(Graduate students register for 285H.) Five week course. Daily lectures, labs, and scuba dives focused on scientific diving and quantitative ecological methods in kelp forests.. Topics include identification and natural history of resident organisms, ecological processes, and subtidal field techniques. Class projects contribute to long-term monitoring at Hopkins Marine Station. It is recommended (but not required) that students complete the Stanford Scientific Diver Training session, typically offered prior to the start of the course. Prerequisites: consent of instructor; rescue scuba certification and scuba equipment.