The fish that taste the most fishy are those fish that are higher in fat which include salmon, mackerel, herring, anchovies, and sardines, have much stronger flavors than other fish.
Tilapia is the fish with the least fishy taste as the tilapia is arguably the mildest tasting fish there is. It's not fishy at all and has a mild sweetness.
Tilapia fish is easy to prepare and goes well with a variety of different flavor profiles.
When fish is not handled properly the fish can taste fishy.
Fish tastes "fishy" when it hasn't been handled properly.
Also ocean fish tend to rely on trimethylamine oxide (TMAO) for this purpose.
The problem is that when fish are killed, bacteria and fish enzymes convert TMAO into trimethylamine (TMA), which gives off the characteristic “fishy” odor.
This smell can be reduced in two ways.
The juices from the raw fish can transfer bacteria onto the cooked or ready-to-eat fish.
For frozen seafood, look for frost or ice crystals.
This is a sign that the fish has been stored for a long time or thawed and refrozen.
The healthiest fish to eat is Wild Caught Alaskan Salmon.
Other healthiest fish to eat include.
Sardines, Pacific (wild-caught)
Rainbow Trout (and some types of Lake)
Herring.
Bluefin Tuna.
Orange Roughy.
Salmon (Atlantic, farmed in pens)
Mahi-Mahi (Costa Rica, Guatemala & Peru)
The most unhealthy fish to eat is the Bluefin Tuna.
The Bluefin Tuna is healthy in moderation but it is high in mercury which makes it unhealthy when eaten in excess.
This, coupled with their exorbitant value in the sushi market, has led to severely depleted populations.
Bigeye and yellowfin, also known as ahi, are common in sushi. Both types, along with bluefin, are high in mercury and should be eaten infrequently, if at all.
Other fish that are considered the most unhealthy to eat include the King Mackerel, Shark, Swordfish and Tilefish.
All fish advisories due to increased mercury levels should be taken seriously.
This is especially important for vulnerable populations such as young children, pregnant or breastfeeding women, and older adults.
Other fish that are not considered very health include.
Chilean Sea Bass (aka Patagonian Toothfish)
Grouper.
Monkfish.
Orange Roughy.
Salmon (farmed)