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just remove this whole thread. this sucks, go on face book for this stuff, lets talk fishing.
Walleyes need a slot 22"-27" or even more than that!!!!! it works and helps maintain a great eater walleye fishery of 13-20" fish. If the regs ain't in place, keep em its your right. If the lake gets over fished it is the G&F not having a clue what to do and I don't think they do!!!! If you want to understand walleyes study the history of Lake Mille Lacs. It has a 18-28" slot to help it recover and it really has and they might shrink the slot as things get better. Its not really about creating a trophy by throwing a 28" fish back so it will be 30" later it is about keeping the prime spawners spawning!!! But the bigger fish will be there as trophies too with a slot limit and you can keep one a day for the wall. Why can't the G&F understand this before its too late.
You have picked out one of the few lakes that there is definitive evidence that slot limits have improved the fishery. On many, many other lakes, the data is not very conclusive. Mille Lacs sees huge angling pressure, which is required for restrictive regulations to have any effect on recruitment and mortality of different age classes of fish. Unless there is enough angling pressure that a sizable portion of the population are caught and released because of the change in the regulations, restrictive regs like slot limits do not make any difference. After the huge boom in the use of slot limits all over the US about 20 years ago, there have been quite a few studies that indicate they are of limited usefulness unless fishing pressure is the main source of mortality and lack of recruitment. Generally that is not the case in Wyoming.
Your saying that releasing spawning females to a lake doesn't help reproduction? Well I guess your saying just keep em all.
The forum I regularly follow for Utah fishing (not ice shanty)... The lead biologist for Utah's warm water species is on there and contributes. He'll answer questions, etc.It is nice.
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I wish a game and fish official would join this site. Their input would be awesome.
You guys have got your wish. I am a Fisheries Biologist in the Sheridan Region and the biologist for Keyhole. I got permission to join the site to help with discussions and to help answer any questions.As far as Keyhole goes. I try to get out there as often as I can, to sample and collect as much data as I can. As it stands now, Keyhole does not need a special regulation on walleye. In order for a slot, minimum length or max length limit to work, total mortality (natural + hooking or harvest) must be greater than 35%. Total mortality for Keyhole walleye has never been over 25%. It wouldn't work right now. We would end up with a population of stunted walleyes or walleyes that had to be released because they were in the slot. But believe me, when the data tells me that a regulation would improve the walleye within Keyhole, I'll be the first to do it. Glad to be on the site. Holler if'n ya got ? I'll do my best to keep current.
You guys have got your wish. I am a Fisheries Biologist in the Sheridan Region and the biologist for Keyhole. I got permission to join the site to help with discussions and to help answer any questions.As far as Keyhole goes. I try to get out there as often as I can, to sample and collect as much data as I can. As it stands now, Keyhole does not need a special regulation on walleye. In order for a slot, minimum length or max length limit to work, total mortality (natural + hooking or harvest) must be greater than 35%. Total mortality for Keyhole walleye has never been over 25%. It wouldn't work right now. We would end up with a population of stunted walleyes or walleyes that had to be released because they were in the slot. But believe me, when the data tells me that a regulation would improve the walleye within Keyhole, I'll be the first to do it. Glad to be on the site. Holler if'n ya got ? I'll do my best to keep current.YES! thank you Lord! now there won't be as much speculation. Thank you for joining WGF! This might even help you with some information on the fisheries.
Thanks for joining in. It will be interesting to hear how this works. By total mortality, do you mean the total number of the species that dies or is harvested in one year or is that based on some other life cycle?thanks.
Yes, total mortality is natural mortality (died of old age, got eaten by a bigger eye or pike) plus harvest mortality (fish that are kept by anglers). We use creel survey data, age structure data, and catch data to help determine the value. For comparison, Glendo's total mortality (and the reason the regulation was changed) was found to be only 35% (right on the cusp of a regulation working). Glendo sees and extrodinary amount of harvest, yet total mortality is only 35%. Might give you some perspective.