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| Fact Sheet Title Fact Sheet |
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| Greater argentine - Iceland Grounds |
 | Greater Silver Smelt in Subdivisions Va |
| | 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 - Greater argentine, fr - Grande argentine |
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| ident Block Greater argentine - Iceland Grounds
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| fao Div |
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| 27.5.a | Iceland Grounds (Division 27.5.a) |
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| Aq Res | Biological Stock: Yes
Value: Sub-Regional
Reference year: 2008 |
| 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 The status of greater silver smelt in Subdivision Va is unknown. Habitat Bio Depth Zone: Slope (200 m - 1000 m). Vertical Dist: Demersal/Benthic. Geo Dist Geo Dist: National Water Area Overview Spatial Scale: Sub-Regional Water Area Overview  | | Water Area Overview Greater argentine - Iceland Grounds
| fao Div | 27.5.a: Iceland Grounds (Division 27.5.a) |
| | | | | | Water Area Overview |
Water Area OverviewGreater argentine - Iceland Grounds | fao Major | 27:
Atlantic, Northeast | | Large Marine Ecosystem Areas (LME) | 19: East Greenland Shelf | | 21: Norwegian Shelf | | 59: East Greenland Shelf/Sea |
Aq Res Struct Biological Stock: Yes Exploit Factors affecting the fisheries and the stockThe fisheries of greater silver smelt have been managed through research licences issued by the Icelandic Ministry of Fisheries. The licenses are valid for a short time only and sampling is required in the licenses. Catches increased in 1998 to 13400 tonnes due to licenses issued for directed fishery. Subsequently, landings decreased with the declining interest in the fishery. The fishery has changed in depth range over time towards shallower waters. Bio Assess Assess Models Methodology Scientific basisThe only information on this stock is landings and length frequency data. Comparison with previous assessment and adviceThere is no assessment. The advice is similar to the previous (2006) advice. Results Table 9.4.13.1.1. Greater silver smelt in Subdivision Va. Working group estimates of total landings.
| Year |
TOTAL |
| 1988 |
0 |
| 1989 |
0 |
| 1990 |
0 |
| 1991 |
0 |
| 1992 |
1 |
| 1993 |
1 |
| 1994 |
1 |
| 1995 |
0 |
| 1996 |
1 |
| 1997 |
3 |
| 1998 |
13 |
| 1999 |
7 |
| 2000 |
6 |
| 2001 |
3 |
| 2002 |
5 |
| 2003 |
3 |
| 2004 |
4 |
| 2005 |
4 |
| 2006 |
5 |
| 2007* |
4 |
| *Preliminary. Weights in ‘000 t. |
 | Figure 9.4.13.1.1. Greater silver smelt. Total landings in Subdivision Va.  |
Sci Advice Single-stock exploitation boundariesDue to its low productivity, greater silver smelt can only sustain low rates of exploitation. Fisheries on such species should always be accompanied by programmes to collect data on both target and bycatch fish. The target fishery should not be allowed to expand unless it can be shown that it is sustainable. Management Advice Management considerationsThe variability in the catches appears to reflect market demand. In Subdivision Va the fishery has changed from a bycatch to a targeted fishery. Smaller fish have been caught in recent years. This could be related to a change in fishing depth (Figure 9.4.13.1.1), to recruiting year classes, or to depletion of larger fish. Greater silver smelt are a bycatch in bottom trawls fishing for redfish. Only small amounts were reported prior to 1996 as most of the fish was discarded. Sources ICES.2009.Report of the ICES Advisory Committee, 2009. ICES Advice, 2009. |
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