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Orange roughy - Northeast Atlantic, 2008
Marine Resource  Fact Sheet
ICES Advice 2009
Orange roughy - Northeast Atlantic, 2008
Fact Sheet Citation  
Orange roughy (Hoplostethus atlanticus)
Owned byInternational Council for the Exploration of the Sea (ICES) – More
Related observationsLocate in inventorydisplay tree map
 
Species:
FAO Names: en - Orange roughy, fr - Hoplostète orange, es - Reloj anaranjado, ru - Большеголов атлантический (=берикс исландский)
Geographic extent of Orange roughy - Northeast Atlantic
Main Descriptors
Considered a single stock: Yes        Spatial Scale: Sub-Regional
Management unit: Yes
 
 
Habitat and Biology
Depth zone: Slope (200 m - 1000 m).   Vertical distribution: Demersal/Benthic.  

Geographical Distribution
Jurisdictional distribution: Straddling between High Seas and EEZ

Water Area Overview
Spatial Scale: Sub-Regional

Geo References
Resource Structure
Considered a single stock: Yes
Exploitation
 

Factors affecting the fisheries and the stock

Regulations and their effects

Closed areas aimed at protecting orange roughy in Subdivisions VI and VII were implemented in 2005. Their effectiveness cannot be determined as their boundaries do not correspond to ICES rectangles.

Changes in fishing technology and fishing pattern

The fisheries for orange roughy on separate aggregations west of Ireland in Subarea VII peaked in 2002 and has declined markedly since (Figure 9.4.14.1). The fishery in Subarea VI has decreased dramatically since the depletion of the main aggregation on the Hebrides Terrace Seamount in the late 1980s and early 1990s (Figure 9.4.14.1). Faroese fisheries in Subareas VI, XII, and X and the Icelandic fishery in Division Va have ceased (Figure 9.4.14.1).
Assessment
 
Assessment Model
Methodology

Scientific basis

Data and methods

Information on landings by Division or Subarea (Figure 9.4.14.1) and sporadic cpue information is available (see Figures 9.4.14.2 and 9.4.14.3), though not from the major fishing grounds. No analytical assessment was carried out. Provisional biomass estimates were derived from an acoustic survey in Subarea VII. However, the precision of these estimates was low.

Summaries of the total landings for all areas are given in Table 9.4.14.2. Landings by Subarea and by nation are given in Table 9.4.14.1.

Information from the fishing industry

Results from a cooperative project between the French industry and IFREMER indicate that there is no discarding of orange roughy by French deep-sea trawlers in Subareas VI and VII.

Comparison with previous assessment and advice

The perception of the state of orange roughy spawning aggregations in Subarea VI and VII as depleted and vulnerable remains unchanged since 2006. The 2008 advice remains unchanged from 2006.
Overall Assessment Results




Figure 9.4.14.1. ICES estimates of international catch of orange roughy. a) areas cumulative, b) per area separately.


Figure 9.4.14.2. Cpue from French trawlers in Subarea VIa for 400–600 kW power vessels (open triangles) and for 1400–1600 kW vessels (solid squares). The line is a smooth curve through the latter series.


Figure 9.4.14.3. Cpue from French trawlers in Subarea VII. Cpue series for 400–600 kW power vessels (open triangles) and for 1400–1600 kW vessels (solid squares). The line is a smooth curve through the latter series, excluding the high 1997 point.


Table 9.4.14.1. Orange roughy. ICES estimates of catch by country and area. Orange roughy in Division Va.
Year Iceland Total
1988 - 0
1989 - 0
1990 - 0
1991 65 65
1992 382 382
1993 717 717
1994 158 158
1995 64 64
1996 40 40
1997 79 79
1998 28 28
1999 14 14
2000 68 68
2001 19 19
2002 10 10
2003 0 0
2004 28 28
2005 9 9
2006 2 2
2007 0 0
*Preliminary.


