Fishery Resources Monitoring System

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Angler - Western Channel and Bay of Biscay, 2008
Marine Resource  Fact Sheet
ICES Advice 2009
Angler - Western Channel and Bay of Biscay, 2008
Fact Sheet Citation  
Lophius piscatorius in Divisions VIIb-k and VIIIa,b
Owned byInternational Council for the Exploration of the Sea (ICES) – More
Related observationsLocate in inventorydisplay tree map
 
Species:
FAO Names: en - Angler(=Monk), fr - Baudroie commune, es - Rape, ar - عفريت البحر شائع, zh - 鮟鱇, ru - Удильщик европейский (=морской черт)
Geographic extent of Angler - Western Channel and Bay of Biscay
Main Descriptors
Considered a single stock: Yes        Spatial Scale: Sub-Regional
Management unit: Yes
 
 
Habitat and Biology
Depth zone: Shelf (50 m - 200 m).   Vertical distribution: Demersal/Benthic.  

Geographical Distribution
Jurisdictional distribution: Shared between nations

Water Area Overview
Spatial Scale: Sub-Regional

Geo References
Resource Structure
Considered a single stock: Yes
Exploitation
 

Factors affecting the fisheries and the stock

A trawl fishery by Spanish and French vessels developed in the Celtic Sea and Bay of Biscay in the 1970s. France and together still report more than 75% of the total landings of both species combined. The remainder is taken by the UK and Ireland (around 10% each) and (less than 5%).

Otter trawls (the main gear used by French, Spanish, and Irish vessels) currently take about 80% of the total landings of L. piscatorius, while around 60% of the UK landings are taken by beam trawlers and gillnetters. Over 95% of the total international landings of L. budegassa are taken by otter trawlers. There has been an expansion of the French gillnet fishery in the Celtic Sea and in the north of the Bay of Biscay in the last decade, mainly by vessels landing in Spain and fishing in medium-to-deep waters. Effort data show a decline in otter trawling activity in medium and deep water in Subarea VII from the early 1980s to the late 1990s.

Regulations and their effects

There is no minimal landing size for anglerfish but an EU Council Regulation (No. 2406/96) laying down common marketing standards for certain fishery products fixes a minimum weight of 500 g for anglerfish. Council Regulation (EC) No. 1954/2003 established measures for the management of fishing effort in a ‘biologically sensitive area’ in Subareas VIIb, VIIj, VIIg, and VIIh. Effort exerted within the ‘biologically sensitive area’ by the vessels of each EU Member State may not exceed their average annual effort (calculated over the period 1998–2002).

The quota has been restrictive for some fleets and substantial underreporting of landings is known to have occurred. Information from the Irish fishery indicates that underreporting of total landings has been a problem in recent years due to restrictive individual vessel quotas. Since 2005 specific anglerfish licences have been introduced in Ireland to improve compliance. There has been an increased enforcement on anglerfish quotas since 2006.
Assessment
 
Assessment Model
Methodology

Scientific basis

Data and methods

The advice is based on trends in survey data and length distribution of survey catches.

Uncertainties in assessment and forecast

The French EVHOE survey covers a wide area of the distribution of both Lophius species and gives reliable estimates of pre-recruits for those species while being noisier for adults, due to the low number of adults caught especially in the beginning of the time-series.

The increase in discarding in recent years has resulted in uncertainties in recent levels of catch.

Comparison with previous assessment and advice

The assessment is consistent with the last assessment provided by ICES.

Advice is based on recent effort due to concerns about the accuracy of landings in recent years and increased discarding rates.
Overall Assessment Results


Figure 5.4.20.1. Total landings of L. piscatorius and L. budegassa in VIIb–k and VIIIa,b,d.


Figure 5.4.20.2. French EVHOE surveys biomass and total abundance indices from 1997 to 2008. Combined Bay of Biscay and Celtic Sea area. Error bars indicate +/− 2 s.d.


Figure 5.4.20.3. Anglerfish (L. piscatorius) in Divisions VIIb–k and VIIIa,b,d. Abundance indices at length observed in the FR-EVHOE-S survey from 1997 to 2008 in Subarea VII and Divisions VIIIa,b,d.(in Nb per 30’) and the EW-FSP Survey from 2003 to 2008 in the Celtic Sea (in Nb per m beam per Hr).


Figure 5.4.20.4. Anglerfish (L. budegassa) in Divisions VIIb–k and VIIIa,b,d. Abundance indices at length observed in the FR-EVHOE-S survey from 1997 to 2008 in Subarea VII and Divisions VIIIa,b,d.(in Nb per 30’) and the EW-FSP Survey from 2003 to 2008 in the Celtic Sea (in Nb per m beam per Hr).



Table 5.4.20.2. Anglerfish (L. piscatorius and L. budegassa) in Divisions VIIb–k and VIIIa,b,d. Landings in tonnes by Fishery Unit.





Table 5.4.20.3. Table 5.4.20.3. cont.
Table 5.4.20.3.cont.
Country 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008*
Belgium 63 60 128 171 175 143 103 69 73 29
France                   2
Ireland 196 227 213 200 189 183 171 176 189 127
Netherlands 1 2                
UK - Eng+Wales+N.Irl. 263 166 190 228 209 198 158 151 138  
UK - England & Wales                    
UK - N. Ireland                    
UK - Scotland 10 9 19 20 18 52 2 2 4  
UK - Isle of Man 9 5 2 1   3        
Total 479 409 424 449 416 436 331 329 331  
* - Preliminary

Reference Point
 

As a consequence of recently identified problems with growth estimates, previous reference points are not considered to be valid. Reference points will have to be redefined based on an approved analytical assessment.
Scientific Advice

Single-stock exploitation boundaries

ICES advises on the basis of precautionary considerations that the effort in fisheries that catch anglerfish should not be allowed to increase.


