Ya, without a doubt tadpoles. You won't see bass in very large schools like that. The bass are starting to hatch and will finish soon I'm sure.
Hey Chris, I'm not sure how you know without a doubt that their tadpoles without some sort of photo/video evidence. It could be a number of species that tangerineman noticed.
And yes Bass fry can be in large schools until they become green and then they disperse from the nest area. This of course depends on temperature/ silting of the redd and predation of eggs.
Here's a good link to a PDF on Smallmouth Bass http://www.mnr.gov.o...prod_095205.pdf
Hey tangerineman here's vid of Smallmouth Bass fry just last week here in Ontario, did they look anything like the fry in the video?