Katsuura Tuna AuctionAudio Guide
Experience the authentic Nachi-Katsuura
Tuna Auction Market through immersive audio storytelling.
Discover unique chapters covering the rich history,
culture, and traditions of this famous market.
Experience the authentic Nachi-Katsuura
Tuna Auction Market through immersive audio storytelling.
Discover unique chapters covering the rich history,
culture, and traditions of this famous market.


Start your journey in the beautiful port town of Katsuura, where the day begins with the bustling energy of the tuna market.
Chapter 1


Follow the path to the famous tuna auction market and discover what makes this place so special.
Chapter 2


Learn the essential guidelines and key things to observe when visiting the tuna auction market.
Chapter 3-1

Discover the three main types of tuna and learn how to distinguish between them like a professional buyer.
Chapter 3-2

Understand the significance of different colored hats and the important roles each person plays in the market.
Chapter 3-3

Learn the five critical factors that professional buyers use to assess tuna quality and value.
Chapter 3-4

Meet the dedicated staff who work behind the scenes to keep the market running smoothly every day.
Chapter 3-5

Experience the tension and strategy of the sealed-bid auction system used for the highest quality tuna.
Chapter 3-6

Discover the role of the auctioneer and the significance of the auction stands in the market process.
Chapter 3-7

Follow a tuna's journey from ocean to market and understand why freshness is absolutely critical.
Chapter 3-8

Learn to read the mysterious marks and scars on tuna that tell the story of their life in the ocean.
Chapter 3-9

Continue your journey to the next stop and discover more secrets of the tuna trade.
Chapter 4-1

Meet the black kites, the clever birds that have become an integral part of the market ecosystem.
Chapter 4-2

Arrive at your second destination and explore the famous Tunagood processing facility.
Chapter 5-1

Learn about record-breaking tuna catches and what makes some tuna grow to enormous sizes.
Chapter 5-2

Discover more stories of giant tuna and the skilled fishermen who catch these ocean giants.
Chapter 5-3

Uncover the surprising truth about what "fresh tuna" really means in the industry.
Chapter 5-4

Learn about the aging process that transforms good tuna into exceptional, restaurant-quality fish.
Chapter 5-5

Discover the traditional longline fishing method that produces the highest quality tuna.
Chapter 5-6

Learn how Katsuura transformed from quantity-focused to quality-focused fishing and changed its destiny.
Chapter 5-7

Receive a personal message from Stella, your guide, as your audio tour comes to an end.
Chapter 6