Wolffish – Nutritional Value, Health Benefits, Recipes

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The wolffish (Anarhichas lupus), also known as the seawolf, Atlantic catfish, ocean catfish, devil fish, wolf eel (the common name for its Pacific relative), woof or sea cat, is a marine fish of the wolffish family Anarhichadidae, native to the North Atlantic Ocean. The numbers of the Atlantic wolffish in US waters are rapidly being depleted, most likely due to overfishing and bycatch, and it is currently a Species of Concern according to the U.S. National Oceanic and Atmospheric Administration's National Marine Fisheries Service.[rx]...

Key Takeaways

  • This article explains Wolffish Scientific Classification in simple medical language.
  • This article explains Nutritional value of Fish, wolffish, Atlantic, cooked, dry heat in simple medical language.
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Definition

The wolffish (Anarhichas ), also known as the seawolfAtlantic catfishocean catfishdevil fishwolf eel (the common name for its Pacific relative), woof or sea cat, is a marine fish of the wolffish family Anarhichadidae, native to the North Atlantic Ocean. The numbers of the Atlantic wolffish in US waters are rapidly being depleted, most likely due to overfishing and bycatch, and it is currently a Species of Concern according to the U.S. National Oceanic and Atmospheric Administration’s National Marine Fisheries Service.[rx]

Wolffish Quick Facts
Name: Wolffish
Scientific Name: Anarhichas lupus
Origin Anarhichas lupus
Colors Purplish to brown, olive green, blueish gray
Shapes Elongated, subcylindrical, compressed, smooth, slippery; Length: 1.5 meters (5 ft.)
Calories 146 Kcal./cup
Major nutrients Vitamin B-12 (116.67%)
Selenium (101.27%)
Isoleucine (73.56%)
Lysine (73.36%)
Tryptophan (67.95%)
Health benefits Cure , Skin health, Treat , Strengthen , Eye health

Wolffish facts

It is a fish that measures about 50 to 60 cm in length. It prefers sand or mud bottoms and is 40 to 200 m deep. It is mostly found in Murmansk, English Channel, Faroe Islands, Labrador, Cape cod, and South Greenlandic waters. It has strong teeth and jaws. The body consists of a large head, mouth, small eyes, and rounded snout. The body has ten irregular stripes and its color ranges from slate blue to dull olive green. It could grow up to 150 cm long. It is also called catfish, wolf eel, and sea wolf. It has scaleless skin.

Name Wolffish facts and nutritional benefits
Scientific Name Anarhichas lupus
Native Native to Northern Atlantic as well as Pacific Oceans
Common/English Name Seawolf, Ocean catfish, Atlantic catfish, Wolf eel, Devilfish, Woof, Sea cat, Wolf-fish, Cat-fish,  Atlantic wolffish
Name in Other Languages Danish: Havkat, Stribet havkat, Koteletfisk;
Dutch: Zeewolf;
French: Loup de mer,  Loup de l’Atlantique;
Finnish: Merikissa;
German: Gestreifter Katfisch, Katfisch,  Gestreifter Seewolf, Seewolf;
Greenlandic: Qeeraaraq;
Icelandic: Steinbítur;
Italian: Lupa di mare, Bavosa lupa;
Norwegian: Gråsteinbit;
Polish: zebacz smugowy;
Russian: zubatka;
Swedish: havskatt;
Welsh: morflaidd
Lifespan 20 years
Diet Molluscs, echinoderms, crustaceans, Crabs, starfish, lobsters, sea urchins, shellfish and prawns
Predators Cod, Greenland sharks
Breeding season December-March
Shape & size Elongated, subcylindrical, compressed, smooth, slippery; Length: 1.5 meters (5 ft.)
Weight 18 kg (40 lb)
Color Purplish to brown, olive green, blueish gray
Skin Thick
Eggs Diameter: 5.5-6 mm
Major Nutritions Vitamin B-12 (Cobalamine) 2.8 µg (116.67%)
Selenium, Se 55.7 µg (101.27%)
Isoleucine 1.23 g (73.56%)
Lysine 2.453 g (73.36%)
Tryptophan 0.299 g (67.95%)
Threonine 1.171 g (66.53%)
Valine 1.376 g (65.15%)
Histidine 0.787 g (63.88%)
Leucine 2.171 g (58.74%)
Protein 26.7 g (53.40%)
Health Benefits
  • Cure anemia
  • Skin health
  • Treat weakness
  • Strengthen immunity
  • Eye health
  • Treatment for Alzheimer’s
  • Maintain level
  • Reduce stress
  • Heart problems
  • Cure cramps
Calories in 0.5 fillet (119 gm) 146 Kcal.
Precautions         
  • Consume it in limited amounts.
  • Avoid by the allergic people.
  • The patients of health ailments should consult to doctor.
How to Eat
  • It is consumed mostly fried, steamed, boiled, broiled, baked and microwaved.
  • It is also added to various recipes.
Other Facts
  • The skin is used as leather.
  • The world record made by Wolffish measures about 5 feet long.

