|
| Marine Resource Fact Sheet |
| |
| Anchovy - Gulf of Lions, 2010 |
 | Engraulis encrasicolus - Gulf of Lions |
| | Owned by | General Fisheries Commission for the Mediterranean (GFCM) More |
|
| Related observations | Locate in inventory | | | | Species: | | FAO Names : en - European anchovy, fr - Anchois, es - Boquerón |
|
|
| Geographic extent of Anchovy - Gulf of Lions
Map tips
- Click on
 to turn layers on and off
- Double-click to zoom in
- Drag to pan
- Hold down the shift key and drag to zoom to a particular region
 | GFCM geographical sub-areas |
|---|
| 7 | Gulf of Lions |
|---|
|
|
|
|
|
| Main Descriptors | Considered a single stock: Biological Stock
Spatial Scale: Sub-Regional
|
| 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. |
| | | | | | Habitat and Biology Climatic zone: Temperate. Bottom type: Unspecified. Depth zone: Unspecified. Horizontal distribution: Neritic. Vertical distribution: Pelagic. Geographical Distribution Jurisdictional distribution: Straddling between High Seas and EEZ Water Area Overview Spatial Scale: Sub-Regional Gulf of LionsGeo References | | Geographic extent of Anchovy - Gulf of Lions
| GFCM geographical sub-areas | 7: Gulf of Lions |
| | | | | | Other georeferences
| FAO Fishing Statistical Division Areas | 37.1.2: Gulf of Lions |
| | | | | | Intersecting Major FAO areas and LME areas |
The following area codes have been found as intersecting the distribution of Anchovy - Gulf of Lions Resource Structure Considered a single stock: Aq Res Struct Exploitation The fishery is almost exclusively by trawlers, targeting anchovy and sardine. Two fleets are described, trawlers and purse seiners. Trawls (12-24 m) catching small gregarious pelagic: Average from 2005 to 2010: 2960 MT. There are a total of 20 boats targeting anchovy. Ratio Landing/Biomass: 0.12%. The main accompanying species (since 2008) are: European anchovy ( Engraulis encrasicolus); Atlantic mackerel ( Scomber scombrus); Chub mackerel ( Scomber japonicus); Atlantic horse mackerel ( Trachurus trachurus); Mediterranean horse mackerel ( Trachurus mediterraneus); European hake ( Merluccius merluccius). Occasional accompanying species include: Round sardinella ( Sardinella aurita); Seabreams ( Pagellus spp.); Blue whiting ( Micromesistius poutassou). Assessment Data Landings, length and biological samplings were obtained from Official Statistics, IEO (Instituto Español de Oceanografía) Sampling Network and dedicated Acoustic Surveys. Assessment Model Type: Biomass-aggregated Acoustic Biomass estimates Results The stock seems to be highly unbalanced in 2009, 2010 and 2011, with a very low abundance of commercial-sized anchovy (groups 2+). Even if total biomass was not very much lower than the average level of the last six years (20, 25 000 MT), most of the recorded biomass consisted of 1-group anchovy, and even these showed a mean size and condition factors appreciably below the values usually found for this stock. However, in comparison with sardine, the biomass trend in recent years seems to be stable, with a small increasing trend. The system of the Gulf of Lyons show important signs of disequilibrium since 2008, with important changes in structure of the stocks of sardine and anchovy, and an unusually high abundance of sprat. This one began to appear in 2008, and his biomass have a very positive trend with 5, 8, 14, 25 000 MT from 2008 to 2011. Scientific Advice For scientific researchThe WG acknowledged that there is evidences on changes in the pelagic ecosystem of this area, and suggested that further ecological studies have to be conducted to clarify the ecosystem status. The WG also recommended that further research in non-local effort in this area has to be made in order to improve the historical perspective (i.e. landings and boats operating in the area but not reporting to GSA07). For management considerationTo not increase fishing effort. Biological State and Trend Exploitation state: Fully exploitedExploitation rate: Moderate fishing
Abundance level: Low abundance Source of information Report of the Working Group on Stock Assessment of Small Pelagic Species. FAO-GFCM Chania, Crete (Greece) 24-29 October 2011. 2011 FAO  . |
|
| |
|
