5. Eel
Eel fish
This is one fish you may want to avoid on the sushi menu. Eels are slow to mature and have been overfished in many parts of the world, causing some populations to collapse. This is problematic because eels play an important role in spreading mussel populations, which act as natural water filters [7]. Additionally, eels absorb and store harmful chemicals and pollutants very easily. This is such a problem that in some areas residents are advised to eat eel no more than once per year [8].
6. Imported Basa, Swai, Tra, Striped Catfish
Imported Basa, Swai, Tra, Striped Catfish
In many cases, these fish are simply labeled “catfish”, and should be avoided. A 2016 study found that seventy to eighty percent of these fish were contaminated by Vibrio Bacteria, which is what causes most cases of shellfish poisoning [9].
7. Imported Farmed Shrimp
Imported Farmed Shrimp fish
There are a number of pesticides that are used globally in shrimp production. All but one of them are banned in the United States. On top of that, these shrimps have often been treated with large quantities of antibiotics, and so any time you handle these raw shrimp you run the risk of being infected with antibiotic-resistant bacteria [19].
Read More: The Atlantic Ocean Could Be Swallowed by a Terrifying ‘Ring of Fire’
8. Imported King Crab
Imported King Crab
Around three-quarters of all crab sold in the United States is imported from Russia, where unsustainable fishing practices are very common. Technically, the only crab that was caught in Alaska can be called “Alaskan King Crab.” However, mislabelling is incredibly common, so it is important to know where your crab is coming from. If it says “imported” and “Alaskan” on the label, something is amiss and you should stay away [10].
9. Orange Roughy
Orange Roughy fish
These fish can live for several decades and don’t typically reach sexual maturity until they’re at least twenty years old. They are another species that have been overfished, but because of their very slow reproduction cycles, they have an extremely difficult time recovering [11]. Orange Roughy is also known to have high levels of mercury [7].
10. Shark
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