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Trophy blue catfish on Lake Livingston Q + A

5.8K views 14 replies 8 participants last post by  shadslinger  
#1 ·
This an exchange I had with TPW and was allowed to share on 2cool.

I was referred to this site to express my concerns regarding lake Livingston blue catfish of size. For over ten years I have guided on the lake and drifting for blues over twenty pounds catch and release. The catch rate for me and my friends who are accomplished big cat fishermen have all noticed a sharp decline in catching large blues. From relatively a sure thing to almost nothing. All I can do is express my thoughts but you may want to check with other folks such as commercial catfishermen etc.


Hi Mr. Deason, When we sampled the lake for blue catfish using gill nets in 2012 and in 2017, the blue catfish catch rates during these sampling events were relatively high and stable. Then earlier this year when we ran gill nets for blue catfish, we caught more blue catfish then we ever have on lake Livingston. This data shows us that the blue catfish fishery on lake Livingston is at least stable or possibly even increasing. The number of the blue catfish collected in these sampling events can be broken down as such: • In 2012, we gill netted 522 blue catfish total, and of those 522 fish, 163 of them were 12 inches or greater (stock size fish = 12 inches or greater), and of those 163 fish, 23 of them were 20 inches or greater (quality size fish = 20 inches or greater). • Then when we ran gill nets in 2017, we gill netted 431 blue catfish. Of the 431 fish, 292 (over half of fish gill netted) were 12 inches or greater, with 56 fish of the 292 that were 20 inches or greater. • This last year we gill netted 649 blue catfish, with 320 fish (almost half of the fish gill netted) being 12 inches or greater, and out of those 320 fish, 80 were 20 inches or greater. In summary: • 2012 - 163 stock size fish (12 inches or greater), 23 quality size fish (20 inches or greater) • 2017 - 292 stock size fish, 56 quality size fish • 2021 - 320 stock size fish, 80 quality size fish This shows us that each year we are catching more stock size fish, along with more quality size fish. The stock size fish are fish that we assume will survive and reproduce, contributing to the fishery. The first year, less than a quarter of fish caught were stock size fish, and out of the last two sampling events (2017, 2021) roughly half of the fish caught were stock size fish. These stock size fish are fish that are mature and can reproduce, contributing to the fishery. So as time goes on, we are seeing more stock size fish, which tells us the blue catfish fishery on Livingston is stable and steadily growing. Also, we are seeing more quality size fish (20 inches or greater) with each sampling event: 2012 - 23 fish, 2017 - 56 fish, 2021 - 80 fish; showing that the number of quality size fish is increasing. Quality size fish are fish that anglers would consider a good quality catch. Furthermore, the relative weight (measure of plumpness) for the blue catfish in these sampling events has had roughly an average of 90% meaning these fish were healthy. With us seeing higher catch rates in our sampling events, good relative weights (plump fish), and the proportional size density (stock and quality fish) increasing we should see the blue catfish fishery grow in a positive manner. Per your original comments and questions, you specifically referred to blue catfish over 20 pounds (or fish around 35 inches in length). With our gill netting surveys, we have never caught very many fish over 20 pounds at Livingston, or at any of our other blue catfish fisheries like Sam Rayburn and Toledo Bend. So we simply don’t have adequate data to examine the population status of blue catfish over 20 pounds. We can’t say whether abundance of these large fish is increasing or decreasing. When it comes to the sedimentation problem on Livingston, no question this is a huge issue. Unfortunately, Lake Livingston is a prime example of rapid reservoir aging. The Trinity River carries a huge sediment load, and once the river reaches the upper end of the reservoir, the water flow or current slows down enough for the suspended sediment to fall out and settle on the bottom, particularly during high flow flood events. This problem is on such a massive scale at Livingston that there are no practical or affordable solutions. Dredging is a theoretical option, but it is very costly and labor-intensive. Dredged areas would only silt in again over time. I hope this helps with your thoughts. Thank you for reaching out to us, please continue to do so if you have more questions about your fisheries. Best, Jasper Management Office
 
#3 ·
Loy,

Up in our section of White Rock Creek near Goat Island we have several holes we fish on the channel during late November through April. We have caught several in the 10-20 pound range and have up to 33 pounds. We release the big ones. Up here it seems still steady, but I have fished the river side and was either on or off there. I wonder if silting has anything to do with it?
 
