Line-caught tuna is the ethical and flavorful choice.

Yes, there’s a clear difference in both ethics and flavor, and it goes in the same direction: line-caught wins.

Ethically, line-caught tuna is the clear winner. It targets specific fish, avoids bycatch like dolphins and turtles, and doesn’t use massive nets that scrape the ocean floor or “fish aggregation devices” that lure entire schools to their death. Farmed tuna is better than some industrial fishing (like longlining or purse seining) but still has its own problems: food waste, concentrated waste, antibiotic use, and the fact that many “farmed” tunas are actually wild-caught juveniles fattened in pens. If you care about ocean health, line-caught is the choice.

Flavor-wise, line-caught is also better — but the gap isn’t huge. The fresher and leaner line-caught tuna has a cleaner, more distinct taste and firmer texture. Farmed tuna (especially bluefin) can be rich and fatty because they’re fed that way, which some people prefer. But that richness often comes with a slightly muddy, less crisp flavor. If you’re eating it raw (sashimi or poke), go line-caught. For a seared steak, either works, but line-caught will taste more like tuna.

But here’s the rub: line-caught tuna is expensive and harder to find. If you’re on a budget or at a regular grocery, farmed or even simple canned “chunk light” skipjack (which is pole-and-line caught more often) is a decent alternative. Just check the label. “Pole and line” or “troll caught” are the terms to look for. “Dolphin safe” is a weak claim — many dolphin-safe labels still allow destructive methods.

Bottom line: if you can afford it and care about the ocean, go line-caught. If not, skip the farmed bluefin and buy skipjack from a reputable brand. Future you and the planet will thank you.