Mercury is it posiness if so shloud we have fish & what fish have high and low rates of mercury on their meat?

Question

think the ones who accerts the most wins

Answer 1

When a fish eats another fish, the mercury is concentrated in the tissues of the predator fish. So fish higher up the food chain, like shark and tuna have the most mercury. So do salmon raised on fish farms, because they are fed on fish meal. Fish that eat algae and plants, and fish that feed on the surface, as a general rule, contain the least mercury. And avoid fish caught in waters polluted with heavy metals from industrial effluent. Minamata disease is mercury poisoning. It was caused by people in the Japanese fishing village of Minamata eating fish they'd caught locally in polluted waters. If you buy your fish in a supermarket where it comes from all over, this is less likely to happen.

Answer 2

First, any fish you by in the store has been tested for a variety of things and is safe from mercury. Mercury is poisonous and you can die from eating too much fish with mercury, but it takes a lot of years for that amount to accumulate in your system. If you want to eat fish you catch the ocean, you have nothing to worry about regarding mercury (but you should read up on a disease called red tide). Mercury in fish comes from acid rain. The acid rain falls on lakes surrounded by granite and all granite has mercury in it. The acid rain dissolves the granite, the mercury leaches into the lake and makes it's way into the food chain. States publish the names of lakes that may have mercury problems. However, the bigger the fish, the longer it has had to accumulate mercury in it's system. For this reason, if you want to be safe eat the smaller but still legal sized fish. It is still safe to even eat big fish that have some mercury in them if you only eat them once or twice a year. However, some fishermen and their small children have died from mercury poisoning because they used the fish they caught in a "mercury" lake as an almost daily part of their diet. But it takes three things, 1) acid rain 2) a lake that is surrounded by granite, 3) eating a lot of lake fish on a regular basis. The problem with mercury poisoning is that it is cumulative. Once you eat a little, it never comes out of your body, so you can't depend on not eating fish caught from a "mercury" lake for awhile to wash the mercury from your system.

Answer 3

Mercury is a heavy metal. Toxic levels of metals cause birth defects and, in children and mature adults, causes neurological failure, and brain damage.

Mercury is trapped in the flesh of filter feeders, which are eaten by higher life forms in the food chain.

Being at the top of the food chain, we eat the concentrated toxins, including mercury.

Some creatures that we eat, do not eat so much of the lower life forms that have high levels of mercury in them, so the concentration is lower and we ingest less mercury.

Tuna is one fish that can contain high levels of mercury.
You should research for more information on google.com with the search words 'mercury' and 'minimoto disease'.

Answer 4

The general rule is, the bigger the fish, the more the mercury. Also, oilier fish have higher mercury levels. High levels of mercury are found in swordfish, albacore tuna, mackerel. See http://www.webmd.com/content/article/102/106692.htm

Answer 5

Yes, it is poisonous. The level will depend on the fish type.

Here is a good advisor from the FDA

http://www.cfsan.fda.gov/~dms/admehg3.html

Answer 6

that stuff causes cancer and wicked birth defects i know tuna does and sward fish no we really should try to avoid mercury at all costs but hell its hard to lay off the tuna sushi

Answer 7

older fish have more mercury

Answer 8

NO..
IN FACT OUR LUMBER RIVER IN ROBESON COUNTY NC.
HAS FISH MERCURY HIGH LEVELS WARNINGS. AVERAGE HEALTHY ADULT
EAT NO MORE THAN 5 BASS PER MONTH.. AND YOUNG CHILDREN AND PREGNANT WOMEN OR SICKLY ADULTS-NONE---

Answer 9

the mad hatter from alice in wonderland
mad because of mercury cured leather.

Answer 10

http://www.cfsan.fda.gov/~frf/sea-mehg.html

you have to consume an excessive amount of fish each day for the levels to become toxic