Nov 13, 2014 | Caddisflies, Insects
This video shows an adult caddisfly laying its eggs in a rock crevice at Nugget Falls in Juneau, Alaska. About 134 species of caddisflies have been documented in Alaska. To learn more about caddisflies go to Aquatic Insects in Alaska — Major Groups and...
Nov 13, 2014 | Mammals, Seals
These coho salmon are returning to the DIPAC hatchery in Juneau. Some harbor seals are taking advantage of them and even swim up the fish ladder in search of coho. Notice how some seals swim on their back. Why do you think they do this? Think about their ability to...
Nov 13, 2014 | Mammals, Salmon
Often the first coho salmon to return to Alaska’s streams are the males. This video shows several males waiting for the females to arrive. If you want to know more about our salmon and wonder where they go in winter check out Salmon in Winter by Bob Armstrong...
Nov 13, 2014 | Dolly Varden, Fish
To understand this video concentrate on the shiny female Dolly Varden on the right. She goes on her side and starts to dig a nest. A colorful male Dolly Varden comes up beside her, vibrates, and then leaves. Partly out of the video on the right a jack coho salmon and...
Nov 13, 2014 | Mammals, Salmon
This video shows both male and female Sockeye Salmon in an Alaskan stream getting ready to spawn. How can you tell the females from the males? Think about how you can tell an adult Sockeye Salmon from an adult Coho Salmon. You can look at the video on coho and try to...