You have two main choices after catching an endangered fish in The Sims 4: you can keep it and get in trouble for that or release it back into nature.
If you have Get Famous installed, your Sim’s reputation will increase after releasing endangered fish back into the water. This will help you become famous quickly.
At the same time, townies will support your choice of releasing the fish and interact in a friendly manner with your Sim.
If you decide to keep an endangered fish in your inventory, your reputation will drop. Nearby Sims will give you a frown of disapproval. Some may even be mean to you.
You can use Bluefin Tuna to cook Tuna Maki Roll
If you have both Island Living and Snow Escape, you can cook Tuna Maki Roll.
This recipe requires catching Bluefin Tuna from Sulani. You can’t cook this meal with regular tuna.
The problem is that the Bluefin Tuna is an endangered species.
Yes, you read that right, you need to use an endangered species of fish for this particular recipe.
In other words, if you want your Sim to eat Tuna Maki Roll, you have no choice but to keep the Bluefin Tuna in your inventory.
Adding endangered fish in an expansion pack (Island Living), and requiring players to use it for a recipe in another pack is pretty confusing.
But it’s pretty realistic. The world isn’t all sunshine and roses.
Greed pushes people to catch and consume endangered fish in real life and the devs probably wanted to capture this behavior in the game.
The Sims 4 simply gives you that option. It also lets you play in a way where you don’t catch endangered fish. You can also get fish without fishing.
The choice is yours.
If your Sim is an aspiring master fisherman, they’ll probably want to mount endangered species of fish on the wall despite any consequences that could happen.
Fishing is their favorite activity and they’re extremely happy when catching rare fish.
Happy Simming!