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Species Directory

English Sole

Overview

English Sole

Parophrys vetulus

Also Known As
Sole, Lemon sole

Quick Facts

Region
Alaska, West Coast
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About The Species

U.S. wild-caught English sole is a smart seafood choice because it is sustainably managed and responsibly harvested under U.S. regulations.

Population Status Icon

Population Level

Above target population levels on the West Coast and in the Gulf of Alaska. Population status is unknown in the Bering Sea/Aleutian Islands.

Fishing Status Icon

Fishing Status

At recommended levels.

Habitat Impacts Icon

Habitat Impacts

Area closures and gear restrictions protect habitats affected by bottom trawls used to harvest English sole.

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Bycatch

Regulations are in place to minimize bycatch.

Status

  • According to the 2013 assessment, English sole on the West Coast are not overfished, and are not subject to overfishing based on 2016 catch data.
  • In the Gulf of Alaska, English sole is assessed as part of a complex with other flatfish, called the “shallow water flatfish complex”:
    • According to the 2018 assessment, this complex is not overfished and not subject to overfishing.
  • In the Bering Sea/Aleutian Islands, English sole is assessed as part of a complex with other flatfish, called the “other flatfish complex”:
    • This complex was last assessed in 2018, but data were insufficient to determine whether the complex is overfished.
    • An overfishing level is set for the complex, and as long as this level is not exceeded the complex is not subject to overfishing. The complex is not subject to overfishing.

Appearance

  • English sole are flatfish, with both of their eyes located on the right side of their head.
  • They have a pointed snout and their upper eye is visible on their underside. 

Biology

  • Female English sole grow twice as large as males, up to about 2 feet. 
  • Females can live for more than 20 years, 4 years longer than males.
  • Males are able to reproduce when they reach 2 years old. Females mature starting at 3 years old.
  • They spawn from winter to early spring over soft muddy ocean floors in water 165 to 230 feet deep.
  • Depending on their size, females release between 150,000 and 2 million eggs. Eggs sink to the bottom a few days after spawning. 
  • Larvae stay near the surface for about 2 to 3 months before they are transported by wind and tidal streams to nearshore and estuarine nursery areas – an uncommon characteristic for a flatfish species in this region. 
  • Juveniles spend 1 to 2 years developing in nursery areas before migrating out to deeper waters, typically in late May.
  • Larvae feed on plankton (tiny floating plants and animals).
  • Juvenile and adult English sole feed on crustaceans, worms, small bivalves, clam siphons, and other bottom-dwelling invertebrates.
  • English sole feed during the day using sight and smell, and sometimes dig for their prey.
  • Seabirds, larger fishes, and marine mammals prey on juveniles. Marine mammals, sharks, and other large fish prey on adults. 

Where They Live

  • English sole are found off the west coast of North America from the Bering Sea and Aleutian Islands to central Baja California.

Management

  • NOAA Fisheries and the Pacific Fishery Management Council manage the English sole fishery on the West Coast.
  • Managed under the Pacific Coast Groundfish Fishery Management Plan:
    • Limits on the number of permits and fishermen allowed.
    • Limits on the minimum size of fish that may be harvested.
    • Limit on how much may be harvested in one fishing trip.
    • Certain seasons and areas are closed to fishing.
    • Gear restrictions help reduce bycatch and impacts on habitat.
    • A trawl rationalization catch share program includes:
      • Catch limits based on the health of each fish stock and divided into shares that are allocated to individual fishermen or groups.
      • These fishermen can decide how and when to catch their share – preferably when weather, markets, and business conditions are most favorable, allowing the fishery the flexibility to be more environmentally responsible, safer, more efficient, and more valuable.
  • NOAA Fisheries and the North Pacific Fishery Management Council manage the English sole fishery in Alaska.
  • Managed under the Fishery Management Plan for Groundfish in the Gulf of Alaska:
    • There is no directed fishery for English sole, and only minor amounts are landed incidentally in other fisheries.
  • Managed under the Fishery Management Plan for Groundfish of the Bering Sea and Aleutian Islands:
    • Fishermen must have a permit to participate in these fisheries, and the number of permits is limited to control the amount of fishing.
    • Non-pelagic trawl gear used in directed flatfish fisheries in the Bering Sea is required to be modified to raise portions of the gear off the sea floor.
    • There is no directed fishery for English sole, but managers set total allowable catch levels for the flatfish complex that contains English sole.

Recreational Fishing Regulations

Commercial Fishing Regulations

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