Wolffish Scientific Classification

Scientific Name: Anarhichas lupus

Rank Scientific Name & (Common Name)
Kingdom Animalia
Subkingdom Bilateria
Infrakingdom Deuterostomia
Phylum Chordata
Subphylum Vertebrata
Infraphylum Gnathostomata
Superorder Acanthopterygii
Order Perciformes
Suborder Zoarcoidei
Family Anarhichadidae
Genus Anarhichas
Species Anarhichas lupus
Superclass Osteichthyes
Class Actinopterygii
Sub Class Neopterygii
Infraclass Teleostei

The Seawolf, Ocean catfish, Atlantic catfish, Wolf eel, Devilfish, Woof, Sea cat, Wolf-fish, Cat-fish,  Atlantic wolfish (Anarhichas lupus) is the perciform fish of the family Anarhichadidae. It is found in sand or mud bottoms and is 40 to 200 m deep. It is native to Northern Atlantic as well as Pacific Oceans. The body of Wolffish is elongated, subcylindrical, compressed, smooth, slippery measuring 1.5 meters (5 ft.) long. Normally it weighs about 18 kg (40 lb). The skin’s color varies from purplish to brown, olive green, and blueish gray. It breeds from December to March. The diet consists of mollusks, echinoderms, crustaceans, crabs, starfish, lobsters, sea urchins, shellfish, and prawns. Cod and Greenland sharks are known as their predators. It usually has a lifespan of 20 years.

History

They are found 10 to 400 meters deep. Atlantic Wolffish is found in both the Arctic and North Atlantic. In Northeast Atlantic, it is found in Faroe Islands, Iceland, North Sea, White Sea, and the Barents Sea. In West North Atlantic, it is found in the Davis Strait and Cape Hatteras. In Canada, it occurs in Newfoundland, Labrador Sea, Gulf of St. Lawrence, Bay of Fundy, Scotian Shelf, and the Gulf of Maine.

Diet

Atlantic wolffish use their strong jaws to eat hardshell mollusks, crustaceans, and echinoderms. They do not eat other fish. They are known to frequently eat large whelks (Buccinum), cockles (PolynicesChrysodomus and Sipho), sea clams (Mactra), large hermit crabs, starfish, sea urchins. They are an important predator of sea urchins and green crabs, whose populations escalate rapidly and can negatively affect the health of a marine system.[rx]

Reproduction

The manner in which Atlantic wolffish fertilize their eggs distinguishes them from many fish. Instead of the female depositing her eggs in the open ocean for the male fish to fertilize and then continue on his way, they are internally fertilized and the male wolffish stays with the nest and protects the eggs for as long as four months until the brood is strong enough to gain independence. Their eggs are 5.5–6.0 mm in diameter, (among the largest fish eggs known), yellow-tinted and opaque. The eggs are laid on the ocean floor, often in shoal water, sticking together in loose clumps, surrounded by seaweed and stones. Atlantic wolffish mature relatively late, at age six.[rx]

Nutritional value of Fish, wolffish, Atlantic, cooked, dry heat

Serving Size: 0.5 fillets, 119 g

Calories 146 Kcal. Calories from Fat 32.76 Kcal.

