Half Moon Bay farmer Aldo Giusti says he's given up farming a 100-acre field for lack of water. Water rights fight By Nicole A. Freeling-Half Moon Bay Review--Photos by Mark Jordan Since the Civil War, the fields surrounding the Johnston Ranch have been kept green in the summer by two old sets of wooden planks dropped into Arroyo Leon to form reservoirs. But this year, under an edict to protect endangered salmon, the dams remain open - and instead of leafy rows of mustard greens and brussels sprouts, there are acres of mostly unplanted dirt. The California Department of...