Farmed and Atlantic Salmon from The 10 Worst Fish to Eat Slideshow

The 10 Worst Fish to Eat Slideshow

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Farmed and Atlantic Salmon

Farmed and Atlantic salmon are some of the worst fish for the environment (and you) and should be eaten sparingly. Try canned or wild salmon from Alaska instead.

Flickr/Lazlo-photo

Grouper

All grouper is bad for the environment and even though it doesn't have the highest mercury levels compared to other fish, it's still not recommended for young children and older kids.

Flickr/U.S.Fish and Wildlife Service Mid-West Region

Sturgeon

Imported wild sturgeon and Atlantic sturgeon should not be eaten because of their high levels of mercury and PCBs and because they're on the EDF's list of the worst fish for the environment.

Flickr/Stormydog

Shark

Scary to look at and scary to eat. Sharks are filled with high levels of mercury, as they are one of the ocean's biggest predators. Plus, they are also on the eco-worst list. Our advice? Avoid them as much as possible.

Flickr/freecat

Swordfish

These scary looking fish are full of mercury and any imported ones should definitely be avoided. Swordfish from the UK are OK eco-wise, but still not great.

Flickr/Isgcp

Flounder

Most sole sold in supermarkets is actually a variety of flounder (except for the expensive Dover sole). And it is a fish to avoid because it's high on the PCBs and mercury list, and is also an eco-unfriendly fish.

Flickr/Mccun934

Chilean Sea Bass

All Chilean sea bass (also known as Patagonian toothfish) is harmful for the environment and not so great for you (even though it can taste so good).

Flickr/theEcoBoss

Tuna

Bluefin and bigeye tuna are on the eco-worst listplus they have high levels of mercury — it might be a good idea to cut back on those spicy tuna rolls.

Check out this sushi guide to find a good substitute.

Flickr/foodgroup

Walleye

This freshwater fish can be found in most of Canada and the northern parts of the United States -- but if you find it, try and walk away. The EDF places it high on its PCBs and mercury list, and it's not great for the environment either.

Flickr/alibabacom

Weakfish

Though it's the state fish of Delaware, weakfish (also sometimes referred to as sea trout) is not a fish that should be enjoyed often — it's bad for the environment and bad for you.

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The 10 Worst Fish to Eat Slideshow