Last updated on 28 December 2017

SUMMARY

SUMMARY

IDENTIFICATION

SCIENTIFIC NAME(s)

Zeus faber

SPECIES NAME(s)

John dory

Stock structure of John dory in the Northeast Atlantic remains poorly understood. Commercial fisheries data reveals two main areas of exploitation: the Celtic sea, Western Channel and Northern Bay of Biscay (Divisions VIIe-j and VIII a,b) and the Western Iberian waters (Division IXa) (ICES, 2010).


ANALYSIS

Strengths

The species appears to be in a healthy state from survey information and unlikely to be at risk of overfishing in the main fishing areas.

The species appears to be in a healthy state from survey information and unlikely to be at risk of overfishing in the main fishing areas. Furthermore, it is considered to be an underutilized species in UK waters.

Weaknesses

The stock structure is unknown and no analytical assessment is available due to the lack of catch data. There are no management measures in place.

The stock structure is unknown and no analytical assessment is available due to the lack of catch data. There are no management measures in place.

FISHSOURCE SCORES

Management Quality:

Management Strategy:

< 6

Managers Compliance:

< 6

Fishers Compliance:

NOT YET SCORED

Stock Health:

Current
Health:

≥ 6

Future Health:

≥ 6


RECOMMENDATIONS

CATCHERS & REGULATORS

1. Start a fishery improvement project to address sustainability issues in this fishery. For advice on starting a FIP, see SFP’s Seafood Industry Guide to FIPs at http://www.sustainablefish.org/publications/2014/04/30/the-seafood-industry-guide-to-fips.
2. Communicate to fishery managers that there are sustainability issues in this fishery that may be affecting the sale of products, and request that they comprehensively evaluate and address such issues.

RETAILERS & SUPPLY CHAIN

1. Encourage your supply chain to start a fishery improvement project. For advice on starting a FIP see SFP’s Seafood Industry Guide to FIPs at http://www.sustainablefish.org/publications/2014/04/30/the-seafood-industry-guide-to-fips.
2. Work with other suppliers and buyers on a pre-competitive basis to start a supplier roundtable to review improvement needs in this and other similar fisheries, catalyze fishery improvement projects, and monitor progress in improvement efforts.


FIPS

No related FIPs

CERTIFICATIONS

No related MSC fisheries

Fisheries

Within FishSource, the term "fishery" is used to indicate each unique combination of a flag country with a fishing gear, operating within a particular management unit, upon a resource. That resource may have a known biological stock structure and/or may be assessed at another level for practical or jurisdictional reasons. A fishery is the finest scale of resolution captured in FishSource profiles, as it is generally the scale at which sustainability can most fairly and practically be evaluated.

MANAGEMENT UNIT FLAG COUNTRY FISHING GEAR
Portugal/EU Portugal Bottom-set longlines
Gillnets and entangling nets
United Kingdom/EU United Kingdom Beam trawls
Gillnets and entangling nets

Analysis

OVERVIEW

Last updated on 11 November 2013

Strengths

The species appears to be in a healthy state from survey information and unlikely to be at risk of overfishing in the main fishing areas.

United Kingdom/EU
United Kingdom
Beam trawls

Last updated on 4 September 2012

The species appears to be in a healthy state from survey information and unlikely to be at risk of overfishing in the main fishing areas. Furthermore, it is considered to be an underutilized species in UK waters.

Weaknesses

The stock structure is unknown and no analytical assessment is available due to the lack of catch data. There are no management measures in place.

United Kingdom/EU
United Kingdom
Beam trawls

Last updated on 4 September 2012

The stock structure is unknown and no analytical assessment is available due to the lack of catch data. There are no management measures in place.

RECOMMENDATIONS

Last updated on 28 June 2016

Improvement Recommendations to Catchers & Regulators

1. Start a fishery improvement project to address sustainability issues in this fishery. For advice on starting a FIP, see SFP’s Seafood Industry Guide to FIPs at http://www.sustainablefish.org/publications/2014/04/30/the-seafood-industry-guide-to-fips.
2. Communicate to fishery managers that there are sustainability issues in this fishery that may be affecting the sale of products, and request that they comprehensively evaluate and address such issues.

