The mayor said in his weekly WOR Radio show Friday that "a vast percentage" of the marchers were union members who "had organized signs and leadership."
Bloomberg said the protest "was just an opportunity for a bunch of unions to complain or to protest, or whatever they want to do."
He said, "it really wasn't the protesters that have been in Zuccotti Park or that you see around the country."
The mayor also said that of the roughly 250 people who were arrested in Thursday's protests, three were charged with felonies. He says 80 were charged with misdemeanors and the rest were given summonses or desk tickets.