Proximity Amount % DV
Water 88.33 g N/D
Energy 146 Kcal N/D
Energy 613 kJ N/D
Protein 26.7 g 53.40%
Total Fat (lipid) 3.64 g 10.40%
Ash 1.77 g N/D
Minerals Amount % DV
Calcium, Ca 10 mg 1.00%
Iron, Fe 0.14 mg 1.75%
Magnesium, Mg 45 mg 10.71%
Phosphorus, P 305 mg 43.57%
Potassium, K 458 mg 9.74%
Sodium, Na 130 mg 8.67%
Zinc, Zn 1.19 mg 10.82%
Copper, Cu 0.044 mg 4.89%
Manganese, Mn 0.023 mg 1.00%
Selenium, Se 55.7 µg 101.27%
Vitamins Amount % DV
Water-soluble Vitamins
Vitamin B1 (Thiamin) 0.248 mg 20.67%
Vitamin B2 (Riboflavin) 0.115 mg 8.85%
Vitamin B3 (Niacin) 3.092 mg 19.33%
Vitamin B5 (Pantothenic acid) 0.783 mg 15.66%
Vitamin B6 (Pyridoxine) 0.55 mg 42.31%
Vitamin B9 (Folate) 7 µg 1.75%
Folic Acid 0 µg N/D
Folate, food 7 µg N/D
Folate, DEF 7 µg N/D
Vitamin B-12 (Cobalamine) 2.8 µg 116.67%
Fat-soluble Vitamins
Vitamin A, RAE 155 µg 22.14%
Vitamin A, IU 515 IU N/D
Retinol 155 µg N/D
Lipids Amount % DV
Fatty acids, total saturated 0.557 g N/D
Myristic acid  14:00(Tetradecanoic acid) 0.101 g N/D
Palmitic acid 16:00 (Hexadecanoic acid) 0.386 g N/D
Stearic acid 18:00 (Octadecanoic acid) 0.07 g N/D
Fatty acids, total monounsaturated 1.276 g N/D
Palmitoleic acid 16:1 (hexadecenoic acid) 0.288 g N/D
Oleic acid 18:1 (octadecenoic acid) 0.787 g N/D
Gadoleic acid 20:1 (eicosenoic acid) 0.174 g N/D
Erucic acid 22:1 (docosenoic acid) 0.027 g N/D
Fatty acids, total polyunsaturated 1.289 g N/D
Linoleic acid 18:2 (octadecadienoic acid) 0.031 g N/D
Linolenic acid 18:3 (Octadecatrienoic acid) 0.014 g N/D
18:04 0.093 g N/D
20:4 undifferentiated 0.136 g N/D
20:5 n-3 (EPA) 0.468 g N/D
22:5 n-3 (DPA) 0.065 g N/D
22:6 n-3 (DHA) 0.482 g N/D
Cholesterol 70 mg N/D
Amino acids Amount % DV
Tryptophan 0.299 g 67.95%
Threonine 1.171 g 66.53%
Isoleucine 1.23 g 73.56%
Leucine 2.171 g 58.74%
Lysine 2.453 g 73.36%
Methionine 0.79 g N/D
Cystine 0.287 g N/D
Phenylalanine 1.042 g N/D
Tyrosine 0.901 g N/D
Valine 1.376 g 65.15%
Arginine 1.598 g N/D
Histidine 0.787 g 63.88%
Alanine 1.615 g N/D
Aspartic acid 2.733 g N/D
Glutamic acid 3.985 g N/D
Glycine 1.282 g N/D
Proline 0.944 g N/D
Serine 1.089 g N/D

*Above mentioned Percent Daily Values (%DVs) are based on 2,000 calorie diet intake. Daily values (DVs) may be different depending upon your daily calorie needs. Mentioned values are recommended by the U.S. Department of Agriculture. They are not healthbenefitstimes.com recommendations. Calculations are based on average age of 19 to 50 years and weigh 194 lbs. Source: https://ndb.nal.usda.gov/ Wolffish -  Nutritional Value, Health Benefits, Recipes

Health benefits of Wolffish

Wolffish is loaded with nutrients that assist in the performance of bodily functions effectively. It is a great source of vitamins and minerals. The study shows that the intake of seafood helps to provide relief from symptoms. Due to the high content of omega-3 fatty acids, it helps to overcome depression. It promotes brain functions as well as concentration ability.

  1. Cure anemia

It helps to treat megaloblastic anemia and pernicious anemia. Vitamin B12 helps to restore Intrinsic factor that helps to maintain normality of blood. (1)

  1. Skin health

Protein is essential for strengthening tissues and mechanical support. It is vital and strengthens tissues, cells, and organs such as skin. The study shows that collagen helps to restore dermal collagen protein synthesis. The level of collagen determines the skin’s appearance and health. (2) (3)

  1. Treat weakness

Phosphorus helps to cure , , and . The supplements of phosphorus help to cure sexual weakness and other health conditions such as frigidity, loss of libido, impotence as well as sperm motility. (4)

  1. Strengthen immunity

Pyridoxine is vital for immune health in the body. It helps to prevent various infections. The body can be victimized if this vitamin is not adequate in the body. (5)

  1. Eye health

Vitamin A is essential for promoting vision. It prevents the conditions such as dry eyes and assists to form visual purple in the eyes. It promotes health and prevents the chances of night blindness. It also lowers the chances of macular degeneration and cataracts that are related to aging. (6)