#4 ·
The only factor that changed that correlates with the sudden drop off of rod and reel blues over 20 is the last flood, three maybe four years back. I have many facebook memories of big blues on a near daily bases from three to four years ago. The ones from four are the most consistent. The flood I'm referring to was a little unusual as it muddied the entire lake. All the way to the dam and all coves nothing escaped. Usually the south end and finally Ash Flat Bay, which the area between Memorial Point and More Hill where The Lump is will stay clean as it is off of the river channel. Not that last flood it was really powerful and dumped silt everywhere.
I remember everybody jostling for position in the very last clean enough water to catch white bass on lures. It was the south bank of Memorial point, a flotilla in there everyday until it finally muddied up. And the day before the south end muddied I did well on big cats, and literally the next day the whole lake was muddy and fishing turned off completely for a long time. As the whole lake was muddy for a very long time.
When I go back and try the deep flats I used to do excellent fishing it's very poor. I have tried several of them and they all appear to have changed in the same way on my sonar screen. Loss of definition of contour lines would describe it best. With an apparent thick layer of softer bottom. The hits I get are almost always on step up or down of inches now and the cats do not seem to want to follow a bait any distance from that spot, nit as much as they used to.
I have taken to get getting tighter to structure and major depth changes, but it seems to me a lot of those big cats are just gone.
Hopefully conservation minded cat fishermen will release those ten pounds and over and in the long term future we will have a big crop of big cats.
I say all of this in hope that talking bad about the big cats will motivate them to prove me wrong!
 
#5 ·
I never really targeted big blues.....Daddy was a trot liner at heart in the late 60' s ant thru the70' s. We lived on the North End of the Lake in Jungle Village in the 70's....

I remember Daddy always wanting to catch a big blue. He said they just. Don't get big in Livingston. We caught Op's to 83lb but the biggest blues might go 20 ish.......

Looking back we didn't fish flats, we didn't fish the South end of n water. We fished the north end River Channel, the Jungle it self, and creeks and sloughs on the North End from White Rock creek to up past Riverside.....

I don't remember even seeing and article on drifting for big blues back then.....

Whats the Lake record blue for Livingston?
 
#6 ·
In the late 70’s through the 80’s Lake Livingston was one one of the most heavily trot lined fisheries in the state. I did some commercial fishing up around Sebastopol in those days and morning runnings often were well over 100lbs and it wasn’t unheard of to have 200lb days. I never heard of releasing a blue catfish or an Op until the last few years. I’m not a wildlife biologist so I can’t say if trophy blues have a better gene pool or are simply older? I know the lake fishes differently on the south end but I have caught many Op’s in the 70-88 lb range and blues up to 50 lbs and they have all been relatively shallow. I’m curious if the overpopulation of the smaller fish is leading to the decline in the numbers of big ones. A shocking survey would probably give a better picture of overall health of the fishery but would be difficult in the deeper part of our lake.
 
#9 · (Edited)
It takes a very long time for a blue to reach ten pounds, ten years.
And each inch after that represents a lot more bluecat. A 20 pound blue cat is about 12 years old a 50 pound is about 13-15 years old. Really big fish are often twenty years old and some can get older. The world record is 150 pounds.
What I take away from this is that there is a huge population of bluecats who will be a great size for the bulkhead bite.
For big fish I will keep going to catch bull reds and big uglies.
Unless I get another invite to Conroe which does have a lot of big blue cats, no commercial harvest, and with a very small river/creek as it's base it does not get massive floods and huge silt drops.
I do think a lot of the big fish went through the gates during that last flood too.
It may seem impossible to some, but remember the gates open up at 30' deep, that is not that far above the bottom of the lake. And when there is heavy current big blues take advantage and go on feeding frenzies on baitfish that are helpless in strong current.
Chase that baitfish right though the gates when each gate is open near 6' starting at 30' deep when the discharge is 70,000cfs.
The discharge was 70,000cfs for a long time on the last flood. A very long time.
I guided below the dam for many years off and on from the mid 70s to the early 90s and back again many times when the lake was blown out with wind and there was enough water for The Mighty Red-Fin.
More than three times in those years I have seen a huge bluecatfish come tumbling down the slide where the water is discharged and then make it's way to the big stilling basin.
The stilling basin is a huge concrete/rock pool used to catch the discharge and calm it down some before going over the rocks that further break up the flow.
The first time I saw that happen the restricting cable was 190 yards from the water spilling over the rocks on Polk County side and 200 yards on the San Jac side. Then there is the stretch of rocks and then the stilling basin and finally the end of the long slide, so add another 100 yards for the slide, 50 yards for the stilling basin 200 yards for the restricting zone. 350 yards at a minimum.
I used to say those were 25 pound catfish, but if I could see them from 350 yards away that plain there were much bigger I believe.
You can't see what is coming through at 70,000cfs.
 
