Crew filmed killing 83 dolphins

A crew of Brazilian fishermen was captured on video killing 83 dolphins and joking about their illegal haul, Brazil's Ibama environmental protection agency said.

The video obtained by an Ibama researcher and broadcast by Globo TV showed the fishermen netting the dolphins, which suffocated because they could not surface to breathe.

The dead dolphins were then hauled from the sea and piled on the boat's deck. Fishermen on board are seen laughing after someone said, "Everyone's going to jail after this filming!"

International dolphin advocates who saw the video said they were appalled and Ibama announced it will try to impose fishing restrictions along parts of Brazil's coast where dolphins are common.

No one has been charged or fined because authorities were still trying to identify the fishermen caught on video, Ibama said in a statement. After they are identified, "they will suffer the appropriate sanctions," Ibama said.