Walleye slot limit, what do you think?
So is it time to ask ourselves if it is time to put some restrictions for a slot limit on the tff. 18" - 20" walleyes are nice we catch an abundance of them every year. But there was a time when a 5 - 8 pounder was not unusual. I know I would like to catch 1 in that range if not bigger some day and not have to go trolling to bay de noc. I personally hate trolling. There are an abundance of small mouth which are fun to catch and I know theree are 5 - 8 pounders caught with regularity, problem is just like the damn northerns they eat everything in sight. I don't dislike smallie's, I do dislike northerns, I just think with a little effort we can make the tff an excellent trophy lake for walleye's too. I know it disturbs the amount of fish we can keep, but we can still have fun catching them, and it wouldn't take many years for it to start showing the affects. We have musky's and smallie's lets go for the trifecta. Something for everyone to ponder over the winter months, not trying to start any controversy just looking to hear some thoughts. Its getting very boring and cold, may is to far away!
Well said by MuskyRandy...
Nice to see somebody presenting a thoughtful perspective on this topic. I also give points to Esox1 for realizing that just because a certain type of regulation worked on one lake, that doesn't mean it's the right approach for every lake. And that's the level of thought that's missing from this discussion. But first a quick side note to Esox1 - they don't allow spearing of "any and all sized walleyes". Actually, there's a 20" maximum size limit, except 1 fish may be between 20-24" and 1 fish may be any size. Read the regulations here:
http://glifwc.org/regulations/WI_Spearing.pdf
Back to the topic - it's easy to cite numerous examples of other lakes where various types of regulatory changes produced wonderful results. There are also cases where the very same types of regulations have resulted in unexpected and disastrous consequences. Thankfully, success stories are more numerous than failures, because today's fisheries managers are well-educated, have a good and growing body of fisheries research to draw on and hence tend to make good decisions when they begin with adequate data and realistic goals. But that's the missing element in the anecdotal stories recounted here.
Take George's case as an example. What were the population conditions that lead biologists to impose those slot limits on Lake Des Mille Lacs? Obviously the population was thought to be deficient in some way, or they wouldn't have changed anything. Was it overall numbers, size structure, or a combination of the two? And what were the presumed causes? If you're going to advocate a minimum size limit, a maximum size limit, a harvest slot, a protected slot, or a change in bag limits, start by understanding what undesirable population conditions your proposed solution is designed to counteract, and present the data to show that the TFF fits those conditions. Whether it worked somewhere else is irrelevant.
One well-known fact about walleyes is that population density (abundance) is often not reflected in angling success. There is a wealth of data indicating that lakes with very stable walleye populations can produce dramatic changes in catch rates from year to year, depending on weather, prey abundance, and a variety of other factors - I'm sure gas prices had a significant effect on last season's harvest. And walleyes are one of the more difficult species to catch to begin with. So how many and what size any one person is catching, or the total number being harvested, often provides little or no insight into what's actually swimming in the lake.
I believe the TFF is completing a transition from a period of walleye overpopulation that peaked in the 1970's, when overabundant walleyes suppressed other species and provided easy angling due to inadequate prey availability. It wasn't a walleye factory, it was a walleye sweatshop. It may have been great for walleye anglers, but it wasn't ecologically sound. What we'll have going forward is a more diverse and balanced fishery that will provide more stable long-term angling opportunities for a variety of species. Spearing may have been part of the catalyst for this change, but I suspect that increased angler harvest due to modern boats, motors and electronics, improvements in angler knowledge and improved access to the Flowage played a much greater role. We're going to see a walleye population that fluctuates around an average of around 5 adult fish per acre, which is still well above the regional average, with 20-30% annual harvest keeping the population stable but also limiting the opportunities for fish to grow to trophy sizes.
In this environment, larger walleyes are going to be harder to catch, because they'll have better access to preferred natural prey - it's tough to catch 20" walleyes on 3" minnows when they have plenty of 6" perch to eat. And on most of the trophy waters MuskyRandy mentions, that's not how they catch the big fish. Start throwing or row-trolling 6-8" Rapalas once in a while and you'll find that the TFF is not completely lacking in bigger fish, although I've never caught a real trophy walleye there. That reminds me of a trip to Wollaston Lake in Saskatchewan several years ago, when my buddy and I and two guys in another boat spent a couple hours one afternoon pulling 6 lb. walleyes out of a big weed flats every 2-3 casts - on M&G Musky Tandem spinnerbaits.
If any change in the walleye regulations is proposed (I think the odds are about 2-1 against), the purpose would be to add a few trophy size fish to the mix, and the likely options would be either a maximum size/1 over limit (for example, a daily bag limit of 3 with only 1 fish over 19") or a protected slot/1 trophy limit (3 fish daily, no harvest of 19-25" walleyes, only 1 may be over 25"). Those numbers are just examples, but I don't think they'd be too far off. There's no point to a minimum size limit or harvest slot, because there's never been a lack of natural recruitment in the lake and the fish reach sexual maturity before they reach a size that's desirable for most anglers to keep. I do think we'll see a proposal to increase the musky size limit to 45-50" in an effort to increase the numbers of adult fish and try to restore a naturally reproducing population. I don't expect the smallmouth and panfish regulations to change.
