By : Emily Main
The nonprofit Food and Water Watch looked at all the varieties of fish out there, how they were harvested, how certain species are farmed, and levels of toxic contaminants like mercury or PCBs in the fish, as well as how heavily local fishermen relied upon fisheries for their economic survival. These are the 12 fish, they determined, that all of us should avoid, no matter what.
Eat This Instead: If you like the taste of eel, opt for Atlantic- or Pacific-caught squid instead.
Eat This Instead: If you really love caviar, opt for fish eggs from American Lake Sturgeon or American Hackleback/Shovelnose Sturgeon caviar from the Mississippi River system.
3. Atlantic Cod
Eat This Instead: The good news, if you love fish 'n' chips (which is nearly always made with cod), is that Pacific cod stocks are still strong and are one of Food and Water Watch's best fish picks.
4. Imported Catfish
Eat This Instead: Stick with domestic, farm-raised catfish, advises Marianne Cufone, director of the Fish Program at Food & Water Watch. It's responsibly farmed and plentiful, making it one of the best fish you can eat. Or, try Asian carp, an invasive species with a similar taste to catfish that's out-competing wild catfish and endangering the Great Lakes ecosystem.
5. Imported Shrimp
Eat This Instead: Look for domestic shrimp. Seventy percent of domestic shrimp comes from the Gulf of Mexico, which relies heavily on shrimp for economic reasons. Pink shrimp from Oregon are another good choice; the fisheries there are certified under the stringent Marine Stewardship Council guidelines.
6. Atlantic Flatfish
Eat This Instead: Pacific halibut seems to be doing well, but the group also recommends replacing these fish with other mild-flavored white-fleshed fish, such as domestically farmed catfish or tilapia.
7. Atlantic Salmon (wild-caught & farmed)
Eat This Instead: Opt for wild Alaskan salmon now, and in the event that GE salmon is officially approved.
8. Imported King Crab
Eat This Instead: When you shop for king crab, whatever the label says, ask whether it comes from Alaska or if it's imported. Approximately 70% of the king crab sold in the U.S. is imported, so it's important to make that distinction and go domestic.
Eat this instead: Among the recommendations for shark alternatives are Pacific halibut and Atlantic mackerel.
10. Orange Roughy
Eat This Instead: Opt for yellow snapper or domestic catfish to get the same texture as orange roughy in your recipes.
11. Atlantic Bluefin Tuna
Eat This Instead: If you really can't give up tuna, opt for American or Canadian (but not imported!) albacore tuna, which is caught while it's young and doesn't contain as high levels of mercury.
12. Chilean Sea Bass
Eat This Instead: These fish are very popular and considered a delicacy, but you can get the same texture and feel with US hook-and-line-caught haddock.
Source : http://health.yahoo.net