Food · Fermented foods

Minami-maguro (Southern Bluefin Tuna)

みなみまぐろ (Minami-maguro)

Also known as: Minami-maguro, Southern bluefin tuna, Thunnus maccoyii, 南鮪, Indo-maguro

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At a glance

CategoryFood
Japanese labeling nameみなみまぐろ
Common Japanese notationsみなみまぐろ, 南鮪, ミナミマグロ, インドマグロ
OriginSouthern bluefin tuna (Thunnus maccoyii); harvested in Southern Hemisphere waters; CCSBT-managed (Commission for Conservation of Southern Bluefin Tuna) quota system; principal supply Australian, New Zealand, South African landings
Typical functionsPremium sushi/sashimi — alternative to Pacific bluefin (honmaguro), with similar premium positioning, Toro-grade fatty cuts
Regulatory status in JapanStandard food labeling. **CCSBT quota status awareness — IUCN Endangered.** Fish allergen recommended.

Minami-maguro (みなみまぐろ / 南鮪) — southern bluefin tuna (Thunnus maccoyii) — is a Southern Hemisphere bluefin tuna species. Premium sushi/sashimi alternative to honmaguro. CCSBT quota-managed; IUCN Endangered.

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Classification

Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.

Common OEM product categories

Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.

  • Frozen sushi-grade minami-maguro

Ingredient profile

Thunnus maccoyii southern bluefin tuna.

OEM applications

Premium sushi/sashimi.

Toro fatty cuts.

For OEM: sushi-grade frozen supply.

Regulatory classification in Japan

Standard food labeling. CCSBT quota awareness. Fish allergen recommended.

Regulatory classification in other markets

EUCCSBT-managed; sustainability awareness.
USAEstablished US sushi specialty.
ChinaPremium specialty positioning.
KoreaPremium specialty positioning.

Market reference formulations

Example finished products will be added after verification.

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Seasonality & supply calendar

Harvest months
Wild: May – August (Indian Ocean / South Pacific)
Peak supply
June – July
Off-season
Frozen supply year-round

Source: 水産庁 / CCSBT (みなみまぐろ保存委員会) TAC. Southern bluefin is under strict CCSBT (みなみまぐろ保存委員会) quota; cultured (Australia) supplements wild catch.

Storage requirements

How the receiving OEM facility needs to handle inbound raw material.

Temperature
Super-frozen −60°C mandatory for sashimi-grade
Conditions
Sealed, complete cold chain; CCSBT (みなみまぐろ保存委員会)-tagged
Shelf life
12+ months at −60°C

Supply concentration

Where this ingredient comes from — useful for single-source-risk planning.

Primary regions
Wild from Indian / Southern Oceans; cultured in South Australia (Port Lincoln)
Import dependence
Nearly all imported (Australia, NZ, South Africa); CCSBT (みなみまぐろ保存委員会) quotas restrict volume

CCSBT (みなみまぐろ保存委員会) statistics

Certifications commonly available

Certification schemes commonly obtainable for this raw material. Always confirm the specific supplier's current certificate before contracting.

SchemeAvailability
CCSBT (みなみまぐろ保存委員会) documentationRequiredAll commercial southern bluefin must carry CCSBT (みなみまぐろ保存委員会) catch documents
MSCOn-requestSome Australian SBT fisheries certified
ASCOn-requestAustralian cultured SBT operations
HalalInherent
KosherInherent

Documented adulteration risks

Known fraud / adulteration patterns reported by regulators or industry bodies. Specify CoA params and screening tests on every PO.

  • CCSBT quota fraud / IUU fishing — under-reported catches
  • Imported SBT mislabeled as honmaguro

Detection: CCSBT (みなみまぐろ保存委員会) catch documents (mandatory); DNA species ID

CCSBT (みなみまぐろ保存委員会) / 水産庁

Alternative ingredients

Related ingredients commonly evaluated as substitutes.

Quick answers

What is Minami-maguro (Southern Bluefin Tuna)?
Minami-maguro (みなみまぐろ / 南鮪) — southern bluefin tuna (Thunnus maccoyii) — is a Southern Hemisphere bluefin tuna species. Premium sushi/sashimi alternative to honmaguro. CCSBT quota-managed; IUCN Endangered.
What is the regulatory status of Minami-maguro (Southern Bluefin Tuna) in Japan?
Standard food labeling. **CCSBT quota status awareness — IUCN Endangered.** Fish allergen recommended.
What products typically use Minami-maguro (Southern Bluefin Tuna)?
Frozen sushi-grade minami-maguro
Where does Minami-maguro (Southern Bluefin Tuna) come from?
Southern bluefin tuna (Thunnus maccoyii); harvested in Southern Hemisphere waters; CCSBT-managed (Commission for Conservation of Southern Bluefin Tuna) quota system; principal supply Australian, New Zealand, South African landings
What is the INCI / JSCI labeling name for Minami-maguro (Southern Bluefin Tuna)?
JSCI: みなみまぐろ

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References

  1. 文部科学省 (Ministry of Education, Culture, Sports, Science and Technology) Standard Tables of Food Composition — みなみまぐろ 各形態

Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.

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