SACRAMENTO (AP) - Gov. Arnold Schwarzenegger said Friday he wants a plan on his desk in 90 days on how the state can better manage state waters and seashore. California, with 1,100 miles of coastline, is among the most economically dependent on the tourists drawn to its beaches and on ports that serve as gateways to Mexico, Canada and Pacific Rim nations. The state's shore, ports and oceans account for an estimated $60 billion in direct spending and $15 billion in annual tax revenues. "The health of our ocean resources and the economy they support benefits not only California, but...