Tuna Day (Maguro no Hi)

What Is Tuna Day?

October 10th is "Tuna Day." It's based on the tradition that on this day in 726, the poet Yamabe no Akahito, accompanying Emperor Shomu on a journey to the Akashi area (in present-day Hyogo Prefecture), composed a poem praising the region's thriving tuna fishery. The poem is included in Book 6 of the Man'yoshu, Japan's oldest poetry anthology. The anniversary was established in 1986 by the National Federation of Japan Tuna Fisheries Co-operative Associations.

Why Is October 10th "Tuna Day"?

A poem by Yamabe no Akahito in Book 6 of the Man'yoshu describes fishing boats busily heading out to catch "shibi" (an old word for tuna). The day it was composed is said to correspond to October 10 on today's calendar, and the anniversary was established to encourage people to eat more tuna.

• Man'yoshu connection: The day in 726 when Yamabe no Akahito is said to have composed his poem about tuna fishing in the Akashi area.
• Established in 1986: By the National Federation of Japan Tuna Fisheries Co-operative Associations.
• Purpose: To spread awareness of tuna's appeal and the culture of tuna fishing.

What Is Tuna?

Tuna is an essential fish in Japanese food culture, used in everything from sashimi and sushi to a wide range of other dishes.

• Main species: Bluefin tuna, southern bluefin tuna, bigeye tuna, yellowfin tuna, albacore, and more.
• Characteristics: Flavor varies by cut—lean meat (akami), medium-fatty (chutoro), and fatty (otoro).
• Fishing methods: Pole-and-line, longline, and purse seine fishing.

The Appeal and Nutrition of Tuna

Tuna is prized not only for its flavor but also for its high nutritional value.

• DHA and EPA: Essential fatty acids that support overall health.
• High in protein: An important nutrient source for building the body.
• Iron: Lean (akami) tuna is rich in iron.

Interesting Facts About Tuna Day

• "Shibi," an old name: In the Man'yoshu poem, tuna is called "shibi" (鮪).
• Japan's tuna culture: Japan is one of the world's largest consumers of tuna.
• The first auction of the year: The first tuna auctions of the year at the Tsukiji and Toyosu markets attract attention every year.
• Sustainability: Resource management and sustainable fishing practices have become increasingly important in recent years.

Tips for Enjoying Tuna Day

• Visit a sushi restaurant or seafood bowl shop and compare lean, medium-fatty, and fatty cuts.
• Learn about the fishing methods and history behind tuna.
• Try making tuna steak or a marinated tuna rice bowl at home.
• Look for fresh tuna at your local fish market or seafood shop.

A Day to Feel the Bounty of the Sea and the Work of the People Behind It

"Tuna Day" on October 10th is a chance to savor the appeal of tuna, a fish that's central to Japanese food culture. Enjoy its seasonal flavors and rich history.