Thanks to years of effective fisheries management and conservation efforts, the future looks better for some tuna and billfish species, including southern bluefin tuna, black marlins, and swordfish, after decades of population decrease. However, a new study indicates that certain sharks that reside in the open ocean habitats of these species still face threats.
Australia rebrands shark attacks as negative encounters and bites msn.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from msn.com Daily Mail and Mail on Sunday newspapers.