Three tiger sharks outfitted with satellite tags are providing remarkable and previously unknown information on their long-term movement behavior.

What has been really interesting to watch as we track these tiger sharks is that they have all moved in very different directions, despite the fact they were all tagged in the same place on the same day.

The results from long-term tracking of sharks tagged in Bermuda are showing that in the western North Atlantic, adult tiger sharks display detectable patterns of movements and clear evidence of residency “hot-spots” that appear to be seasonal. The overall patterns detected for adult sharks are that they migrate south along a broad corridor from Bermuda to the Bahamas (mainly) and some sections of the Antilles, where they overwinter. The sharks then embark on northern migrations during spring and summer months, spending 5-6 months in the open ocean, north of Bermuda and in many cases almost in the middle of the Atlantic Ocean!

What they are doing so far out in the Atlantic Ocean after spending 6-8 months so tightly associated with island habitats in the Bahamas and Caribbean are anyone's guess

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