why are some Japanese seafoods served ALIVE?

Every Klingon knows that gagh is best when served live.

The key to why the Japanese eat what they do is the word "freshness". They don't eat raw fish because it's raw, but because it is fresh.

The same applies to live catches although the 2 examples you listed are the only ones that I'm aware of and probably stemmed from pre-modern times when fishermen would eat some of their catch while out on the ocean. They could not build a fire nor would it have made any sense to wait until the catch dies, so it is consumed lived.

It's just another matter of difference of perception coming from how people were raised.

And it's not a matter of wrong or right to eat seafood alive, raw or dead.

Eating fish as fresh as possible has been our(japanese) near obsession for centuries. During Edo period, some fish mongers used to sell fish alive from barrels. But in 1700, then Shougun prohibited it saying it's too cruel. We have long history of eating fish alive or fresh.

Because Japanese don't have any religious taboo on any live seafood to be served but rather know the fresh taste is better sometime somehow on some of them much more than same dead/raw ones cooked.

People usually taste them with appreciation and respect for nature. Dead or alive, it doesn't matter to dining but matters how it looks, smells, cooks, tastes good or not instead for standard Japanese.

Nobody can complain agaist such individual even weired culture out of narrow own mind. They are not Christian, Jew or Muslim mostly.

That's gross. Never come across anything like it myself though, despite having racked up about 5 or 6 years living here on and off.

I've come across videos of similarly disgusting things from other countries though, and did you know that people from your country eat living oysters?

Perhaps you should ask another question, why are some seafoods served alive? Ask it in one of the food categories and I'm sure you'll get lots of horrified people answering. Maybe even some more videos to watch as you seem to make a habit of watching such disgusting things.

Addition, the person above me who claims that Japanese kill sharks for the fins obviously doesn't know his a*se from his elbow, or more to the point he doesn't know what he's talking about, or which country is which on this planet.

no it isn't unusual to be served seafood still moving.

the chef does it for 2 reasons, to show the customer it's fresh and to show his skill.

from my person experience the live seafood doesn't taste as good, this is probably because it is kept in a tank, often at or near the entrance, sometimes for weeks until a customer selects that creature for dinner so it loses some of it's natural taste while being artificially reared.

other things include squid tentacles that are still moving.

To freak out the foreigners

Why some foreigners serve oysters that are still alive?

why, the edible part is separated from other part of the body that shows a living animal. people all over the world regardless of their own credo, culture, social status, do this kind of thing, which is eating some parts of the animal's body while it is still alive. for example, people biting their nails, people eating their won fresh around nails. what are they? are their nails so fresh its delicious or something?

I am cat and eat fish alive sometime.

But, Nobody blame me for that.

If you don't blame me, Don't you blame some Japanese people for eating seafood alive.

I wish the world will be a more peaceful place.

It's just culture.

Bible says God created animals for our nutrition. Any animal is the same.

No difference between chicken or hamburger.