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CURRENTLY 38°
MOSTLY CLOUDY
WINDS EAST @ 8MPH
HUMIDITY 65%
VISIBILITY 10MI
DEW POINT 27°

Lake Mendota, Dane County

Lake Mendota, Dane County
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DISPLAYING 1 TO 10 OF 11,365 POSTS
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10/24/20 @ 6:57 PM
rk_diver
rk_diver
User since 8/18/03
One of the things that happens, especially with a large, deep lake like Mendota, is after turnover and the DO has been replenished throughout the entire lake, the fish most people define as "desirable" can now be at any depth, anywhere on the lake. So there's a lot more area to cover obviously. During the summer with the thermocline at 30'  you can (again, for "desirable" fish) consider the lake to be under 40' in depth because there isn't enough dissolved oxygen to support them for any length of time. But after turnover we've got winter coming up and fish are eating as much as they can in prep for winter. So they can be easier to catch in that respect. During a late fall dive, just before ice up I've seen lone fish like a Bluegill out in the depths, just sitting on the bottom. Keep in mind also, the UW Limnology, years ago (Birge & Juday I believe were among the first to do the studies) would go out and take mud samples (cubic meter) at various depths, take them back to Limnology, dry out the mud and then count every "critter" they found. THOUSANDS on them in a cubic meter; blood worms, insect larva, and many other. So when you see a lot of perch on the locator or camera, and they won't bite, it may be because they've got more than enough food easily available. So after turnover they can be out in the depths with plenty of food available, making them harder to catch. Very small tip of the iceberg, tons of information out there from people a lot smarter than me! :) Rick

10/24/20 @ 5:56 PM
Fishing201
User since 11/10/08

Hey all! Been fishing the chain for over 20 years, but up until this summer it’s been only from shore. I’m new to fall fishing from a boat. I‘ve read articles, etc...but can’t figure out if turnover is good or bad for fishing. I understand what actually happens with turnover, but am not sure if it shuts fishing down or not. Does anyone care to discuss? Any info would be much appreciated! Thanks!

10/24/20 @ 3:17 PM
rk_diver
rk_diver
User since 8/18/03

The water temp is consistent throughout the water column but the only way to really know for sure is to measure the dissolved oxygen levels at depth. When those levels are restored then the lake has turned. Unfortunately the UW only measures DO levels at the surface so the monitor buoy can't help. However, divers reported the clarity on the Habitat (in about 40 FOW) was really bad last week, and that's an indication of turnover. But not a definitive one. 

10/24/20 @ 3:03 PM
BunnyT
User since 1/15/11

Has the lake turned over now?  With all this cold I’m assuming so but thought I’d ask.  Want to introduce my 12 year old to fall walleye fishing!

10/22/20 @ 1:07 PM
FISHING REPORT
MOON PHASE (41%)
Waxing Crescent
CONDITIONS
Partly Sunny
WATER TEMP
51° - 55° F
AIR TEMP
46° - 50° F
fishingfriend
User since 5/27/19

Wed pm sun came out, winds weren't 30 and - what the heck - fist decent weather in 10 days!  Slipped outa work and got out and caught a handful of undersized walleyes. 26 feet AND along 10 feet weed lines on fatheads.  

Not very cooperative - but it was GREAT to get out again!

10/20/20 @ 1:33 PM
FISHING REPORT
MOON PHASE (21%)
Waxing Crescent
Madison Fish Guy
User since 9/13/13

Fished the shore again last night after dark .. not too many glowing eyes floating around but one did take my minnow and I am eating that walleye for dinner tonight ... 19" .... slow fishing though .... 

10/19/20 @ 6:25 AM
FISHING REPORT
MOON PHASE (12%)
Waxing Crescent
Madison Fish Guy
User since 9/13/13

Shore fished on south side of lake last night in shallow water. Could see the eyes glowing on the walleyes but they wouldn't touch a jig or crank or minnow ... until I switched it up. Ultralight with 4 pound test with a small fathead hooked through the lips with no sinker. They liked that .... got 4 with the biggest being 18".

10/18/20 @ 8:59 PM
FISHING REPORT
MOON PHASE (5%)
Waxing Crescent
Catfish D
User since 6/14/16

Was out there today at the park with the row boats and was getting a good bite from some nice gills wax was the bait of choice for gills tried red but the ain't want them... don't  no bit the gills had nice side to em average size was 5.5 6 inches.got maybe 12  in 3 hrs .. I'll post pics soon 


10/17/20 @ 11:41 AM
Fillet Show
User since 7/14/08

Thanks Mendota for the information.  I knew you would know more about it.  Makes sense about the coots and this time of year.  
fs

10/15/20 @ 1:11 PM
mendota
MEMBER since 12/19/01

The "grass" is water celery, Vallisneria americana.  Major food for waterfowl; early in the fall the power boats running in the shallows chew it up, this time of year you see a lot of whole plants pulled up by the roots, pretty sure you can thank the coots for that.

Dominates the lake out to 6' or so.  Very buoyant stems, obviously.

Lot of fun if your landing is on the down wind side of the lake that day.


DISPLAYING 1 TO 10 OF 11,365 POSTS
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