Summary

IDENTIFICATION

SCIENTIFIC NAME

Microstomus pacificus

SPECIES NAME(S)

Dover sole

COMMON NAMES

Pacific Dover sole, slime sole, slippery sole

Uncertainty remains around the stock structure of Dover sole but it is currently assessed as a single unit in the waters off Oregon, Washington and California.

This fishery was certified by the Marine Stewardship Council system in June 2014. Click here to link to the MSC fishery page and to learn more about the MSC fishery certification unit.


ANALYSIS

Strengths

Weaknesses

SCORES

Management Quality:

Management Strategy:

≥ 6

Managers Compliance:

10

Fishers Compliance:

10

Stock Health:

Current
Health:

10

Future Health:

≥ 6


RECOMMENDATIONS

CATCHERS & REGULATORS

1. Work actively to address and close out conditions placed upon the certification of the fishery in the agreed timeframe.
2. Report achievements publicly to share progress with buyers.

RETAILERS & SUPPLY CHAIN

1. Monitor the progress in closing out conditions placed upon the certification of the fishery and if agreed timelines are met.
2. Express your support to help meet conditions that may be at a government/regulatory level (where applicable). Please contact the relevant SFP Sector Group or Supplier Roundtable for more specific information.


FIPS

No related FIPs

CERTIFICATIONS

  • US West Coast limited entry groundfish trawl:

    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
US Pacific Coast US Pacific United States Single boat bottom otter trawls

Analysis

OVERVIEW

Last updated on 28 February 2011

Strengths
US Pacific
United States
Single boat bottom otter trawls

Last updated on 28 February 2011

Weaknesses
US Pacific
United States
Single boat bottom otter trawls

Last updated on 28 February 2011

RECOMMENDATIONS

Last updated on 28 June 2016

Improvement Recommendations to Catchers & Regulators

1. Work actively to address and close out conditions placed upon the certification of the fishery in the agreed timeframe.
2. Report achievements publicly to share progress with buyers.

Recommendations to Retailers & Supply Chain

1. Monitor the progress in closing out conditions placed upon the certification of the fishery and if agreed timelines are met.
2. Express your support to help meet conditions that may be at a government/regulatory level (where applicable). Please contact the relevant SFP Sector Group or Supplier Roundtable for more specific information.

1.STOCK STATUS

Stock Assessment
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

A recent full assessment off the US West Coast was conducted in 2005 that applies to the Dover sole (Microstomus pacificus) that reside in the waters off California, Oregon and Washington in the region bounded by the U.S. borders with Canada and Mexico. This assessment used the new version of the Stock Synthesis program (SS2 version 1.19) and separated the length and age composition data into two fisheries: a northern fishery operating in the US Vancouver and Columbia INPFC regions and a southern fishery operating in the Eureka, Monterey and Conception regions.

Scientific Advice
US Pacific
United States
Single boat bottom otter trawls

Last updated on 4 May 2010

Alternative management actions were defined in terms of three catch scenarios: 1) a low catch series based on the recent average catches; 2) a high catch series based on the projected F40% ABC values derived from the base model; and 3) an intermediate catch series based on twice the recent average catches. The current assessment estimates that the Dover sole stock can support a Maximum Sustainable Yield (MSY) of about 16,500 tonnes per year, which is considerably larger than the current OY and coastwide catches in any recent years. PFMC established the Acceptable Biological Catch limits to 8,510 tonnes in 2004 (Sampson, 2005).

Reference Points
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

In June 2000 the Pacific Fishery Management Council (PFMC) endorsed the recommendation of the West Coast Groundfish Harvest Policy Workshop that F40% be used as the default target rate of fishing mortality for Council-managed flatfish species. Unexploited Dover sole spawning biomass was estimated to be 299,054 mt. MSY, estimated in the 2005 assessment model 16,505 mt.

Current Status
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

The final base model estimated the unexploited spawning stock biomass to be slightly less than 300,000 mt and spawning biomass at the start of 2005 was estimated to be about 189,000 mt, equivalent to 63% of the unexploited level. Therefore, the stock of Dover sole was not considered to be overfished.

