50 Years Of Data From Shark Tagging Efforts
A citizen science program has shed new light on the movements and distribution patterns of dozens of species of sharks.
A 52-year database of the distribution and movements of 35 Atlantic shark species revealed new information on some of the least known species. It also uncovered a few surprises about where sharks go and how long they live.
Scientists collected data for sharks tagged and/or recaptured between 1962 and 2013. The sharks were found in the Atlantic Ocean and associated areas, including the Gulf of Mexico, the Caribbean Sea and the Mediterranean Sea. Participants tagged a total of 229,810 sharks of 35 species and recaptured 13,419 sharks of 31 species in that time span. The scientific journal Marine Fisheries Review recently published the data.
This new atlas updates an earlier version covering 1962 to 1993 and adds information on 22 species. Detailed profiles are provided for 14 shark species, including bull and tiger sharks and smooth dogfish. The updated data significantly extended their known ranges and movements.
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