Glacier 51 toothfish with miso butter

Nestled in the remote sub-Antarctic region, a staggering 4,109 km away from mainland Australia, lies the formidable Heard Island—one of the most unforgiving islands on the planet. At its southern tip, the awe-inspiring Glacier 51, also known as 51 Glacier, cascades into the perilous icy waters that envelop the island, creating an optimal habitat for the highly coveted Glacier 51 Toothfish. These elusive creatures patrol the underwater volcanic crevices a remarkable 2,000 meters below sea level.

The Glacier 51 Toothfish thrives in the harsh environment created by the glacier’s frigid waters. Known for its rich fat content and abundant Omega-3, this toothfish, scientifically known as Dissostichus, adapts well to various cooking methods, whether subjected to dry or moist heat. Its crustacean-like flavor and pristine snow-white fillet lend themselves beautifully to a stylish Japanese recipe.

Exploring the depths of the sub-Antarctic, this prized Toothfish inhabits the underwater volcanic crevices beneath Heard Island, navigating the treacherous waters with an unparalleled resilience. Dive into the world beneath the waves, where Glacier 51 creates an extraordinary environment for this remarkable species, showcasing the unique intersection of nature’s extremes.

Habitat Toothfish are primarily found in the Southern Ocean and the cold waters surrounding Antarctica. The Glacier 51 Toothfish specifically thrives in the sub-Antarctic region, navigating the depths beneath the icy waters near Heard Island.

Appearance The toothfish is characterized by its elongated, sleek body and sharp teeth, which contribute to its name. It typically has a silvery coloration, and its streamlined shape aids in swift movement through the water.

Depth Glacier 51 Toothfish is known to patrol underwater volcanic crevices at remarkable depths, often reaching depths of around 2,000 meters below sea level. This deep-sea habitat adds an element of mystery to its lifestyle.

Environment The Glacier 51 Toothfish thrives in the cold, nutrient-rich waters created by the melting glaciers around Heard Island. The unique combination of icy temperatures and underwater volcanic features contributes to the creation of an environment that sustains this highly prized species.

Culinary Value Known for its high fat content and Omega-3 fatty acids, the Glacier 51 Toothfish is valued in the culinary world. Its versatile nature allows it to adapt well to various cooking methods, making it a sought-after delicacy.

Conservation Toothfish populations have faced challenges due to overfishing in the past. Efforts have been made to regulate fishing practices and establish conservation measures to ensure the sustainability of toothfish populations and protect the delicate ecosystems they inhabit.

The Glacier 51 Toothfish serves as a fascinating example of marine life adapted to extreme environments, offering a glimpse into the unique and diverse ecosystems that exist beneath the surface of our planet’s oceans.

Gale force winds, horizontal snow, ten metre swell and as little as four hours of light per day are just some of what mother nature throws at this incredible Marine Stewardship Council (MSC) certified sustainable fishery. Source

Glacier 51 pours into the surrounding treacherous icy waters creating the ideal environment for the highly prized Toothfish. With a high fat and Omega 3 content, Glacier 51 Toothfish is well suited to both dry and moist heat preparations. The flavour is crustacean-like and the pristine snow-white fillet takes on this stylish Japanese recipe beautifully.


Fear not, this particular species of Toothfish undergoes rigorous annual stock assessments in collaboration with the Australia Antarctic Division to ensure accurate ongoing monitoring of the stock. Vessels are required to conduct research cruises and tag and release thousands of Toothfish to improve our information on the biology and status of this incredible fish.

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Glacier 51 Toothfish with miso butter gloss

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  • Author: Samantha Gowing
  • Total Time: 25 minutes
  • Yield: Serves 2


Isolated deep in the sub-Antarctic a staggering 4,109 km from mainland Australia lies one of the most inhospitable islands in the world – Heard Island. On the southern tip of this spectacular geographical feature, the breathtaking Glacier 51 (Fiftyone Glacier) pours into the surrounding treacherous icy waters, creating the ideal environment for the highly prized Glacier 51 Toothfish found patrolling the underwater volcanic crevices 2,000 metres below sea level.

Gale force winds, horizontal snow, ten metre swell and as little as four hours of light per day are just some of what mother nature throws at this incredible Marine Stewardship Council (MSC) certified sustainable fishery.



Units Scale

For the fish
2 fillets Glacier 51 Toothfish, appx 100 grams each, skin on. at room temp.
1 teaspoon macadamia oil

For the miso butter gloss
3 tablespoons mirin
3 tablespoons white wine
1/4 cup sugar
1/4 cup white miso
1 tablespoon butter, cubed
1/4 cup dried arame seaweed, soaked and drained
Micro herbs, succulents of your choice


For the fish

  1. Heat oil in a heavy-based pan.
  2. Cook fish skin side down 4 minutes, turn over and cook a further 3-5 minutes pending on thickness.
  3. Remove from pan, keep warm.

For the miso gloss

  1. In a heavy-based small saucepan, combine mirin, white wine and sugar. Whisk over a low heat until the sugar has dissolved. Slowly whisk in miso paste, ensuring it does not boil. Then add the butter, whisking gently to form a rich and glossy sauce.
  2. Place fish on serving plates. Top with herbs, succulents and seaweed, and serve with warm miso gloss.


This sauce also goes beautifully with roast chicken, BBQ meats and crispy tofu.

  • Prep Time: 15 mins
  • Cook Time: 10 mins
  • Category: Fish
  • Method: Pan fry
  • Cuisine: Modern Australian



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