Deadly fish traps found in River Skerne

Scientists Discover Ancient Fish Trap in Southeast Alaska - Alaska Business Magazine

Hundreds of Fish Wash Ashore in South Dakota River: 'This Is Crazy

Toxics, Free Full-Text

Killer Snakehead, River Monsters Wiki

Hydrology The Geography and Environment postgraduate blog

7,000 year old fish traps discovered in the Norwegian mountains

Reconstructing a Prehistoric Fish Trap

Animal Planet's 'River Monsters' visits Illiamna Lake - Anchorage Daily News

Never seen anything like it': Hundreds of dead fish pile up on rocks at Huron dam - Mitchell Republic