Last updated on 27 February 2016

SUMMARY

SUMMARY

IDENTIFICATION

SCIENTIFIC NAME(s)

Clupea harengus

SPECIES NAME(s)

Atlantic herring

COMMON NAMES

4VWX Herring

Atlantic herring in this region are treated as a stock complex with a number of somewhat discreet spawning sub units contained within it. Because theses sub units mix at times other than spawning, and because the site fidelity of spawning cannot be determined conclusively, they are treated as an aggregated unit. Within this unit are 4 main substocks/management units

1. SW Nova Scotia / Bay of Fundy spawning component
2. Offshore Scotian Shelf banks spawning component
3. Coastal (South Shore, Eastern Shore and Cape Breton) Nova Scotia spawning component
4. SW New Brunswick migrant juveniles

Of these units the SW NB unit is thought to be composed of only US migratory juveniles, is not managed other than sampling and monitoring of landings, and is included in the GOM/GB stock complex as assessed by the US.


ANALYSIS

Strengths

Catch data is reliable and misreporting by area is not an issue. Meetings are held with all stakeholders during the assessment process.

Weaknesses

Biomass is measured using acoustic surveys which are highly variable. There are no reference points, analytical assessment or clear goals for the complex. There is the potential for over exploitation of individual components.

FISHSOURCE SCORES

Management Quality:

Management Strategy:

≥ 6

Managers Compliance:

≥ 6

Fishers Compliance:

6.8

Stock Health:

Current
Health:

≥ 6

Future Health:

≥ 6


RECOMMENDATIONS

RETAILERS & SUPPLY CHAIN
  • Monitor the progress in closing out conditions placed upon the MSC certification of the fishery and if agreed timelines are met. Offer assistance in closing conditions where possible.

FIPS

No related FIPs

CERTIFICATIONS

  • Canadian 4VWX Purse Seine herring fishery:

    MSC Certified

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
Nova Scotia and Bay of Fundy Canada 4VWX Canada Gillnets and entangling nets
Midwater trawls
Seine nets

Analysis

OVERVIEW

Last updated on 20 December 2013

Strengths

Catch data is reliable and misreporting by area is not an issue. Meetings are held with all stakeholders during the assessment process.

Weaknesses

Biomass is measured using acoustic surveys which are highly variable. There are no reference points, analytical assessment or clear goals for the complex. There is the potential for over exploitation of individual components.

RECOMMENDATIONS
Canada 4VWX
Canada
Seine nets

Last updated on 13 December 2018

Recommendations to Retailers & Supply Chain
  • Monitor the progress in closing out conditions placed upon the MSC certification of the fishery and if agreed timelines are met. Offer assistance in closing conditions where possible.

1.STOCK STATUS

STOCK ASSESSMENT

Last updated on 3 November 2011

Currently, stock is assessed using acoustic surveys to determine biomass of individual spawning components.An exploitation is then set (~20%) and the fishery is then halted when that catch is reached.Acoustic measurements, while good indicators, are more variable then the underlying stock dynamics.

SCIENTIFIC ADVICE

Last updated on 26 November 2009

Advice is offered in general terms and catch levels are not explicitly advised upon. Uncertainty is not explicitly accounted for.

Reference Points

Last updated on 26 Nov 2009

No biomass or fishing mortality reference points have been defined for any of the components of the stock.

CURRENT STATUS

Last updated on 20 December 2013

Biomass indices from acoustic surveys indicate some rebuilding from previously low levels a few years ago. Some components, however, are doing poorly relative to the complex average. Exploitation seems in-line with rebuilding goals.

Trends

Last updated on 20 Dec 2013

Generally biomass and exploitation are right on the historical average complex wide. However some components are doing better than others.

2.MANAGEMENT QUALITY

MANAGEMENT

Last updated on 26 November 2009

Most of the components in this complex are quota controlled.However the foundations for these quotas are not analytically derived and there doesn’t appear to be overall stock abundance goals

The Integrated Fisheries Management Plan attempts to distribute the fishing effort among spawning areas within a component to reduce the risk of extirpation of these smaller units.

