SACRAMENTO, Calif. – Environmentalists who successfully tapped taxpayer money to buy thousands of acres of California coastline to stop development are now targeting the Pacific Ocean, with a plan to curb human activity by buying boats, fishing permits and possibly underwater land. The idea is provoking a renewed struggle between some of the world's wealthiest and most powerful environmental groups and California fishermen who fear they gradually will be booted off the ocean they prowl for recreation and profit. California voters could be pulled into the fight this November. Gov. Arnold Schwarzenegger has taken no position on proposals that ask...