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Fact Sheet Title Fact Sheet |
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Blue Ling - Northeast Atlantic |
Blue Ling (Molva dypterygia) |
| Data Ownership | This document provided, maintained and owned by International Council for the Exploration of the Sea (ICES) , is part of ICES Advice data collection. |
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ident Block | ident Block | | Species List: | Species Ref: en - Blue ling, fr - Lingue bleue, es - Maruca azul, ru - Мольва голубая (=биркеланга) |
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| ident Block Blue Ling - Northeast Atlantic
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fao Major |
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27 | Atlantic, Northeast |
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Aq Res | Biological Stock: Yes
Value: Sub-Regional Management unit: Yes
Reference year: 2008
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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 Depth Zone: Slope (200 m - 1000 m). Vertical Dist: Demersal/Benthic. Geo Dist Geo Dist: Straddling between High Seas and EEZ Water Area Overview Spatial Scale: Sub-Regional Water Area Overview | Water Area Overview Blue Ling - Northeast Atlantic
fao Major | 27: Atlantic, Northeast |
| | | | Water Area Overview |
Water Area OverviewBlue Ling - Northeast Atlantic fao Major | 27:
Atlantic, Northeast | Large Marine Ecosystem Areas (LME) | 19: East Greenland Shelf | 20: Barents Sea | 21: Norwegian Shelf | 22: North Sea | 23: Baltic Sea | 24: Celtic-Biscay Shelf | 25: Iberian Coastal | 58: Kara Sea | 59: East Greenland Shelf/Sea | 60: Faroe Plateau | 64: Arctic Ocean | 65: Arctic Archipelago |
Aq Res Struct Biological Stock: Yes Bio Assess Results
Table 9.4.11.1. Blue ling landings by management unit. Source: ICES estimates. Note: no information for Areas Va and XIV prior to 1973 and no information on other areas prior to 1988.
Year | Va&XIV | Vb, VI, VII | other areas | Total | 1966 | n/a | 1311 | n/a | 1311 | 1967 | n/a | 1609 | n/a | 1609 | 1968 | n/a | 3010 | n/a | 3010 | 1969 | n/a | 1431 | n/a | 1431 | 1970 | n/a | 3648 | n/a | 3648 | 1971 | n/a | 2260 | n/a | 2260 | 1972 | n/a | 4982 | n/a | 4982 | 1973 | 2427 | 25402 | n/a | 27829 | 1974 | 2592 | 20949 | n/a | 23541 | 1975 | 2754 | 14576 | n/a | 17330 | 1976 | 2137 | 19846 | n/a | 21983 | 1977 | 2806 | 18201 | n/a | 21007 | 1978 | 2368 | 13280 | n/a | 15648 | 1979 | 3228 | 10778 | n/a | 14006 | 1980 | 9145 | 22770 | n/a | 31915 | 1981 | 9607 | 13309 | n/a | 22916 | 1982 | 8179 | 10970 | n/a | 19149 | 1983 | 7335 | 11491 | n/a | 18826 | 1984 | 4043 | 15504 | n/a | 19547 | 1985 | 1788 | 19256 | n/a | 21044 | 1986 | 2211 | 21018 | n/a | 23229 | 1987 | 1969 | 17430 | n/a | 19399 | 1988 | 2409 | 18811 | 4185 | 25405 | 1989 | 2600 | 14700 | 2610 | 19910 | 1990 | 3097 | 11195 | 1939 | 16231 | 1991 | 1979 | 10281 | 3274 | 15534 | 1992 | 2990 | 11399 | 2602 | 16991 | 1993 | 5958 | 8307 | 4793 | 19058 | 1994 | 2305 | 5953 | 1613 | 9871 | 1995 | 1833 | 7332 | 1440 | 10605 | 1996 | 1337 | 8530 | 1257 | 11124 | 1997 | 1348 | 10159 | 1000 | 12507 | 1998 | 1210 | 10588 | 1009 | 12807 | 1999 | 2093 | 12404 | 1915 | 16412 | 2000 | 2167 | 11049 | 988 | 14204 | 2001 | 1040 | 11653 | 1162 | 13855 | 2002 | 1405 | 8272 | 1806 | 11483 | 2003 | 2104 | 7420 | 1337 | 10861 | 2004 | 1386 | 6165 | 920 | 8471 | 2005 | 1604 | 5627 | 968 | 8199 | 2006 | 1862 | 5549 | 404 | 7815 | 2007* | 2102 | 5203 | 326 | 7631 |
Projection
| Figure 9.4.11.1. Blue ling landings by management unit. Source: ICES estimates. Note: no information for Areas Va and XIV prior to 1973 and no information on other areas prior to 1988. Yield and spawning stock biomass per recruit. |
Management Management unit: Yes Objectives
There is insufficient scientific information to establish the extent of putative stocks; however, blue ling may be sufficiently isolated at separate fishing grounds to be considered as individual management units. On this basis advice is presented for the following management units:
- Subdivisions Va and XIV (Iceland and Reykjanes ridge);
- Subdivisions Vb,VI, and VII (Faroes Rockall and Celtic shelf); and
- Subdivisions I, II, IIIa, IVa, VIII, IX, and XII. The latter grouping is a combination of isolated fishing grounds and these areas are grouped due to lack of data.
Available information indicates that stocks are stable at low levels in all areas. Total landings are presented in Table 9.4.11.1 and Figure 9.4.11.1.
Blue ling is a gadoid species that grows much faster than most deep-water species. It is particularly vulnerable to exploitation because fisheries can target the spawning aggregations. ICES has issued an answer to a request by NEAFC on spawning areas for blue ling in Section 9.3.2.7.
Sources
ICES.2009.Report of the ICES Advisory Committee, 2009. ICES Advice, 2009.
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