Walleye Pollock in Alaska - Bob Armstrong's Nature Alaska

https://vimeo.com/138036461

This video is meant as a short introduction to one of Alaska's most important fish.
Some quick information about them can be found in Walleye Pollock by Bob Armstrong from Alaska's Fish
It would be good to do some research into their value as food for humans and food for other creatures.
You could start by looking at Hollowed, A. B., Ianelli, J. N., and Livingston, P. A. 2000. Including predation mortality in stock assessments: a case study for Gulf of Alaska walleye pollock. – ICES Journal of Marine Science, 57: 279–293.