Table 9.4.14.1. Orange roughy. ICES estimates of catch by country and area (continued). Orange roughy in Division Vb.
Year Faroes France Total
1988 - - 0
1989 - - 0
1990 - 22 22
1991 - 48 48
1992 1 12 13
1993 36 1 37
1994 170 + 170
1995 419 1 420
1996 77 2 79
1997 17 1 18
1998 - 3 3
1999 4 1 5
2000 155 0 155
2001 1 4 5
2002 1 0 1
2003 2 3 5
2004   7 7
2005 3 10 13
2006 0 0 0
2007 0 1 1


Table 9.4.14.1. Orange roughy. ICES estimates of catch by country and area (continued). Orange roughy catch in Subarea VI.
Year Faroes France E & W Scotland Ireland Spain Total
1988 - - - - - - 0
1989 - 5 - - - - 5
1990 - 15 - - - - 15
1991 - 3,502 - - - - 3502
1992 - 1,422 - - - - 1422
1993 - 429 - - - - 429
1994 - 179 - - - - 179
1995 40 74 - 2 - - 116
1996 0 116 - 0 - - 116
1997 29 116 1 - - - 146
1998 - 100 - - - 2 102
1999 - 175 - - 0 1 176
2000 - 136 - - 2 - 138
2001 - 159 - 11 110 - 280
2002 n/a 152 - 41 130 - 323
2003 - 79 - - 2 - 81
2004 - 54 - - 2 - 56
2005 - 41 - - 6 - 47
2006   32     1   33
2007*   10         10
* Preliminary.


Table 9.4.14.1. Orange roughy. ICES estimates of catch by country and area (continued). Orange roughy catch in Subarea VII.
Year France Spain E & W Ireland Scotland Faroes Total
1988 - - - - - - 0
1989 3 - - - - - 3
1990 2 - - - - - 2
1991 1,406 - - - - - 1406
1992 3,101 - - - - - 3101
1993 1,668 - - - - - 1668
1994 1,722 - - - - - 1722
1995 831 - - - - - 831
1996 879 - - - - - 879
1997 893 - - - - - 893
1998 963 6 - - - - 969
1999 1,157 4 - - - - 1161
2000 1,019 - - 1   - 1020
2001 1022 - 1 2367 22 - 3412
2002 300   14 5114 33 4 5465
2003 369     172     541
2004 279     188     467
2005 165     90     255
2006 451     37     489
2007* 136     28     164
*Preliminary.


Table 9.4.14.1. Orange roughy. ICES estimates of catch by country and area (continued). Orange roughy in Subarea VIII.
Year France Spain VIII & IX E & W Total
1988 - - - 0
1989 0 - - 0
1990 0 - - 0
1991 0 - - 0
1992 83 - - 83
1993 68 - - 68
1994 31 - - 31
1995 7 - - 7
1996 22 - - 22
1997 1 22 - 23
1998 4 10 - 14
1999 33 6 - 39
2000 47 - 5 52
2001 20 - - 20
2002 20 - - 20
2003 31       31
2004 43       43
2005 29       29
2006 43       43
2007* 1       1
Preliminary.


9.4.14.1. Orange roughy. ICES estimates of catch by country and area (continued). Orange roughy in Subarea IX.
Year Spain Total
1988 - 0
1989 - 0
1990 - 0
1991 - 0
1992 - 0
1993 - 0
1994 - 0
1995 - 0
1996 - 0
1997 1 1
1998 1 1
1999 1 1
2000 0 0
2001 0 0
2002 0 0
2003 0 0
2004 0 0
2005 0 0
2006 0 0
2007* 0 0

*Preliminary.

Continued.



Table 9.4.14.1. Orange roughy. ICES estimates of catch by country and area (continued). Orange roughy in Subarea X.
Year Faroes France Norway E & W Portugal Ireland Total
1988 -   - - -   0
1989 - - - - -   0
1990 - - - - -   0
1991 - - - - -   0
1992 - - - - -   0
1993 - - 1 - -   1
1994 - - - - -   0
1995 - - - - -   0
1996 470 1 - - -   471
1997 6 - - - -   6
1998 177 - - - -   177
1999 - 10 - - -   10
2000 - 3 - 28 157   188
2001 84 - - 28 343   455
2002 30 - - - -   30
2003   1         1
2004 384         19 403
2005 128 2         130
2006 8           8
2007* 0           0
*Preliminary.


