Food · Fermented foods
Kuro-Kajiki (Black Marlin)
くろかじき (Kuro-kajiki)
Also known as: Kuro-kajiki, Black marlin, Pacific blue marlin, Istiompax indica, Makaira mazara, 黒梶木, クロカジキ
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| Category | Food |
|---|---|
| Japanese labeling name | くろかじき |
| Common Japanese notations | くろかじき, 黒梶木, クロカジキ, シロカワカジキ |
| Origin | Black marlin (Istiompax indica) and related Pacific blue marlin (Makaira mazara); large pelagic ocean fish; principal domestic landings Miyagi (Kesennuma), Wakayama, Kanagawa; **heaviest-flesh kajiki species — paler-flesh than makajiki, closer color to maguro (tuna)**; widely sold under 'kajiki-maguro' commercial name; defining ingredient for **kajiki-jerky and kajiki-smoke** premium specialty |
| Typical functions | Sashimi — paler-flesh kajiki sashimi, Steak preparation, Smoked kajiki premium specialty, Kajiki-jerky retail, Foodservice supply |
| Regulatory status in Japan | Standard food labeling. **Origin disclosure.** **Fish JAS-recommended-disclosure allergen.** **Mercury MHLW pregnancy-advisory: limit kajiki to 80g/week.** |
Kuro-kajiki (くろかじき / 黒梶木) is black marlin (Istiompax indica) — heaviest-flesh kajiki species, paler-flesh than makajiki. Sashimi, steak, smoke, jerky applications. **Mercury MHLW pregnancy-advisory: limit to 80g/week.**
Classification
Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.
Product applications
Functions
Regulatory tags
Origin
Used in (typical product categories)
Finished-product categories that commonly include this ingredient in Japanese-market formulations.
- Fresh kuro-kajiki sashimi-grade retail
- Frozen fillet B2B (foodservice steak channel)
- Smoked kuro-kajiki specialty
- Kajiki-jerky retail
What it is
Istiompax indica / Makaira mazara black marlin (NOT a tuna despite 'kajiki-maguro' merchant name).
Typical uses in Japanese products
Sashimi paler-flesh kajiki.
Steak preparation.
Smoked kajiki specialty.
Kajiki-jerky retail.
Foodservice supply.
For OEM: sashimi-grade retail, frozen fillet B2B, smoked specialty, jerky retail.
Regulatory classification in Japan
Standard food labeling.
**Fish JAS-recommended-disclosure allergen.**
**Mercury MHLW pregnancy-advisory: limit to 80g/week.**
Regulatory classification in other markets
| EU | **Fish EU-mandatory allergen.** Mercury monitoring. |
|---|---|
| USA | Fish allergen disclosure. **FDA mercury advisory — pregnant women avoid marlin.** |
| China | Premium import market. |
| Korea | Premium import market. |
Example products
Example finished products will be added after verification.
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From the same origin
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References
- MEXT Standard Tables of Food Composition — くろかじき
Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.