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Pike and walleye: boost and bane
#1
Read this article:
http://www.rockymountainanglers.com/imag...NW1996.pdf

Although relatively old, the article contains a lot of great information on why pike and walleye are NOT stocked more often in the Northwest.

From the article:
"Managers have repeatedly observed creation of a "predator trap," a large number of prey-limited piscivores (Peterman and Gatto 1978), after wall- eye introduction in other systems. Walleye predation led managers to stock larger trout or eliminate the trout fishery in Pathfinder (McMillan 1984), Keyhole (Wichers 1981), Alcova, and Glendo (WGFD 1990) reservoirs, Wyo- ming; and Salmon Falls Creek Reser- voir, Idaho (Partridge 1988). A survey of 15 major walleye-producing reser- voirs in Montana revealed that, al- though 3-4 reservoirs produce good walleye fisheries with catch rates near 0.3 fish/h, most are limited by inade- quate forage (Shepard 1991). Walleye appear prey-limited in most Wyoming reservoirs, with growth rate positively related to trout stocking density (Mar- witz and Hubert 1995)."

Sound familiar? This is the exact same thing that happens in Utah reservoirs…!
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Pike and walleye: boost and bane - by wormandbobber - 04-02-2014, 05:05 PM

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