Trends
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

Annual landings from U.S. waters averaged 6,708 mt during the 1960s, 12,792 mt during the 1970s, 18,383 mt during the 1980s, 12,350 mt during the 1990s, and 7,213 mt since 2000. Discarding of small, unmarketable fish is an important, but poorly documented feature of the fishery.

2.MANAGEMENT QUALITY

Managers' Decisions
US Pacific
United States
Single boat bottom otter trawls

Last updated on 4 April 2009

The Council have implemented trip limits specific for Dover sole for portions of 1994 and 1996 and at the start of 1997 and years thereafter.In 2004 regulation, in the northern area the limits for Dover sole taken with large-footrope trawls were 67,500 pounds bimonthly for January-April, 32,000 pounds bimonthly for May-June, 31,000 pounds bimonthly for July-August, and 40,000 pounds bimonthly for September-December. The limits for Dover sole taken with small-footrope trawls were 10,000 pounds bimonthly for January-April, 27,000 pounds bimonthly for May-August, and 40,000 pounds bimonthly for September-December. In the southern area the limits for Dover sole were 39,000 pounds bimonthly for January-April, 49,000 pounds bimonthly for May-June, 48,000 pounds bimonthly for July-December (Sampson, 2005).

Recovery Plans
US Pacific
United States
Single boat bottom otter trawls

Last updated on 4 April 2009

The stock of Dover sole is estimated to be well above the overfished level. No rebuilding is required.

Compliance
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

Until fairly recently the annual U.S. West Coast landings of Dover sole were generally smaller than the annual Acceptable Biological Catch (ABC) limits established by the Pacific Fishery Management Council (Sampson, 2005).

3.ENVIRONMENT AND BIODIVERSITY

ETP Species
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

Directed West Coast groundfish fisheries have consistently been categorized as Category III fisheries, meaning that they are “commercial fisheries determined by the [NMFS] Assistant Administrator to have a remote likelihood of, or no known incidental mortality and serious injury of marine mammals” (PFMC, 2006). This means that annual mortality and serious injury of a stock in a given fishery is less than or equal to 1 percent of the PBR level.

Other Target and Bycatch Species
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

The West Coast Groundfish Observer Program data indicate considerable latitudinal differences in the pattern of discarding of Dover sole caught in deep water (> 300 fa). In the south (Eureka to Conception) the discarded fish are slightly heavier on average than the retained fish, possibly due to discarding of large “jellied” fish, whereas in the north (US Vancouver and Columbia) the discarded fish are lighter (Sampson, 2005). Discard rate in 2003 was estimated to be 13.90% in Northern Area, while in the Southern Area it was 11.50%.

Habitat
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

Current stock assessments for 4 fisheries do not specify the habitat impacts caused by fishing activities. However, these groundfish fisheries are managed with a variety of closed areas intended to either minimize the bycatch of overfished groundfish species, or to protect groundfish habitat. Many of the closed areas are gear-specific, meaning that they are closed to some particular gear types, but not others.

Marine Reserves
US Pacific
United States
Single boat bottom otter trawls

Last updated on 20 July 2009

In March 2006, NOAA Fisheries Service approved a plan to establish and protect more than 130,000 square miles of marine waters off the West Coast as Essential Fish Habitat (EFH) for groundfish. The plan prohibits fishing methods that can cause long-term damage to the ocean floor, such as bottom trawling, within much of this area. Developed by the Pacific Fishery Management Council, the plan is aimed at replenishing fish stocks. It covers an area from Canada to Mexico, out to 200 nautical miles in some places. The plan was developed with support and advice from both environmental and fishing industry groups, and will provide much-needed habitat protection to areas that are essential to commercially valuable fish.

FishSource Scores

MANAGEMENT QUALITY

As calculated for 2009 data.

The score is ≥ 6.

No specific management plans in place. Landings have been increasing and stock has not been listed as depleted (Sampson. 2005)

As calculated for 2006 data.

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

The Set TAC is 7.60 ('000 t). The Advised TAC is 7.60 ('000 t) .

The underlying Set TAC/Advised TAC for this index is 100%.

As calculated for 2006 data.

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

The Catch is 5.87 ('000 t). The Set TAC is 7.60 ('000 t) .

