Mar 10, 2018 | Dolly Varden, Fish
Dolly Varden in Winter shows many adult and subadult Dolly Varden grouped together in a small open spot of an ice-covered lake. The dissolved oxygen dropped considerably in this lake and the Dolly Varden appear to be under stress. The dissolved oxygen levels measured...
Aug 11, 2017 | Other Fish
A Salmon Carcass in Saltwater illustrates some of the creatures that feed on them when the tide comes in. The most active have been Staghorn Sculpins and the next have been Dungeness Crabs. Occasionally Starry Flounders and Crescent Gunnels feed on the carcass. This...
Jul 29, 2017 | Other Fish
The High Cockscomb is about a fish Anoplarchus purpurescens that belongs to the Prickleback family Stichaeidae High Cockscombs are amazing fish that can remain out of water under rocks and seaweed for 15 to 25 hours if they are moist. How they do this is explained in...
May 16, 2017 | Other Fish
The Perfect Prey is meant to be used as an introduction to the importance of Pacific sand lance for many creatures in Alaska. To understand its importance and its role in Alaska’s ecosystem look at Sand Lance A Review of Biology and Predator Relations and...
Aug 20, 2016 | Dolly Varden, Salmon
In winter anchor ice can form in streams under certain conditions. This can be devastating to fish eggs and yolk sac young living in the gravel and to juvenile fish such as salmon and Dolly Varden living in the stream. This video could be used as an introduction to a...