I hope you got a fishing license as you are required to in order to remove them from the waters.
http://www.associatedcontent.com/art...ts.html?cat=17
By the way, being that clams, bivalves, mussels, and the such are all filter feeders and tend to absorb all the metals and trash that is in our water depending on where you collected them, it is not wise to place them in your aquarium without knowing that they may have an ill effect in your system. Notice that Saltwaterfish notes that they are FARM RAISED.