Sunday, October 6, 2013

Warmer Oceans Could Raise Mercury Levels in Fish

10/6/13

Should the temperature of the ocean's surface rise, fish would be accumulating more mercury. This would be horrible for sea food fanatics. Researchers have not known how global warming can effect rising mercury levels in aquatic life until now, nor has there been any experiments on the matter.
The mercury can be released into oceans and streams from industrial pollution. This can be converted into methylmercury in the water.
Scientists have examined killifish in varying temperatures in salt water marshes and in the lab. The fish in the lab ate mercury-enriched food whereas those in the salt water marshes ate natural food sources such as worms and insects.
Results showed that the fish in higher temperature waters consumed more food but grew less and had a higher measure of methylmercury in their tissues.



There is a major concern of eating seafood while pregnant but studies actually show that children of the 90's whose parents have eaten seafood while pregnant have higher IQ's and better eyesight.

Website: http://www.sciencedaily.com/releases/2013/09/130930211701.htm

Picture 1:http://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/MercuryFoodChain-01.png/515px-MercuryFoodChain-01.png

Picture 2: http://www.sciencedaily.com/releases/2013/10/131003162953.htm

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