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Fact Sheet Title Fact Sheet |
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European hake - Northern and Southern Alboran Sea |
Merluccius merluccius - Northern and Southern Alboran Sea (GSAs 1, 3) |
| 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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Monitoring Range Min2016. ident Block | ident Block | | Species List: | Species Ref: en - European hake, fr - Merlu européen, es - Merluza europea, ru - Мерлуза восточноатлантическая |
Fishery IndicatorsProduction: Catch; Landed Volume |
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| ident Block European hake - Northern and Southern Alboran Sea
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gfcm Sub Area |
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1 | Northern Alboran Sea |
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3 | Southern Alboran Sea |
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Aq Res | Biological Stock: No
Value: Sub-Regional Reference year: 2019 |
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. [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; Hard bottom. Depth Zone: Shelf (50 m - 200 m); Slope (200 m - 1000 m). Horizontal Dist: Neritic. Vertical Dist: Demersal/Benthic. Water Area Overview Spatial Scale: Sub-Regional Water Area Overview | Water Area Overview European hake - Northern and Southern Alboran Sea
gfcm Sub Area | 1: Northern Alboran Sea | 3: Southern Alboran Sea |
| | | | Water Area Overview
| | | | Water Area Overview |
Water Area OverviewEuropean hake - Northern and Southern Alboran Sea 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] Exploit European hake is a target demersal species of the Mediterranean fishing fleets. It is largely exploited in GSA 1, mainly by trawlers on the shelf and slope (97 percent landings), but also by small-scale fisheries using gillnets and trammel nets (3 percent) (average percentages estimated in 2019). The trawler fleet (118 boats in 2018) is the largest in landings (294 tonnes in 2019). The trawl fishing fleet in GSA 3 is heterogeneous; longliners are not found. The number of trawlers operating in this area is 82. European hake in GSA 3 is found at depths ranging from 50 m to 510 m. In the period 2016-2018, the mean annual European hake production was 124 tonnes. Fishery Indicators Type | Measure | Value | Unit | Time period |
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Production | Catch | 503.98 | tonnes | 2007 | Catch | 425.78 | tonnes | 2008 | Catch | 769.14 | tonnes | 2009 | Catch | 675.81 | tonnes | 2010 | Catch | 848.21 | tonnes | 2011 | Catch | 615.87 | tonnes | 2012 | Catch | 497.11 | tonnes | 2013 | Catch | 357.35 | tonnes | 2014 | Catch | 280.12 | tonnes | 2015 | Catch | 284.47 | tonnes | 2016 | Catch | 441.85 | tonnes | 2017 | Catch | 554.18 | tonnes | 2018 | Catch | 358.89 | tonnes | 2019 | Landed Volume | 503.98 | tonnes | 2007 | Landed Volume | 425.78 | tonnes | 2008 | Landed Volume | 769.14 | tonnes | 2009 | Landed Volume | 675.81 | tonnes | 2010 | Landed Volume | 848.21 | tonnes | 2011 | Landed Volume | 615.87 | tonnes | 2012 | Landed Volume | 497.11 | tonnes | 2013 | Landed Volume | 357.35 | tonnes | 2014 | Landed Volume | 280.12 | tonnes | 2015 | Landed Volume | 284.47 | tonnes | 2016 | Landed Volume | 441.85 | tonnes | 2017 | Landed Volume | 554.18 | tonnes | 2018 | Landed Volume | 358.89 | tonnes | 2019 |
Bio Assess Data This assessment was done in the framework of the CopeMed II Working Group on Demersal Species. The meeting was held on 8 January 2021 by video conference and was attended by experts from Morocco and Spain. The assessment was carried out using official landings and data. Assess Models Type: Age-structured XSA The state of exploitation in the GSAs 1 and 3 areas of this stock was assessed by means of VPA XSA (Shepherd, 1999). The software used was the Lowestoft suite (Darby and Flatman, 1994) and FLR. Results XSA results show that SSB and catch show a decreasing trend from 2011 to 2016, then increase from 2016 to 2018, and decrease again for the last year. Recruitment shows a decreasing trend from 2010 to 2015, an increase from 2015 to 2017 and a decrease for the two last years. Fishing mortality (Fbar0-3) showed a decrease from 2013 to 2016, an increase from 2016 to 2018 and decreases for the last year. Y/R analysis shows that the Fref = Fcurrent (1.28) exceeds the Y/R F0.1 reference point (0.17). Sci Advice Reduce fishing mortality. Sources FAO. 2021. General Fisheries Commission for the Mediterranean (GFCM). 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.pdfGeneral Fisheries Commission for the Mediterranean (GFCM) Stock Assessment Results (STAR). https://www.fao.org/gfcm/data/star/en/ |
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