#11 ·
That stilling basin would hold some big blues sometimes. One year there was a drowning down there and they shut the dam off to help us recover the body. Major big fish trapped there for a while. Also about late 90,s you could catch 200 to 300 pounds of blue on trotlines in the lake. Had to persuade Mr Ed into releasing the big ones. He is old school (88 ) and wanted to keep all of them.
 
#12 ·
I don't know Dale, I am positive Toledo Bend has a commercial fishery, but it's a border lake and commercial catfishing is a big deal in LA. They use hoop nets and catch em up!
Gill nets were legal up until I was about in my late 20s I think. I went with a buffalo fisherman on the Neches once, I bought a 50 yard of 4" mesh gill net at the army surplus in Lufkin and gathered up some spark plugs and he showed me how to set it across feeder creek( sandy creek) when the buffalo were spawning.
First time I ran it I had a 14' john boat full of 8# to 20# buffalo. I took them down the road and sold almost everyone of them in 30 minuets. I did take a big one and ate the ribs, they were very good.
Buffalo was the number one selling fish in America for a long time, carp were imported because of the demand for buffalo was great so the thinking was import carp as it was a favorite in the East.
Livingston has a gill net buffalo fishery history, at one time gill nets with big mesh were used by commercial fishermen to clean out the huge buffalo that were present, they were 30 to 50 pounds on the big side and averaged above 20 pounds. After a while there were no more monster buffalos, but hordes of small of ones.
So Texas outlawed gill nets, a good thing too as they catch everything big enough to get caught in the mesh.
A reservoir can hold X amount of bio mass, and it can be in a lot of small ones, or a fewer amount of big ones.
There was an experiment on white bass on Lake Livingston alone. The minimum was raised to 12", but it turns out white bass don't manage very well and soon there was nothing but 9" and 10" white bass in the lake, so they backed it down to 10" minimum again.
So maybe Whsalum is right, we need to get after them bluecats on the bulkhead bite and thin them out lol!
The problem is it takes a 30" catfish to weigh ten pounds on the average, and ten years to grow one that big.
 
#13 ·
I searched and did not find that Conroe was excluded from the state regs, and so I don't know if there is a commercial harvest there or not. I do know they did harvest shad there come to think of it.
It is allowed in Montgomery County and 36 counties in Texas are listed as having commercial catfishing.
 
#15 ·
When I compare the actual depth now in any place on Livingston to the map depth of about ten years ago then there is a 5 to 6 foot difference in some places, maybe more.
I know in 2015 the bend of the river channel closest to Beacon Bay Marina, where the the river comes the closest to The Lump, it was 72' feet deep, and the lake was at 131 or pool level.
Now it's just 62' feet at the deepest. In seven years it filled in ten feet.
The lake has silted in almost ten to twenty feet since impounded 1969 in many places. Old maps show depths of 45 to 55 FOW in many places and now it's 35 feet deep.
I think the flat where I used to do great on winter time cats is 1 to 2 feet shallower in general than seven years ago, especially where the creek bottoms used to show as depth changes and now it's all the same depth.
And then no change in some places, it's those that for some reason trap the heavy silt load when it starts to drop out the water column.
The silt will stay suspended for a long time if the water is cold. If the lake muddies all the way to the dam during winter it really sucks. The water will not clear up until it warms up and the night time ambient temperature is above 50 degrees consistently.
That silt drops in spots where there is current that slows in a bend, or, in a tight channel that quickly that opens up and slows the current.
Such as where creeks enter the river, or, a little channel off the lake, where a sudden rise brings a load of logs/silt and the lake drops slowly leaving all of that debris/silt behind.
I do know the hard ridges and humps still maintain their depths, it's still 24 to 28 on The Lump, 24 to 25 at The Hump, and Prayer Ridge seems to be the same depth as well.