Joel Greene and the crew travel north to the beautiful state of Alaska and get a front row seat to a stream packed with more salmon than you can imagine. Greene learns about salmon from an Alaska Fish and Wildlife specialist.

Originally released by Green Planet Films, 2012. Streaming video file encoded with permission for digital streaming by Infobase on November 06, 2014.

Alaska Department of Fish and Game --(3:15) -- What is Imprinting? -- (2:37) -- Why Do Salmon Swim Upstream? -- (3:43) -- Why Do We Need Fish Hatcheries? -- (4:01) -- What Time of Year Do Salmon Lay Eggs? -- (2:04) -- What is a Net Pen? -- (2:33) -- Baby Salmon -- (1:48) -- What Do Salmon Eat? -- (3:12) -- Credits: Salmon -- (0:56).