SUMMARY

SUMMARY

IDENTIFICATION

SCIENTIFIC NAME(s)

Gadus morhua

SPECIES NAME(s)

Atlantic cod

COMMON NAMES

Faroe plateau cod

Both genetic and tagging studies suggest the cod on the Faroe Plateau (Division Vb1) as a distinct biological stock from cod on the Faroe Bank(Division Vb2) and on Icelandic waters (Division Va) (ICES, 2013b).


ANALYSIS

Strengths

Data for stock assessments is of good quality and an analytical assessment is performed. Several area and season and area closures are in place to protect young cod and mature stock during spawning time.

Weaknesses

Spawning stock biomass remains at the lowest levels in the fishery’s history. Even with the closure fishery the stock is expected to remain around Blim in the short term. Fishing mortality dropped but remains higher than F[~MSY] under the effort management system.

Options

Reduce fishery effort and implement a recovery plan. Review effort management system in terms of environmental effects, price differential on fishing mortality. Increase age sampling.

FISHSOURCE SCORES

Management Quality:

Management Strategy:

< 6

Managers Compliance:

< 6

Fishers Compliance:

< 6

Stock Health:

Current
Health:

6.3

Future Health:

6.9


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.

ASSESSMENT UNIT MANAGEMENT UNIT FLAG COUNTRY FISHING GEAR
Faroe Plateau Faroe Islands, Division Vb1 Faroe Islands Bottom trawls
Longlines

Analysis

OVERVIEW

Strengths

Data for stock assessments is of good quality and an analytical assessment is performed. Several area and season and area closures are in place to protect young cod and mature stock during spawning time.

Weaknesses

Spawning stock biomass remains at the lowest levels in the fishery’s history. Even with the closure fishery the stock is expected to remain around Blim in the short term. Fishing mortality dropped but remains higher than F[~MSY] under the effort management system.

Options

Reduce fishery effort and implement a recovery plan. Review effort management system in terms of environmental effects, price differential on fishing mortality. Increase age sampling.

1.STOCK STATUS

STOCK ASSESSMENT

Data from two surveys and commercial catch-at-age data are used with an analytical XSA model and age-disaggregated indices in the assessment of the stock (ICES, 2008a, 2009). Two commercial CPUE series are available but have not been used as they are dependent on environmental, price differential or other factors, but they show a similar overall tendency to the survey series (ICES, 2008b).

The sampling is thought to be adequate although a larger number of samples could be aged but data input to the model is of high quality, as is the assessment itself (ICES, 2008b).

SCIENTIFIC ADVICE

According to ICES, the current strategy of harvesting 33% of the exploitable stock of cod translates into a fishing mortality of 0.45, above the precautionary fishing mortality (0.35), which is inconsistent with the precautionary approach (ICES, 2009, 2013a). Given the poor state of the stock and weak recruitment, ICES advice has been to reduce fishing mortality (F) to allow stock rebuilding. For 2014, ICES has recommended a decrease in fishing effort so that F will be less than 0.16, which corresponds to a 69% of the current fishing mortality. Additionally, a recovery plan will be necessary, aimed at rebuilding the stock to above MSY Btrigger as quickly as possible (ICES, 2009, 2013a,b). According to ICES, the management plan should incorporate strategies for a stepwise reduction of F to Fmsy by 2015, and also an harvest control rule if the SSB declines below MSY Btrigger (ICES, 2013a).

Reference Points

The following reference points have been defined for the stock, having remained unchanged since 2011 (ICES, 2013a):

 TypeValue
Precautionary approachBlim21,000 t
 Bpa40,000 t
 Flim0.68
 Fpa0.35
MSY approachMSY Btrigger40,000 t
 Bpa40,000 t
 Fmsy0.32

There is no specific fishing mortality (F) target reference point, but according to ICES the effort regulation scheme in place assumes a annual harvest of around 33% of the exploitable stock, which renders into an average F of 0.45.

The basis for the value of Blim was the lowest observed SSB level from which the stock had recovered at the time of the definition of the reference points, in 1998. Bpa= Blime1.645σ and Flim= Fpae1.645σ, assuming an σ of about 0.40 to account for the large uncertainties in the assessment. Fpa was set close to Fmax (0.34) and Fmed (0.38) from the 1998 assessment. The target fishing mortality, Fy, is (ICES, 2008a). Preliminary MSY reference points were also adopted in 2011 (ICES, 2013a,b).

2.MANAGEMENT QUALITY

3.ENVIRONMENT AND BIODIVERSITY

FishSource Scores

Last updated on 18 January 2017

MANAGEMENT QUALITY

As calculated for 2013 data.

The score is < 6.

The current management system does not require differentiation of catches from the Faroe Plateau and Faroe Bank stocks, as catches are not TAC-limited (ICES, 2013b). Instead, an effort regulation scheme is in place, but it is considered by ICES as “to be inconsistent with the PA and the MSY approaches” as it translates into fishing mortalities higher FMSY or FPA (ICES, 2013a,b).

As calculated for 2013 data.

The score is < 6.

Given the implementation of an effort management system in 1996, TACs have no longer been applied and thus the levels advised by ICES have not been taken into account in management. The fishing effort regulation system translates into an average F of 0.45, well above FMSY (=0.32) and what has been recommended by ICES (ICES, 2013a).

As calculated for 2013 data.

The score is < 6.

A fishing effort regulatory system is in place in the Faroe Islands since 1996. There is no reported evidence of fisher’s non-compliance with the regulations in place.

STOCK HEALTH:

As calculated for 2013 data.

The score is 6.3.

This measures the SSB as a percentage of the MSY Btrigger.

The SSB is 23.7 ('000 t). The MSY Btrigger is 40.0 ('000 t) .

The underlying SSB/MSY Btrigger for this index is 59.4%.

As calculated for 2012 data.

The score is 6.9.

This measures the F as a percentage of the Fmsy.

The F is 0.407 (age-averaged). The Fmsy is 0.320 .

The underlying F/Fmsy for this index is 127%.

To see data for biomass, please view this site on a desktop.
To see data for catch and tac, please view this site on a desktop.
To see data for fishing mortality, please view this site on a desktop.
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

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Fishery Improvement Projects (FIPs)

No related FIPs

Certifications

Marine Stewardship Council (MSC)

No related MSC certifications

Sources

References

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    Atlantic cod - Faroe Plateau, Faroe Islands, Division Vb1, Faroe Islands, Longlines

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