  1. Treatment for Alzheimer’s

Thiamine helps to slow down . Vitamin B1 serves as an effective treatment for this disease. The study is still going on to determine more. (7)

  1. Maintain cholesterol level

Niacin helps to effectively lower bad cholesterol and increase good cholesterol. It also prevents the thickening of walls and chances of . (8)

  1. Reduce stress

Pantothenic acid helps to lower stress, depression, and anxiety. It also promotes mental fitness. It regulates hormones that are liable for these mental problems. (9)

  1. Heart problems

Magnesium prevents irregular heartbeats and prevents muscle stress. It prevents the health problems such as , cramps, , , , and . The deficiency of magnesium in the body leads to lethal results. (10)

  1. Cure cramps

The low presence of potassium in the blood is the cause of a condition named hypokalemia. The high consumption of potassium-rich food prevents the chances of muscle cramps. (11)

How to Eat         

  • It is consumed fried, steamed, boiled, broiled, baked, and microwaved.
  • It is added to various recipes.

Precautions 

  • The consumption of sea fish if one is trying to reduce inflammatory diseases such as heart disease.
  • Farmed ones contain arsenic that leads to arsenic poisoning.
  • Seafood should be cooked safely in order to prevent foodborne illness.
  • Pregnant women, young children, older adults, people having lower stomach acid and compromised immune systems (HIV/AIDS, disease, cancer, , gastrointestinal disorders, people taking steroids, , or immune system) are prone to higher risk.
  • It might be contaminated with bacteria such as Vibrio parahaemolyticus, Vibrio vulnificus, and other bacteria relate to land use, sewage discharges, runoff, etc. These microorganisms occur naturally in warm coastal waters which could cause even death or serious illness in individuals who are at higher risk.
  • Listeria monocytogenes could cause a serious foodborne illness known as listeriosis.
  • The virus A could survive in light cooking. So one should consume it after being properly cooked.
  • Fish could have toxins that could cause illness such as ciguatoxin and scombrotoxin, or histamine poisoning.
  • Sea fish is related to Scombrotoxin (histamine) which develops when fish is not kept cold enough. The symptoms develop quickly and also disappear completely within 24 hours.
  • The flesh of tropical marine fishes might cause ciguatera poisoning experiencing gastrointestinal maladies that could last for several days, weakness in arms and legs, and reversal inability to differentiate between cold and hot. The symptoms could persist for weeks.
  • Farmed seafood results in to increase in inflammation leading to weight gain, , and heart diseases.
  • The imbalance ratio of Omega-6 and Omega-3 causes heart disease and .
  • Seafood and fish in farms have polychlorinated biphenyls (PCBs), organophosphorus (OPs), organochlorine (OC), trifluralin pesticides, and hexachlorobenzene (HCB) causing diseases or even death.
  • The seafood has a high content of mercury, which may lead to mercury toxicity.
  • Consume it in moderate amounts. So consume it with caution or Avoid consuming it raw.
  • Some people might get allergic reactions. So avoid it.
  • It has a high chance of contamination.
  • One should limit its intake.
  • Consult the doctor by pregnant women and children before consuming it. Children and pregnant women should avoid it because the high content of mercury might cause a negative impact on the development of the nervous system of a fetus.
  • Seafood or fish have purines in it which is harmful to people having purine-related problems. Excess purines result in an excess buildup of uric acid that could lead to the formation of stones as well as gout.

References

Doctor visit helper

Prepare before seeing a doctor

A simple rural-patient checklist to help you explain symptoms clearly, ask better questions, and avoid unsafe self-treatment.

Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

  • Write when the problem started and how it changed.
  • Bring old prescriptions, investigation reports, and current medicines.
  • Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
  • Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

  • What is the most likely cause of my symptoms?
  • Which danger signs mean I should go to hospital quickly?
  • Which tests are necessary now, and which can wait?
  • How should I take medicines safely and what side effects should I watch for?
  • When should I come for follow-up?

Tests to discuss

  • Vital signs: temperature, pulse, blood pressure, oxygen saturation
  • Basic physical examination by a clinician
  • CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

  • Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
  • Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
  • Do not delay emergency care when danger signs are present.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Avoid heavy lifting, sudden bending, and prolonged bed rest.
  • Use comfortable posture and gentle movement as tolerated.
  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Doctor / qualified healthcare provider
Tests to discuss with doctor
  • Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
  • Relevant blood, urine, imaging, or specialist tests only after clinical assessment
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Wolffish – Nutritional Value, Health Benefits, Recipes

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

Internal learning pathway

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