General Description: Blue walleye look like regular yellow walleye except for the color. Blue walleye have a blue pigment in the mucous of the skin. To see the blue color, do a skin scraping with a knife from head to tail on the back above the lateral line and just below the dorsal fins.
The blue walleye (Sander vitreus glaucus) was a subspecies of the walleye that went extinct in the 1980s. The blue walleye used to be found in lake Erie and Ontario of the Great Lakes region of North America, including the inter-connecting Niagara River. The blue walleye is now considered extinct.
Walleye anglers are occasionally reporting blue walleye being caught from waters in the Great Lakes Basin. As of today, it seems that none of the bluish-coloured walleyes recently captured has been shown to be a true blue walleye.
I’ve read on Bluewalleye.com « that blue walleye of Canada are genetically different than the extinct "blue pike" of Lake Erie. They are albino for yellow color and have blue color in the mucous of their skin. The blue color forms on the dorsal (upper) part of the body and is particulary noticable in the two dorsal fins and the upper part of the tail. »
I was amazed also to read one of the research update from Dr. Wayne Schaefer : «It is possible that walleye in Canada use, as a sun screen, the very chemical which forms in their blood from exposure to too much sun. This conclusion is still only speculation but it is our best hypothesis.»
If you want more details about the true blue walleye, visit Dr, Wayne Schaefer Blue Walleye Blog. You will even find the following information: Blue Walleye paper 2007 and Blue Walleye sighting.
Labels: Walleye basics