
You don’t get much more Japanese than an idol fishing for eel on the Dotonbori.
Being a TV personality on Japanese variety shows really involves enduring a range of experiences, with some good, like sampling fine cuisine, and some bad, like getting a pie in the face.
I’m not really sure where conducting marine biology research usually rates on that scale, but for Ken Kojima, the leader of Ae! group, an idol unit belonging to the Johnnys’ Jr. roster, it became a historic moment in the city of Osaka.
▼ Ae! group performing their single “Firebird” live
While filming a segment on the MBS variety show Kansai Johnny Haku, Kojima took part in a survey of Osaka’s famous Dotonbori River that runs through right the city’s downtown area. The idol joined members of the Osaka Prefectural Biodiversity Center as they set net traps to catch and catalog the populations of species.
However, when Kojima pulled up one of the net traps, he and everyone else present were shocked to see a Japanese eel (Anguilla japonica) inside.
▼ Footage of the captured eel
At first, you might be wondering why catching a Japanese eel in Japan of all places is such a big deal, but it really is. It’s very important to note that this eel was caught in the Dotonbori River that flows right by Osaka’s iconic Glico sign in a highly commercial area. As such, its water quality is widely considered to be somewhere between that of a mop bucket and the greasy stuff that log flume rides float on.
Its most notable biodiversity usually consists of the drunk people that jump in after major sporting events and a statue of Colonel Sanders that some drunk people threw in after a major sporting event. So, finding not only one but 11 Japanese eels there, like Kojima and the team did, is nothing short of amazing.
▼ The Colonel was retrieved from the river in 2010 after a quarter of a century
In fact, Kojima’s eel is the first one ever recorded to have been caught in the Dotonbori, even including past ecological surveys. Moreover, these eels are a predator species but are all healthy and appear to be well-fed, which strongly suggests that there is a whole ecosystem going on in the river for them to feed off of. In other words, the entire environmental quality of the Dotonbori river appears to be improving significantly.
Kojima seemed well aware of this upon discovering the eel and excitedly shouted upon his discovery, “Wow wow wow, hey! Johnny’s Entertainment!” which may very well go down in history as this generation’s “Mr. Watson, come here” or “Eureka!”
▼ News report showing the moment Kojima found the Japanese eel
It really can’t be stressed enough how uninhabitable the Dotonbori River has been considered to be, so this really is an epoch changing event. Even readers of the news online were shocked and in disbelief.
“I thought the Dotonbori was a terrible river, but I guess it’s become quite beautiful now.”
“I’m really happy to hear this.”
“So, maybe all those people who jumped in were eel fishing…”
“Haha! Kojima made the news! Congratulations!”
“It’s true. Now, when the sun hits the water, it’s so clear you can see all the trash at the bottom.”
“Colonel Sanders used to inhabit those waters too, but now he’s gone.”
“I remember them saying not to jump in because the water would make you sick.”
“That’s great, but I still won’t eat anything caught from there.”
It’s probably wise to continue refraining from eating anything out of the Dotonbori for the time being. The improvement is a very gradual process but for now appears to be well on the path to recovery. Besides, the Japanese eel is an endangered species so fishing them is prohibited and even the ones caught by Kojima and the others will be treated carefully to preserve and hopefully increase their numbers.
In the meantime, you can see what discoveries Kojima and the rest of Ae! group find on the Johnnys’ Jr. YouTube channel where they post weekly on Thursdays. Speaking of which, we really should push Japanese variety shows to get more Johnny’s groups to tackle other scientific breakthroughs. Maybe get Travis Japan working on a cold fusion reactor and 7 MEN Samurai studying images of distant nebulae from the James Webb Telescope.
Source: MBS News, YouTube/MBS NEWS, Hachima Kiko
Top image: © MBS via Johnny & Associates
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!

Boy band Ae! group brings their A-game to music, acting, science, welding, and more【Interview】
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
7 great places to see Mt. Fuji from without having to climb it
Pizza Hut Japan’s hot lucky bags are perfect for a New Year’s pizza party
Harajuku’s new permanent Tamagotchi shop is filled with cuteness and a surprising lack of poop
New Japanese menstrual product seeks to help women spot unidentified iron deficiencies
The 5 best Japanese bento to buy at Kyoto Station
Japan now has potato chip-covered chocolate, and it’s amazing!【Taste test】
Coffin meditation sessions being offered by Tokyo relaxation parlor
Japan’s new Pokémon donuts are here, so let’s eat Pikachu, Chansey, and some Poké Balls【Photos】
Starbucks Japan releases the new Soupuccino, but is it everything it’s cracked up to be?
7-Eleven Japan’s ramen-cooking robot whipped us up a bowl of noodles【Taste test】
Lacquerware supplier to emperor of Japan and Pokémon team up for new tableware
Cyberpunk anime meets traditional culture in Ghost in the Shell gold leaf Japanese changing screens
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Hello Kitty Choco Egg figures are an adorable trip through three periods of Japanese pop culture【Pics】
Japan’s otoshidama tradition of giving kids money at New Year’s gets a social welfare upgrade
Starbucks Japan releases new zodiac chilled cup drink for 2026
Can a dirty butthole make you filthy rich in Japan? We’re starting a New Year’s lottery experiment
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Nintendo’s Kirby now delivering orders at Kura Sushi restaurants, but not in Japan
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Sanrio theme park in Japan announces plans to expand into a Sanrio resort
Stamina-destroying “Paralysis Noodles” are Tokyo’s newest over-the-top ramen innovation
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Leave a Reply