Caring for clams found in the Columbia river(Portland, Or)

These mussels are filter feeders so they need algae in the water. They dont
do well in warm water (ie 75 degrees or more). If you have crystal clear
pond water they aren't gonna make it because there wont be any food for
them. They reproduce by shooting their "stuff" into the water. The "stuff"
attaches to the gills of fish. The fish swim around and eventually the
babies fall off of the fish and land in a new place.

"Curious" wrote in message
om...
Hello World,
I recently went to a beach on the Columbia river with my 7 year old
son. We were trying to make a sand castle when he came across several
small clams. He proclaimed himself the luckiest boy on the planet and
immediately asked if he could keep them. I, of course, answered yes. I
do not know how to care for these creatures. I've placed them in a
bowl of water and sand that I brought back with us from the Columbia
river. Is there any other things that I should consider. Thanks for
any advice.

-Dee