The underlying Catch/Set TAC for this index is 77.2%.

STOCK HEALTH:

As calculated for 2005 data.

This measures the SSB as a percentage of the SSB40%.

The SSB is 189 ('000 t). The SSB40% is 117 ('000 t) .

The underlying SSB/SSB40% for this index is 161%.

As calculated for 2009 data.

The score is ≥ 6.

Data on reference points unavailable in recent years. but catch levels have been below MSY (16,800 t)

HUMAN RIGHTS ABUSE RISK

High Medium Low

This indicates the potential risk of human rights abuses within this fishery.

No data available for fishing mortality
No data available for recruitment

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)

SELECT MSC

NAME

US West Coast limited entry groundfish trawl

STATUS

MSC Certified on 3 June 2014

SCORES

Principle Level Scores:

Principle Score
Principle 1 – Target Species – Arrowtooth flounder 85.6
Principle 1 – Target Species – Dover sole 84.4
Principle 1 – Target Species – English sole 85.6
Principle 1 – Target Species – Petrale sole 81.0
Principle 1 – Target Species – Lingcod (North) 93.8
Principle 1 – Target Species – Lingcod (South) 88.8
Principle 1 – Target Species – Sablefish 83.3
Principle 1 – Target Species – Chilipepper rockfish 88.8
Principle 1 – Target Species – Longspine thornyhead 92.5
Principle 1 – Target Species – Shortspine thornyhead 92.5
Principle 1 – Target Species – Splitnose rockfish 92.5
Principle 1 – Target Species – Widow rockfish 88.8
Principle 1 – Target Species – Yellowtail Rockfish (N – Vancouver) 92.5
Principle 1 – Target Species – Yellowtail Rockfish (N – Columbia) 87.5
Principle 1 – Target Species – Yellowtail Rockfish (N – Eureka) 87.5
Principle 1 – Target Species – Yellowtail Rockfish (South) < 60
Principle 1 – Target Species – Longnose Skate 92.5
Principle 2 - Ecosystem 85.0
Principle 3 – Management System 94.4

Certification Type: Silver

Sources

Credits
  1. David B. Sampson. 2005. The Status of Dover Sole off the U.S. West Coast in 2005. Oregon State University Coastal Oregon Marine Experiment Station and Department of Fisheries and Wildlife Hatfield Marine Science Centerhttp://www.pcouncil.org/groundfish/gfsafe0406/Dover05_Final-corrected.pdf
  2. Federal Register / Vol. 72, No. 227 / Tuesday, November 27, 2007 / Rules and Regulations.http://www.nmfs.noaa.gov/pr/pdfs/fr/fr72-66048.pdf
  3. Medley, P.A.H., O’Boyle, R., Pedersen, M.G., Tingley, G.A., Hanna, S. S., Devitt, S., 2014. MSC Assessment Report for United States West Coast Limited Entry Groundfish Trawl Fishery. Version 6: Public Certification Report. Intertek Fisheries Certification, June 2014. 403pphttp://www.msc.org/track-a-fishery/fisheries-in-the-program/certified/pacific/us_west_coast_limited_entry_groundfish_trawl/assessment-downloads-1/20140602_PCR_V2_GRO223.pdf
  4. PFMC. 2005. Pacific Cost Groundfish Fishery Management Plan for the California, Oregon, and Washington Groundfish Fishery. Appendix C. Part 2. The Effects of Fishing on Habitat: West Coast Perspective. Pacific Fishery Management Council. November 2005. http://www.pcouncil.org/groundfish/gffmp/gfa19/GF_FMP_App_C2.pdf
  5. PFMC. 2006. Pacific Fishery Management Council. Fishery Management Plan for The California, Oregon, and Washington Groundfish Fishery as Amended Through Amendment 19. Including Amendment 16-4. November 2006.http://www.pcouncil.org/groundfish/gffmp/fmpthru19.pdf
  6. Sampson, D.B. 2005. The Status of Dover Sole off the U.S. West Coast in 2005. Pacific Fishery Managment Council, 198 p. http://www.pcouncil.org/wp-content/uploads/Dover05_Final-corrected.pdf
References

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