l don't think clams are a preferred bait or food for bluefish. not too sure about stripers either. but stripers do pick up nightcrawlers off the bottom in fresh water, so who knows?
l really believe you would have much better luck casting lures such as bucktails and diamond jigs or large kastmasters.
like this:
http://www.cabelas.com/prod-1/0030573315…
or this:
http://www.cabelas.com/link-12/product/0…
and here's some info from BPS:
http://www.basspro.com/webapp/wcs/stores/servlet/CFPage?mode=article&objectID=30990&storeId=10151&catalogId