Nature a mystery in alaska blame killer whales? pbs

http://www.pbs.org/wnet/nature/episodes/a-mystery-in-alaska/introduction/888/ Many fishermen feel they're being framed for declines in Steller sea lions. Pollock are more abundant than ever, they say. Frustrated fishermen captured video of killer whales thrashing at sea lions in a harbor. Elsewhere, one killer whale was found with the remains of at least 13 sea lions in its stomach. Despite this evidence, the role that killer whales are playing in the mystery of disappearing sea lions remains unclear. Naturalist filmmaker Shane Moore, who has been working in the Alaskan wilderness for much of the past 10 years, brings a sense of urgency and new understanding to this puzzle in "A Mystery in Alaska." NATURE's "A Mystery in Alaska" airs on PBS Sunday, August 24 at 8 p.m. (check local listings), part of the 26th season of the Peabody and Emmy award-winning series produced by Thirteen/WNET New York for PBS. Major support provided by Canon U.S.A. Inc., Toyota, SC Johnson, and the Corporation for Public Broadcasting. For more information, visit http://www.pbs.org/wnet/nature/episodes/a-mystery-in-alaska/introduction/888/