Recovery Plans

Last updated on 26 Nov 2009

No explicit recovery plan is in place but it is advised that cautious harvesting strategies be adopted to promote rebuilding, and that catches be maintained at current levels due to uncertainties in estimating the state of the fishery (DFO, 2009).

COMPLIANCE

Last updated on 20 December 2013

Herring landings have closely followed TACs in recent years, with most of the quota being taken every year since 2002. In some years overages have occurred when quotas were not set on underutilized component, but fishing was conducted, such as the off shore NS area.

3.ENVIRONMENT AND BIODIVERSITY

BYCATCH
ETP Species

Last updated on 26 November 2009

Incidental catches of harbour porpoises occur in herring weirs but mortality has decreased since a cooperative programme between fishers and biologists was initiated in 1993. Annual known mortality between 2000 and 2004 was 4% of an average incidental catch of 93 porpoises (NEFSC, 2007). The Northwest Atlantic distribution of harbour porpoise, of which the Gulf of Maine/Bay of Fundy population is part, is classified by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) as being of special concern (COSEWIC, 2009).

During a 1991-2006 observer programme, whales and other marine mammals were occasionally captured but released live and unharmed (DFO, 2007). Captures of tuna, porpoise and others are also reported in the weir fishery (DFO, 2007).

Other Species

Last updated on 26 November 2009

Bycatch in herring fisheries is low, estimated at 0.5% of total catch, but around 30% of observed sets catch low numbers of other species (DFO, 2007). The dominant species by weight are spiny dogfish and mackerel, similarly to previous studies. In terms of prevalence by number of sets, spiny dogfish and mackerel are also the most prevalent, along with cod and silver hake (DFO, 2007).Purse seine bycatches include small amounts of mackerel, squid and dogfish, according to observer reports (DFO, 2009a).

HABITAT

Last updated on 26 November 2009

Purse seines are by far the most important gear in use in the fishery and their impact on the benthic habitat is minimal, although contact with the sea floor does occasionally occur (FRCC, 2009). Of the secondary gear, weir (traps) leave a localized footprint in their immediate area and gillnets’ major impact is the “ghost fishing” of lost nets (FRCC, 2009).

Marine Reserves

Last updated on 26 Nov 2009

Area and season closures are in use as management measures in the fishery, as are fishing restrictions on areas where there is mixing among the components (DFO 2009a; 2009b).

Several marine protected areas are declared in the region, ranging from Migratory Bird Sanctuaries to National Wildlife Areas and Wildlife Management Areas but only one, the Gully, is known to restrict fishing in a part of its distribution (Wood, 2007).

FishSource Scores

MANAGEMENT QUALITY

As calculated for 2011 data.

The score is ≥ 6.

An Integrated 2003-2010 management plan is place for the stock. Despite the drop in the 2005-2010 SSB average, compared to 2001-2004, the harvest strategy is considered appropriate. No reference points for the stock (DFO, 2011).

As calculated for 2011 data.

The score is ≥ 6.

Managers are assumed to generally comply with scientific advice.

As calculated for 2010 data.

The score is 6.8.

This measures the Catch as a percentage of the Set TAC.

The Catch is 60.0 ('000 t). The Set TAC is 50.0 ('000 t) .

The underlying Catch/Set TAC for this index is 120%.

STOCK HEALTH:

As calculated for 2011 data.

The score is ≥ 6.

Biomass is highly variable given that it is measured using acoustic surveys. However biomass overall appears to be near the long term average for all of the subunits combined

As calculated for 2011 data.

The score is ≥ 6.

Over the sub component exploitation is near the historical average.

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.
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.
DATA NOTES
Notes: 1) No analytical assessment. 2) SSB as calculated by acoustic survey estimates. 3) SSB is combined across all surveyed sub components. The off-shore NS area is not regularly surveyed and is not reflected in the data.
 