Also, a note on crayfish. Try pulling up one of those commercial traps sometime - okay, maybe you shouldn't, but I didn't know what the float was for and I took a peek - and you'll see that there's not much to worry about. Again, just because they're not wandering around in the open at night (would you, with a bunch of 3 lb. smallies swimming around?) doesn't mean they're not there.
As usual, the facts disagree.
DonH might not have been catching any smallies before 1990, but the 1989 creel census estimated a harvest of 5199 smallmouth averaging 12.0 inches. A review of the historical survey/creel census data led our fisheries biologist to conclude, "Based on 1989 creel data, the population likely increased in abundance during the early 1980's and became a more significant species in the fishery thereafter." Makes sense, since a 12" fish in the TFF is about 4 years old. That means a significant proportion of those smallmouth caught in 1989 had hatched prior to 1985 (the first year of spearing) - which pretty much rules out treaty harvest as the initial cause, unless the Ojibwe spearing arsenal included time machines.
And somebody ought to tell that commercial crayfish operation to stop wasting their time placing hundreds of traps in the TFF, since our resident expert says there aren't any to be caught. Funny thing is, they keep coming back every year - I can't imagine why. For that matter, it's odd that the smallies are still so healthy despite having eaten all of their preferred prey.
As for adaptive changes in behavior by the crayfish population, brain size has nothing to do with it (an inane comment to begin with, since the simplest organisms - like bacteria - evolve at the fastest rate). It's not about individual crayfish changing their behavior, it's about changes in the population over time, and that's purely a function of reproductive success. If you have a population where there is no significant natural predator, a lot of crayfish will do just fine foraging out in the open while their cousins are busy crawling around in rocks and cover. The difference could be a genetic trait or a simple function of location. But add some smallies to the mix, and guess which ones are going to be doing most of the reproducing? Given that crayfish reproduce 1 year after hatching, 14 years represents 14 generations of crayfish, more than adequate for a significant restructuring of the population.
jjeyes19, I thought everybody knew where I lived! I remember the fish kill, but don't remember exactly what year it was. We weren't up there at the right time to see it for ourselves, but our neighbors said a lot of big walleyes and smallies washed up on our shoreline just after ice-out, blown over from the Horseshoe area. The local theory was that it was caused by oxygen depletion from unusually thick ice that winter. Maybe REB will chime in - he saw it firsthand. As for my biggest walleye, it was a 26" caught 3 years ago in boulders in less than 2' of water. I caught it off one of the islands in Horseshoe in May, while smallmouth fishing with a 6" white soft plastic jerkbait. I've caught a lot of nice 20-24" walleyes, especially in recent years. Most of them were caught on size 12 or 14 gold Husky Jerks. And I've caught plenty of 5 lb. smallies, but I've never seen an honest 6 lb. fish caught by anybody, so you're probably wise to keep that spot to yourself.
I'm not sure what this topic is anymore!
Blue, I've debated with my father about the crayfish population as well. I do recall seeing tons of crayfish along rocky shorelines and those crayfish just don't seem to be there anymore. Whether that means they moved to safer areas or there's a drop in the population I'm not sure.
In regards to the smallmouth explosion the TFF has experienced in the past 20-25 years..... The 1989 smallmouth harvest by anglers was 5199 with an average length of 12". A 12" TFF smallmouth is approximately 4 years old. The indians first started spearing in 1985, four years before the 1989 smallmouth harvest of 5199 fish. I've never been great at math but the numbers seem to lead this common man to an obvious explanation.
As a side note, when we were kids we used to soak crawlers off the pier at Idle Shores. One year in the mid 80's (don't recall the exact year) we started catching little smallies. The next year the smallies were a little bigger and we started catching them all over the flowage. It's gotten to the point now where some of our good walleye spots produce mainly smallmouth bass.
The If huge spearing numbers of walleye in the mid 80's didn't directly result to the smallmouth comeback, what is the explanation?
turtle flambeau flowage - walleyes
I ( with my family ) have been going to the flowage since 1960 ... though I was two back then . The biggest Walleye's I caught were in the Mid 1980's .. 1 each year apart ( Late September - the two biggest on Minnows ) were a six pounder .. a nine pounder ( approx 29" ) and a eleven pounder ( 31" ) ... my brother has caught two over eight pounds ( one in the sixties .. the other one the year I caught the 11 pounder . Two years ago I caught one ( Night Crawler ) about 26 " ... though the weight was low . Also ... we would catch much larger walleye as a average back then too . we would always catch them in the 17 to 21 " range ... very few now average that length .. many 14 to 16" ( and I release almost 100 % of my fish .. ) . As for the Smallmouth Bass ... very late eighties or early 90's .. and very few at that . As for the Crayfish ... many more back then on the shoreline at night . Oh yes .... the stumps were bigger too ( at least in height ) !!!!