Apr 12, 2007 — Fishermen, environmentalists and government scientists met yesterday in Burlington to talk about the future of Lake Champlain. The lake faces huge environmental problems -- from an invasion of zebra mussels to agricultural pollution to a new wave of shoreline development. But all sides agree that Lake Champlain's number one enemy is the dreaded sea lamprey. The eel-like parasite has contributed to the rapid decline of trout and freshwater salmon that once drew fishermen from all over the world. As Brian Mann reports, state officials in New York and Vermont now say they need more help from the federal government.