Recommendations to Retailers & Supply Chain

1. Encourage your supply chain to start a fishery improvement project. For advice on starting a FIP see SFP’s Seafood Industry Guide to FIPs at http://www.sustainablefish.org/publications/2014/04/30/the-seafood-industry-guide-to-fips.
2. Work with other suppliers and buyers on a pre-competitive basis to start a supplier roundtable to review improvement needs in this and other similar fisheries, catalyze fishery improvement projects, and monitor progress in improvement efforts.

1.STOCK STATUS

STOCK ASSESSMENT

Last updated on 11 November 2013

Data from four surveys is available on John dory in the North Sea, Celtic Sea, Northern Bay of Biscay and Western Iberian waters, providing biomass, abundance and recruitment indices. There is little sampling from fisheries and age-reading is proving to be difficult for the species. Carrying out an analytical assessment is not yet possible, and will not be possible on length data until at least five years of data are collected (ICES, 2010).

SCIENTIFIC ADVICE

Last updated on 11 November 2013

No scientific advice has yet been produced for this species.

Reference Points

Last updated on 11 Nov 2013

No reference points are in place.

CURRENT STATUS

Last updated on 11 November 2013

The most recent information located on survey biomass and abundance indices referred to an increase from the 1990s up to 2007-2008 and then a drop in 2009. Catch-per-unit-effort (CPUE) series show recent increases in the Celtic Sea, Bay of Biscay and Western Iberian fishing areas due to strong recruitment. A similar but more moderate increase was recorded for the North Sea area (ICES, 2012).

Trends

Last updated on 11 Nov 2013

Landings were around 850 tons between 1978 and 1985, before an increase occurred, peaking in 2003-2004 at 4,000 tons. Strong year classes were recorded for 1997, 2011 and 2004 and a particularly strong class in 2007 (ICES, 2010).

2.MANAGEMENT QUALITY

MANAGEMENT

Last updated on 11 November 2013

No management measures are in place, although as the species is mainly caught in mixed fisheries, other measures will indirectly have an effort (Seafish, 2012).

Recovery Plans

Last updated on 11 Nov 2013

None required.

COMPLIANCE

Last updated on 11 November 2013

There are no compliance issues as no management controls are in place.

3.ENVIRONMENT AND BIODIVERSITY

HABITAT

Last updated on 11 November 2013

John dory is usually located over muddy and soft sediment areas but close to rocky outcrops (ICES, 2010).

FishSource Scores

MANAGEMENT QUALITY

As calculated for 2008 data.

The score is < 6.

There is no management strategy and no input or output limitations. No reference points are defined.

As calculated for 2008 data.

The score is < 6.

No analytical stock assessment is available and no scientific advice is produced. No input or output controls are in place in the fishery.

STOCK HEALTH:

As calculated for 2008 data.

The score is ≥ 6.

Surveys show favorable abundance, biomass and CPUE trends, as well as recent strong recruitment (ICES, 2010).

As calculated for 2008 data.

The score is ≥ 6.

No stock assessment is conducted and fishing mortality estimates are not available but the risk of overfishing is determined to be low (Seafish, 2012).

No data available for biomass
No data available for biomass
To see data for catch and tac, please view this site on a desktop.
No data available for fishing mortality
No data available for fishing mortality
No data available for recruitment
No data available for recruitment
To see data for management quality, please view this site on a desktop.
To see data for stock status, please view this site on a desktop.

Download Source Data

Registered users can download the original data file for calculating the scores after logging in. If you wish, you can Register now.

Fishery Improvement Projects (FIPs)

No related FIPs

Certifications

Marine Stewardship Council (MSC)

No related MSC certifications

Sources

Credits
  1. CEFAS, 2011. Identifying underutilised species - Tom Catchpole, Cefas, January 2011http://www.cefas.defra.gov.uk/media/520068/underutilised%20species.pdf
  2. CEFAS, 2012. Fisheries information - Under-utilised species.http://www.cefas.defra.gov.uk/our-science/fisheries-information/under-utilised-species.aspx
  3. ICES, 2010. Report of the Working Group on Assessment of New MoU Species (WGNEW), 11 - 15 October 2010, ICES HQ, Denmark. ICES CM 2010/ACOM: 21. 185 pp.http://www.ices.dk/reports/ACOM/2010/WGNEW/WGNEW%202010%20.pdf
  4. Seafish, 2012. John Dory Species Guide June 2012 2nd ed.http://www.seafish.org/media/publications/Seafishspeciesguide_johndory_201206.pdf
References

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    John dory - NE Atlantic, United Kingdom/EU, United Kingdom, Beam trawls

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