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Southern Bluefin Tuna

Thunnus maccoyii

Southern Bluefin Tuna
Species

Tunas

Description

This marine-dwelling fish lives in open waters and is wild-caught as well as being ranched in sea pens off Port Lincoln (SA). They can also be farmed. It is found around the coast from the top of WA’s western coast southeast to Eden (NSW) and north to Rockhampton (Queensland) and caught by pole-and-line, purse seining and drift longlining in the Great Australian Bight and off Tasmania.

Other Names

Bluefin Tuna, Bluefin, SBT, Tuna, Tunny.

Family

Scombridae (Mackerels).

Season

Available year round, with peaks from SA in December to March, from Tasmania in April to June and from NSW in May to September, but always in limited supply as most is exported.

Size and Weight

Commonly up to 100kg and 180cm, but can grow to 260kg and 245cm.

Price

High priced (the highest priced Tuna).

Relations

Albacore, Bigeye Tuna, Bonito, Longtail Tuna, Mackerels (Atlantic, Blue, Chub, Frigate, Grey, School, Shark, Spanish, Spotted), Mackerel Tuna, Northern Bluefin Tuna, Skipjack Tuna, Slender Tuna, Wahoo, Yellowfin Tuna.

To Buy

Usually sold as sashimi. Look for pinkish to red flesh (colour varies with cut) that is firm, lustrous and moist without any dull brown markings or oozing water and with a pleasant fresh sea smell. Always buy sashimi-grade fish if it is to be served raw or rare.

To Store

Make sure whole fish is scaled, gilled, gutted and cleaned thoroughly. Wrap steaks and cutlets in plastic wrap or place in an airtight container. Refrigerate for up to 3 days or freeze for up to 3 months below -18ºC. Sashimi-grade fish should be eaten within 24 hours of purchase, or else cooked.

To Cook

Average yield is 70-75%. Has a medium flavour, medium oiliness and moist, firm flesh, which quickly becomes dry if overcooked. The cooked flesh is creamy brown in colour and breaks into large flakes; there are very few bones to worry about.

Cooking Methods

Poach, pan-fry, stir-fry, bake, braise, grill, barbecue, smoke, raw (most highly prized Tuna for sashimi), pickle. The firm flesh holds together well in soups, curries and casseroles and can be cubed for kebabs.

Due to its high price however, it is rarely cooked and usually consumed as sashimi.

Goes Well With

Anchovies, balsamic vinegar, capers, capsicum, eggplant, garlic, ginger, lemon, lime, mayonnaise, olive oil, soy sauce, tomato, wasabi.

Alternatives

Atlantic Salmon, Swordfish, other Tunas, Yellowtail Kingfish.

Imports

Sashimi-quality tunas are imported from New Zealand and other South Pacific countries.

Recipes

Barbecued Tuna Steaks with Walnut Sauce
Basque Tuna Casserole (Marmitako)
Char-grilled Tuna with Anchovy Mayonnaise
Fish Satay
Mixed Thin & Thick Sushi Rolls (Norimaki)
Salade Nicoise
Seared Tuna with Rocket & Potato Salad
Seared Tuna with Salsa Verde
Smoked Tuna Salad
Spanish Tuna 'Meatballs'
Tuna Baked in Paper Parcels
Tuna Tartare