Table 5.4.20.1. Anglerfish (L. piscatorius and L. budegassa) in Divisions VIIb–k and VIIIa,b,d. Single-stock exploitation boundaries (advice), management, and landings.
Year

ICES

Advice / Single-Stock Exploitation Boundaries

Predicted catch corresp.

To Single-Stock Exploitation Boundaries

Predicted catch corresp.

To advice

Agreed

TAC1,2

ICES

Landings 2

Landings of L. piscat. Landings of L. budeg.
1987 Not assessed -   39.08 29.5 21.9 7.6
1988 Not assessed -   42.99 28.5 20.1 8.4
1989 Not assessed -   42.99 30.0 20.5 9.5
1990 Not assessed -   42.99 29.4 19.8 9.6
1991 No advice -   42.99 25.1 16.2 8.8
1992 No advice -   42.99 21.1 12.8 8.3
1993 Concern about L. pisc. SSB decrease -   25.1 20.1 13.5 6.7
1994 SSB decreasing, still inside safe biological limits -   23.9 21.9 16.1 5.8
1995 No increase in F 20.0   23.2 26.8 19.7 7.1
1996 No increase in F 30.3   30.4 30.2 22.1 8.1
1997 No increase in F 34.3   34.3 29.8 21.7 8.1
1998 No increase in F 33.0   34.3 28.2 19.6 8.6
1999 No increase in F 32.9   34.3 25.03 17.63 7.43
2000 At least 20% decrease in F < 22.3   29.6 20.63 14.03 6.63
2001 Reduce F below Fpa < 27.6   27.6 22.63 16.83 5.83
2002 Reduce F below Fpa < 19.9   23.7 26.43 20.03 6.5
2003 At least 30% decrease in F < 16.4   21.04 33.23 24.93

8.43

2004 At least 10% decrease in F < 26.7   26.7 35.13 27.73 7.53
2005 Maintain F below Fpa < 37.8   31.2 32.83 25.33 7.53
2006 Maintain F below Fpa <33.9   34.0 31.23 25.53 5.73
2007 Maintain F below Fpa <36.0   36.0 36.1 29.7 6.4
2008 Less than average landings <33.0   36.0 32.2 24.6 7.6
2009 Same advice as last year <33.0   36.0      
2010 No increase in effort -          

Weights in ‘000 t.

1 Includes Division VIIa and Divisions VIIId,e.

2 Applies to both species.

3 Revised.

4 TAC was changed during 2003 from 19 400 t to 21 000 t following fast-track advice from ICES.



Management
Management unit: Yes

Management Objectives

There are no explicit management objectives for these stocks.
Management Advice

Management considerations

At recent levels of effort the stock has been increasing.

The majority of the anglerfish catch consists of young fish. There are indications that discarding has increased in recent years. The increase in discarding may be related to larger year classes recruiting in the fishery. Research vessel surveys indicate an increase in smaller fish on the fishing grounds in recent years. Discarding is also known to be partly dependent on market conditions and TAC restrictions. Reliable estimates of discards are not available.

L. piscatorius and L. budegassa are both caught on the same grounds and by the same fleets and are usually not separated in the landings. Management measures for both species must be considered together and in conjunction with other species caught in these fisheries (sole, cod, rays, megrim, Nephrops, and hake).

TACs are set for both species combined. There are separate TACs for Subarea VII and Divisions VIIIa,b,d,e. The advice applies to a smaller area (Divisions VIIb–k and VIIIa,b,d) than the management area. However, the advice covers the majority of the area as recent landings in Division VIIa have been relatively small compared to the total TAC.
Biological State and Trend
Exploitation rate: Unknown
Abundance level: Unknown

L. piscatorius


Spawning biomass in relation to precautionary limits Fishing mortality in relation to precautionary limits Fishing mortality in relation to high long-term yield

Fishing mortality in relation to

agreed target

Comment

Unknown Unknown Unknown N/A  



The state of the stock is unknown. It has not been possible to quantify SSB, fishing mortality, and recruitment for this stock. However, survey data (biomass and abundance indices, length distribution) give indication that the biomass has been increasing as a consequence of the good recruitment observed in 2001, 2002, and 2004 and has stabilized in recent years.

There are evidences of good recruitment in 2008.

L. budegassa


Spawning biomass in relation to precautionary limits Fishing mortality in relation to precautionary limits Fishing mortality in relation to high long-term yield

Fishing mortality in relation to

agreed target

Comment

Unknown Unknown Unknown N/A  



The state of the stock is unknown. It has not been possible to quantify SSB, fishing mortality, and recruitment for this stock. However, survey data give indication that the biomass has shown a continuous increase since the mid-2000s as a consequence of several good incoming recruitments. There is good evidence of a strong incoming recruitment from 2008 data.
Source of information
 
ICES. 2009. Report of the ICES Advisory Committee, 2009. ICES Advice, 2009.
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