When I was a wee lad, we used to eat tinned 'tunny fish', caught in the North Sea. Tasted great.
Then they were fished out, and we ate tinned 'tuna' instead, caught not in the North sea but more exotic waters. Came in varieties like 'skipjack', 'yellowfin' and 'bonito'. Not as nice as tunny, we thought, but we got accustomed to the new stuff, and now I can't remember what tunny tastes like - must be 45 years since I ate any.
If this site is right, we were actually eating Northern bluefin tuna - and it's now a critically endangered species.
This is a public information post.
Because of course
6 hours ago