She also demonstrated the hand gestures used by wholesalers to signal the price they want to pay for the fish. This helped me understand later as we watched an auctioneer sell a type of tuna called bigeye in seconds for several hundred dollars each.
At 5.25am, market officials hustled us through the bustling market, with giant trucks delivering and picking up supplies, the turret trucks careening wildly about in the dark and swarms of busy workers moving their products.
The market also auctions shellfish, blowfish and fresh, unfrozen tuna. But the frozen tuna auction is the only one open to tourists. Visits are tightly controlled, apparently due to complaints in the past about interference from unruly visitors.
In a large warehouse, hundreds of whole tunas frozen rock-solid to about minus 60C lie on the concrete, sorted by type of fish. Labels on the side of the fish carry seller information, weight of fish and where it was caught. They come from all over the world, including from fishermen working out of Cape Town, Sydney, Tahiti and Boston.
We watched as buyers carefully inspected the fish, shining a flashlight at the meat exposed by a flap sliced into the side of the fish near the tail. Buyers inspect the fat content and quality of the meat to decide on the value of the fish.
The most highly prized are the bluefin tuna, which can weigh well over 280kg. Those giant fish filled one side of the large warehouse, while smaller bigeye and yellowfin filled the other.
"We Japanese people love bluefin tuna. It contains more fat than other tuna,'' said Yoshimura. She waved over a fish wholesaler and he showed off what looked like a motorcycle number plate attached to a worn baseball cap. Each buyer wears a tag, which enables the auctioneer to keep track of sales.
Asked if the sight of so many tuna made him hungry, the buyer, Shiro Kamoshita, chuckled.
"I love eating the tuna, but it is business. I save the best for my clients,'' he said, as Yoshimura interpreted.
Quickly, the auction got under way, with a brown-capped man ringing a bell and climbing on a step stool near the bigeye tuna. Tourists craned their necks to watch and quickly snapped photos. One tourist using a camera with flash was quickly taken to task.
It only takes seconds for each fish to sell, as buyers flash hand signals to show the price they will pay. Within minutes, the bigeye were sold and buyers were daubing paint on the sides of their purchases. As gaffe-wielding workers hauled the frozen fish away, market officials herded the first group of tourists out and the second group headed in to see the bluefin auction.
After the tuna auction, tourists often catch a sushi breakfast at tiny restaurants on the market grounds. A key to picking the right spot is eyeing the number of patrons wearing black rubber knee-high boots. If the market workers frequent an establishment, it has to be good. The restaurants line narrow streets, and it's possible to walk in the alleyways behind the restaurants and watch the food prepared in the kitchens, which are open to the alley.
At 9am, the intermediate wholesalers market opens to visitors. It is a riot of colours and action, with workers filleting giant tuna with long sword-like knives, others using band saws to cut up the rock-solid frozen fish, sellers arranging amazingly precise displays of every type of sea life (both live and dead) imaginable and throngs of buyers and workers moving seafood through the market.
And, incredibly, the air is fresh, with little smell of fish. It's an indication of just how quickly the fish move through.
Chances are any visitor to Japan will eat a huge variety of seafood during the stay. A visit to Tsukiji lets tourists see the incredible logistics that deliver that food to the plate.
IF YOU GO:
TSUKIJI FISH MARKET: 5-2-1 Tsukiji, Chuo-ku, Tokyo. Guidelines for visitors: shijou.metro.tokyo.jp. First come, first served, daily, with lines forming for registration well before 4.30am.
TOURS: Institute for Japanese Culture Experience & Education offers guided tours of the Tsukiji fish market auction in English, ¥21,000 for one person, ¥9000 per additional person. Includes sushi breakfast at onsite restaurant. Not available Wednesdays, Sundays or holidays; check schedule online. Reservations must be made in advance but there are cancellation fees.
- AAP