. This method does not ensure that the whole stock is assessed, since stocks may cover several different management units. In some cases, when there is scientific evidence of a stock spreading through different GSAs, as well as information on species from different GSAs, existing information is combined across GSAs. This is then defined as a “joint stock assessment of a shared stock”. The GFCM recommends that when scientific evidence of shared stocks exists, joint stock assessments should be attempted. A number of activities aimed at achieving a better definition of stock boundaries are currently being conducted at the GFCM level. [The State of Mediterranean and Black Sea Fisheries, 2016] [Deepwater rose shrimp - Strait of Sicily is a shared stock and a joint stock assessment was conducted] Exploit Deep-water rose shrimp is caught by bottom otter trawling in the Strait of Sicily together with other commercial species such as Norway lobster, giant red shrimp, European hake, scorpionfish ( Helicolenus dactylopterus), greater forkbeard ( Phycis blennioides), Atlantic horse mackerel and monkfish ( Lophius spp.). Scientific data available indicate that exploitation by the fishing fleets of Tunisia, Malta, Libya and Italy are targeting a single shared stock of deep-water rose shrimp. Four fishing segments were considered in the stock assessment: Italian coastal trawlers, Italian distant trawlers, Tunisian trawlers and Maltese trawlers. Information on Libyan fisheries were not currently available. Sicilian coastal trawlers (length overall (LOA) between 12 m and 24 m) targeting deep-water rose shrimp are based in seven harbours along the southern coasts of Sicily. These trawlers operate mainly on short-distance fishing trips, which range from one to two days at sea. Sicilian distant trawlers (LOA > 24 m) perform longer fishing trips, which may last up to four weeks. Sicilian distant trawlers operate offshore, in both Italian and international waters of the south-central Mediterranean. In the Maltese Islands small vessels measuring 12 m to 24 m in length target rose shrimp at depths up to 600 m. Fishing grounds for Maltese vessels are located to the north and north-west of Gozo. Tunisian trawl vessels that target rose shrimp measure around 24 m in LOA. Tunisian vessels operate primarily in northern Tunisia (GSA 12) where 90 percent of the country’s total deep-water rose shrimp catches originate. The great majority of these catches are landed in the ports of Bizerte and Kelibia. Fishery Indicators Type | Measure | Value | Unit | Time period |
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Production | Catch | 6664.7 | tonnes | 2019 | Catch | 8309.1 | tonnes | 2018 | Catch | 8079.1 | tonnes | 2017 | Catch | 7591.9 | tonnes | 2016 | Catch | 8175.1 | tonnes | 2015 | Catch | 8391.1 | tonnes | 2014 | Catch | 9081.1 | tonnes | 2013 | Catch | 8113 | tonnes | 2012 | Catch | 9543.2 | tonnes | 2011 | Catch | 9553.1 | tonnes | 2010 | Catch | 9069.4 | tonnes | 2009 | Catch | 7342.4 | tonnes | 2008 | Catch | 7407.1 | tonnes | 2007 |
Bio Assess Data Catch-at-age and landing data matrices are from Italy (otter trawls 12-24 m and otter trawls > 24), Malta and Tunisia from 2007 to 2019. Number at age from MEDITS survey in GSA 15 and 16 for tuning. VBGF and length-weight relationships: L∞ = 42.705, k = 0.67, t0 = -0.208, a = 0.0029, b = 2.4818 for females and L∞ = 33.56, k = 0.73, t0 = 0.13, a = 0.0034, b = 2.4096 for males. M was estimated by Prodbiom Method (forced). Assess Models Type: Age-structured XSA The assessment was performed using XSA as implemented in the FLR. According to the recommendations of the WG, current F was obtained as average of the last three years (2017-2019). Results Current F(0-2) estimated by the average of three years was 1.23. F0.1 estimated by using FLR routine and the National Oceanic and Atmospheric Administration (NOAA) Y/R version 3.3 ranged between 0.84 and 0.93. The SSB estimated by the average of three years (2017-2019) was falling within the 66th percentile of the SSB time series. Sci Advice Reduce fishing mortality. Management Management unit: Yes Sources FAO. 2021. General Fisheries Commission for the Mediterranean. Report of the twenty-second session of the Scientific Advisory Committee on Fisheries, online, 22–25 June 2021. FAO Fisheries and Aquaculture Report No. 1347. Rome. https://www.fao.org/3/cb7622en/cb7622en.pdfReport of the Working Group on Stock Assessment of Demersal Species (WGSAD). Online, 18–23 January 2021. https://www.fao.org/gfcm/technical-meetings/detail/en/c/1412431/ Bibliography FAO. 2020. The State of Mediterranean and Black Sea Fisheries 2020. General Fisheries Commission for the Mediterranean. Rome. https://www.fao.org/3/cb2427en/cb2427en.pdfFAO. 2016. The State of Mediterranean and Black Sea Fisheries. General Fisheries Commission for the Mediterranean. Rome, Italy. https://www.fao.org/3/i5496e/i5496e.pdfFAO General Fisheries Commission for the Mediterranean/Commission générale des pêches pour la Méditerranée. Report of the sixteenth session of the Scientific Advisory Committee. St. Julian’s, Malta, 17–20 March 2014/Rapport de la seizième session du Comité scientifique consultatif. Saint Julien, Malte, Malte, 17-20 mars 2014. FAO Fisheries and Aquaculture Report/FAO Rapport sur les pêches et l’aquaculture. No. R1102. Rome. 2015. 250 pp. https://www.fao.org/3/i4381b/i4381b.pdf |
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