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Primarily it's due to contaminents in bodies of water, whether in oceans, lakes, streams, etc. The majority of this pollution comes from manufacturing or agricultural industries either through dumping contaminents illegally or through the process of run-off, i.e. crop dusting plans spray crop fields with herbicides and the chemicals drain into lakes, streams, etc after it rains. From a manufacturing standpoint, the Mercury is released through smoke stacks, and when it rains, the rain carries the Mercury into the lakes, streams, oceans, etc. Bacteria convert the Mercury into a form that is easily absorbed by small insects and other organisms. When fish eat these, they absorb the Mercury. When a bigger fish eats a smaller fish, it absorbs it's Mercury as well and this is how it moves up the food chain to humans.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoI belive they do, not a 100% about that. But I do know that dolphins and whales have to much in them for humans to eat, you can suffer from mercury poisoning.
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Can you eat cat fish if your pregnant?
Yes. Cat fish and essentially all freshwater fish have minimal levels of mercury.
Do fish have a lot of mercury in it and can affect your pregnancy?
mercury = pregnant = fish
What is the main source of fish in the us?
The main source of fish is the Mercury fish. The Mercury fish is a tainted fish found widely in the US streams.
How much fish with mercury should you eat?
it doesnt matter all of the fish you've eaten have contained mercury so just eat and dont worry about the fishes diet! :p
Does dori fish contains Mercury?
If the fish is in a mercury- contaminated water. >>none for mercurium!
What is the food that is most likely to contain mercury?
Swordfish, tilefish and shark are amongst the highest. Larger, predatory fish tend to have higher levels of mercury than small herbivores, since they accumulate all the mercury their prey has consumed.shark!
Explain what Mercury in a fish is?
In some places in the world, mercury is pumped into the ocean as a byproduct of industry. This mercury is then consumed by fish, poisoning the fish. The fish are caught by fishermen and consumed by people, creating a wide range of problems due to the toxic nature of mercury.
What type of fish has the most mercury?
predatory fish, Mercury, once ingested never leaves the body, so it is concentrated in the bodies of fish that eat other fish.
What substance bioaccumulates in fish?
Mercury bioaccumulates in fish.
What seafood should be avoided due to mercury?
Large predator fish, because they eat smaller fish and the mercury accumulates in the larger fish.
Is eating fish everyday good for health?
Fish is good for you but can also contain high levels of mercury and PCB's. Many websites offer analysis's of mercury levels in fish, just search fish + mercury in Google. Fish like tuna and swordfish can contain very highlevels of mercury. I wouldn't go out of your way to eat fish everyday, but make sure you get at least 2 servings of oily fish a week
Is Mercury found in fish?
maybe
