I had the same question and this is the answer I received from the Virginia Department of Health:
Although there are no current emergency closures at this time for the James River there are current condemnation for the James and its tributaries that exist. Emergency closures are reserved for events such as heavy rainfall, sewage/sewer bypasses and other temporary events that can effect water quality. The current condemnations can be found on the web page and are accompanied by maps.
(http://www.vdh.Virginia.gov/EnvironmentalHealth/Shellfish/closureSurvey/index.htm)
Current condemnations are based on bacteria (fecal coliform )levels in the water samples. We do send clam samples to the state lab couple times a year for heavy metal testing but do not do this routinely. Clams would be considered safe from any area that is currently open by the VMRC and that is not in a condemned area. There is always a risk in eating shellfish,even from open areas, if eaten raw or undercooked.
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yes not river dolphins though
The same they eat in the seas clams or fish i think
dolphin eat fish and things like that! xx hope i helped you out :)
Insects gold fish fishes blood minerals in the water
They will eat fish, freshwater shellfish, crayfish, clams, etc.
Creek clams eat small plants, algae and tiny animals. They filter the food from the water. Clams are a good addition in a fish tank as they can filter the tank's water.
Yes, they love it.Clams are also good to eat!^_^
No. They don't eat clams and rocks!
Some animals that eat clams are crabs, snails, monkeys, too.
A good meal for a long trip are noodles, boiled eggs, sandwiches and clams or blood clams.
No, clams are animals.
you should eat freshwater clams/oysters