Students used to studying in the library may need to shift their routines this semester, as both the East and West campus facilities now have shorter hours. The White Library and Barth Learning Resource Center will each be open seven fewer hours each week, with only one open at a time on the weekends. The change was made after a yearlong survey concluded that less than 50 students would be affected. “If it had been a large amount [of students] we would have stayed open,” said Sally Bickley, librarian head of the reference services. Bickley has been with Del Mar…