09-23-2014, 10:30 PM
Thanks for getting back to us, I figured you were on vacation back East catching big eyes[
]. Good to know there are that many big eyes that roamed the waters of Utah. Here is some info that a DNR guy shared with me about walleye.
1. A mature female walleye produces 50,000 - 60,000 eggs per 2 pounds of body weight. A 10 pound female can produce well over 500,000 eggs in a single season and they can reproduce for multiple years.
2. Egg survival is low. Depending on water temperature, spawning substrate and other factors, egg survival varies between 0-10% according to some studies.
3. Walleye are categorized as an r selected species because of these two traits. They have adapted to overproducing eggs in an effort to have just a few survive.
4. Ultimately, sportfish harvest within established limits has little impact on walleye populations other than to promote the growth of the fish remaining in the population. Most walleye fisheries in the west that produce trophy sized fish are managed with very liberal limits because harvest does not diminish the reproductive capability of the population, and because fewer numbers of fish equals better growth.
5. Finally, there is no evidence to suggest that the size of the parents influences the size of the offspring in fish.
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]. Good to know there are that many big eyes that roamed the waters of Utah. Here is some info that a DNR guy shared with me about walleye. 1. A mature female walleye produces 50,000 - 60,000 eggs per 2 pounds of body weight. A 10 pound female can produce well over 500,000 eggs in a single season and they can reproduce for multiple years.
2. Egg survival is low. Depending on water temperature, spawning substrate and other factors, egg survival varies between 0-10% according to some studies.
3. Walleye are categorized as an r selected species because of these two traits. They have adapted to overproducing eggs in an effort to have just a few survive.
4. Ultimately, sportfish harvest within established limits has little impact on walleye populations other than to promote the growth of the fish remaining in the population. Most walleye fisheries in the west that produce trophy sized fish are managed with very liberal limits because harvest does not diminish the reproductive capability of the population, and because fewer numbers of fish equals better growth.
5. Finally, there is no evidence to suggest that the size of the parents influences the size of the offspring in fish.
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