That's what's called a "literary device": a single individual is used as a microcosm for the whole. The story is about "Amelia" where "Amelia" represents all bluefin tuna. In that sense, the story is about Amelia.
It's something that might not be clear to people for whom English is not their first language, but it's pretty common in literature.
I've scrabbled together a pot roast recipe I follow loosely that gets praised every time I make it. I get a chuck roast (or something similar), evenly coat in salt and pepper to taste, saute it in the insta pot(about 6-7 minutes each side to brown it), deglaze with red wine vinegar, then put in half a small package of carrots and little red potatoes(onions can be added but nobody likes them here). I also add 2-3 pepperoncinis on this bottom layer, then I put the roast back in, put the rest of the carrots/potatoes/another couple of pepperoncinis on top and around. Then I add a cup of water and beef bullion, and set the pressure cook feature to around 1 hour 10 minutes or so. I use the keep-warm mode and while it's ready to go once the main pressure is done, it just gets better over time (and you can do it before leaving for work and come home to lunch or supper already waiting). I'm really lazy when it comes to cooking, but this has been easy, fast and delicious (plus leftovers!).
An even easier thing is shredded BBQ chicken. They can even be frozen and it's done in an hour. Would write the recipe but leaving for lunch now.
I do a very similar version, minus the pepperoncini. One thing that I've found can really take it up a notch is to add just a touch of soy/worcestershire sauce, maybe about 1/4 to 1/2 teaspoon of each. IMO it adds a nice savory background flavor.
I have a similar pot roast recipe, but I've found it comes out better in a slow cooker, or a dutch oven. I've never really been all that impressed with the results of the Instant Pot. Time savings? Even that depends - building and releasing pressure adds 40+ minutes to cook time.