Table 9.4.14.1. Orange roughy. ICES estimates of catch by country and area (continued). Orange roughy in Subarea XII.
Year Faroes France Iceland Spain E & W Ireland New Zealand Russia Total
1988 - - - - -     - 0
1989 - 0 - - -     - 0
1990 - 0 - - -     - 0
1991 - 0 - - -     - 0
1992 - 8 - - -     - 8
1993 24 8 - - -     - 32
1994 89 4 - - -     - 93
1995 580 96 - - -     - 676
1996 779 36 3 - -     - 818
1997 802 6 - - -     - 808
1998 570 59 - - -     - 629
1999 345 43 - 43 -     - 431
2000 224 21 - - 2     12 259
2001 345 14 - - 2   450 - 811
2002 + 6 - - -   0 - 6
2003   64       136 0 - 200
2004 176 131         0   307
2005 158 36         0   193
2006 81 15             96
2007* 20               20
*Preliminary.


Table 9.4.14.2. ICES estimates of international catch of orange roughy.
Year IV Va Vb VI VII VIII IX X XII All areas
1988   0 0 0 0 0 0 0 0 0
1989   0 0 5 3 0 0 0 0 8
1990   0 22 15 2 0 0 0 0 39
1991   65 48 3502 1406 0 0 0 0 5021
1992   382 13 1422 3101 83 0 0 8 5009
1993   717 37 429 1668 68 0 1 32 2952
1994   158 170 179 1722 31 0 0 93 2353
1995   64 420 116 831 7 0 0 676 2114
1996   40 79 116 879 22 0 471 818 2425
1997   79 18 146 893 23 1 6 808 1974
1998   28 3 102 969 14 1 177 629 1923
1999   14 5 176 1161 39 1 10 431 1837
2000   68 155 138 1020 52 0 188 259 1880
2001   19 5 280 3412 20 0 28 811 4575
2002   10 1 323 5465 20 0 22 6 5847
2003   + 5 81 541 31 0 1 200 859
2004   28 7 56 467 43 0 403 307 1311
2005   9 13 45 255 29 0 130 193 674
2006   2 1 33 488 43 0 8 96 670
2007* 14 0 1 10 164 1 0 0 20 210
* preliminary.

Reference Point
 

No reference points have been defined for this stock.
Scientific Advice

Single-stock exploitation boundaries

Due to its very low productivity, orange roughy can only sustain very low rates of exploitation. Currently, it is not possible to manage a sustainable fishery for this species. ICES recommends no directed fisheries for this species. Bycatches in mixed fisheries should be as low as possible.
Management
Management unit: Yes

Management Objectives

There are no management objectives for this stock.
Management Advice

Management considerations

Orange roughy form discrete aggregations which are susceptible to sequential depletion. Assessment and management should be at the level of individual aggregations. At present, the spatial resolution of landings data is not sufficient to allow this.

Orange roughy are known to reach very old ages (highest estimated age of an individual is 187 years), and experience in other areas (e.g. South Pacific) has shown that this species is especially vulnerable to exploitation. Newly discovered aggregations are often overexploited before enough information is available to provide timely advice on management (Figure 9.4.14.1).

The closed areas aimed for the protection of orange roughy in Subareas VI and VII do not cover entire ICES rectangles. In order to monitor the efficacy of the closed areas their boundaries should be reviewed so that they cover entire ICES rectangles.
Biological State and Trend
Exploitation rate: Undefined
Abundance level: Undefined

Orange roughy form discrete aggregations which are susceptible to sequential depletion. It is not known if individual aggregations are reproductively distinct.

Orange roughy catches in Subarea VI increased rapidly and subsequently dropped (Figure 9.4.14.1). Orange roughy cpue in Subarea VI (Figure 9.4.14.2) has shown a strong declining trend since early 1990s. It is presumed that the aggregations were fished out. Landings have declined to low levels in each management area (VI, VII, and other) (Figure 9.4.14.1).

Orange roughy fisheries in Subarea VII have exhibited a similar pattern to that in VI (Figure 9.4.14.1). High catches have not been sustained by individual fleets and have dropped to low levels, suggesting sequential depletion. Orange roughy cpue in Subarea VII (Figure 9.4.14.3) has shown a strong declining trend since the early 1990s. It is unclear if there are unfished aggregations remaining in Subarea VII.
Source of information
 
ICES. 2009. Report of the ICES Advisory Committee, 2009. ICES Advice, 2009.
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