The migration patterns of basking sharks have long mystified marine biologists, but new research has finally revealed where the world’s second-biggest fish hide out for half of every year. “While commonly sighted in surface waters during summer and autumn months, the disappearance of basking sharks during winter has been a great source of debate ever since an article in 1954 suggested that they hibernate on the ocean floor during this time,” said Gregory Skomal of Massachusetts Marine Fisheries, one of the authors of a report recently published in “Current Biology”. “Some 50 years later, we have helped to solve the mystery while completely re-defining the known distribution of this species.” Using new satellite-tagging and a new geo-location technique, the researchers found that basking sharks make long migrations through tropical waters of the Atlantic Ocean during the winter, traveling at depths of 200 to 1,000 meters.