Download Source Data

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Fishery Improvement Projects (FIPs)

No related FIPs

Certifications

Marine Stewardship Council (MSC)

SELECT MSC

NAME

Canadian 4VWX Purse Seine herring fishery

STATUS

MSC Certified on 29 November 2016

SCORES

Principle Level Scores:

Principle Score
Principle 1 – Target Species 82.1
Principle 2 - Ecosystem 89.7
Principle 3 – Management System 92.3

Certification Type: Silver

Sources

Credits
  1. COSEWIC, 2009. Wildlife Species Search: database of wildlife species assessed by COSEWIC [accessed on 30 September 2009]. http://www.cosewic.gc.ca/eng/sct1/searchform_e.cfm
  2. DFO, 2007. Proceedings of the Maritime Provinces Regional Advisory Process on the Assessment Framework for 4VWX Herring Stocks, 31 October – 1 November 2006, 9 – 11 January 2007. Canadian Science Advisory Secretariat Proceedings Series 2007/002. Fisheries and Oceans Canada. http://www.dfo-mpo.gc.ca/csas/Csas/Proceedings/2007/PRO2007_002_E.pdf
  3. DFO, 2009a. Assessment of 4VWX Herring. Canadian Science Advisory Secretariat Science Advisory Report 2009/035. Fisheries and Oceans Canada.http://www.dfo-mpo.gc.ca/CSAS/Csas/Publications/SAR-AS/2009/2009_035_E.pdf
  4. DFO, 2009b. Herring – 4WX Southwest Nova Scotia/Bay of Fundy Spawning Component. Fisheries and Oceans Canada. http://www.dfo-mpo.gc.ca/decisions/fm-2009-gp/herring-hareng-0723-eng.htm
  5. DFO, 2010. 2010 Assessment of 4VWX Herring. DFO Canadian Science Advisory Secretariat Science Advisory Report 2010/038.http://www.dfo-mpo.gc.ca/CSAS/Csas/publications/sar-as/2010/2010_038_e.pdf
  6. DFO, 2011. Assessment of 4VWX Herring. DFO Canadian Science Advisory Secretariat Science Advisory Report 2011/046. 16 pp.http://www.dfo-mpo.gc.ca/csas-sccs/Publications/SAR-AS/2011/2011_046-eng.pdf
  7. DFO, 2012. Assessment of 4VWX Herring. DFO Canadian Science Advisory Secretariat Science Advisory Report 2013-045http://www.dfo-mpo.gc.ca/csas-sccs/Publications/SAR-AS/2013/2013_045-eng.pdf
  8. FRCC, 2009. Fishing into the future: the herring fishery in eastern Canada. A report to the Minister of Fisheries and Oceans. Fisheries Resource Conservation Council.http://www.frcc-ccrh.ca/2009/herring_2009.pdf
  9. Joseph, J., 2009. Herring Assessment Report. Bumble Bee Foods. May 2009. 137 pp.http://www.bumblebee.com/files/Herring%20Assessment%20Report.pdf
  10. NEFSC, 2007. Harbor porpoise (Phocoena phocoena): Gulf of Maine/Bay of Fundy Stock.http://www.nefsc.noaa.gov/nefsc/publications/tm/tm201/100-113.pdf
  11. Power, MJ. Fife, F J. Knox, D. Melvin, G D. 2010. 2009 Evaluation of 4VWX Herring. Canadian Science Advisory Secretariat. Research Document 2010/111.http://www.dfo-mpo.gc.ca/CSAS/Csas/publications/resdocs-docrech/2010/2010_111_e.pdf
  12. Power, M.J., Melvin, G.D. and Clay, A., 2010. Summary of 2009 Herring Acoustic Surveys in NAFO Divisions 4VWX. Canadian Science Advisory Secretariat. Research Document 2010/098. 97 pp.http://www.dfo-mpo.gc.ca/CSAS/Csas/publications/resdocs-docrech/2010/2010_098_e.pdf
  13. Wood LJ, 2007. MPA Global: A database of the world's marine protected areas. Sea Around Us Project, UNEP-WCMC & WWF [accessed on 30 September 2009].http://www.mpaglobal.org
References

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    Atlantic herring - Nova Scotia and Bay of Fundy, Canada 4VWX, Canada, Seine nets

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