Rex Sole Flavor Profile
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Like other Flounder, Rex Sole have mild, sweet flesh with small, firm flakes and flesh which is white when raw as well as when cooked. They are considered one of the better Pacific Flounders.
Alternate Names
Witch Sole, Threadfin Sole
Typical Cooking Methods
- Bake
- Broil
- Deep-Fry
- Grill
- Poach
- Saute
- Smoke
- Steam
- Sushi
image by Archipelago Marine Research LtdRex Sole Description (Glyptocephalus zachirus, Errex zachirus)
Rex Sole are actually a right-eyed Flounder, not a Sole, but are called “Sole” because the term is more marketable. They have a uniform light brown to grey colored skin on their upper side and are off-white on the belly. Rex sole grow to about 2 feet long with a maximum weight of 4 1/2 lbs, but most are caught at a weight of about 2 pounds.
Rex Sole Availability
Fresh seafood availability chart: green areas show peak availability, light green show limited availability, gray indicates not available fresh.
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Rex Sole Butchering Yield Percentage & Recovery
| Item | To Skin/On Fillets | To Skin/Off Fillets | Notes |
|---|---|---|---|
| Whole Round | — | — | to Dressed Head/On 85% (+/- 5) |
| Whole Round | — | — | to Dressed Head/Off 65% (+/- 10) |
| Whole Round | — | — | to Skin/Off Fillets 32% (+/- 5) |
| Head/On gutted | — | 39% | — |
| Head/Off gutted | — | 51% | — |
| Yield % varies according to a number of factors including: size of fish, season, sex, and the skill of your fishmonger. | |||
Range & Habitat
Rex sole are found in the eastern Pacific, from the Bering Sea to Baja California in Mexico, and in the western Pacific from the Sea of Japan to the Russian coast. They dwell at depths up to 3000 feet deep.
Typical Wholesale Products
Whole, Dressed, H&G, Fillets (2 – 4 oz avg)
Nutritional Informationbased upon a 6 oz (171 grams) raw edible serving.
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Sustainability Info
| Name | Alternate Names | Catch Method | Catch Region |
Seafood Watch |
Ocean Wise |
Sea Choice |
Mercury Concerns |
|---|---|---|---|---|---|---|---|
| Rex Sole, Errex zachirus, Glyptocephalus zachirus | Flounder |
Wild – Bottom Longline, Bottom Trawl | US West Coast, Alaska, British Columbia |
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Low |
| Disclaimer: The sustainability info above is accurate to the best of our knowledge. However, each program randomly updates their information without our knowledge. We therefore recommend that you verify the current accuracy of this information. | |||||||
 = Best Choice/Recommended = Good Alternative = Avoid/Not Recommended |
Updated August 2013 |
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Where can I buy Rex sole , please
Asian stores tend to have them
I have only seen Rex Sole sold by seafood vendors to restaurants. It is rare to see it sold in grocery stores.