It's extremely low level tritium and the oceans are massive! This release will have nearly no impact and will at worst temporarily raise the area above average background radiation. That fish will deliver less radiation than the ambassadors flight from Washington to Tokyo.
Lmao my favorite thing about this is that I cannot tell whether it's something somethint a pro-nuclear person made ironically, or something an anti-nuclear person made in earnest
To add to this Tritium is pretty safe all things considered. I've carried a tritium vial in my pocket for the last 13 years without issues (till it broke the other day :( ) Tritium can't even penetrate your skin with its low level of radiation and in the environment has a half life of roughly 3 days.
Not understanding nuclear isn't a good reason to be afraid of it. Radiation is absolutely dangerous in some forms....but a sun burn is just a radiation burn and we still aren't applying sunscreen.