Several species of tuna migrate into the waters off of San Diego every spring. The water temperatures offshore in the spring is usually about 65 degrees near San Diego. Albacore tuna prefer colder water (60-68 degrees) bluefin tuna prefer warmer water (64-70 degrees) and yellowfin tuna prefer even warmer water (66-80 degrees) in the last 10 years, albacore have moved north to Oregon, blue fin are now here year-round and yellowfin arrive earlier in the year. What would you infer has happened to water temperatures of California? What do you think will happen in the future?