Pond Boss
Posted By: TexasHart Green Sunfish Eradication.... - 04/21/03 09:33 PM
My family's 200 acre place has recently been placed in my care. We have a 3 or 4 acre pond that has historically been a decent bass pond. I can remember us catching 3lbs - 6lbs LMBs all the time about 6 or 7 years ago. The biggest I've caught this year, was 2lbs 5oz. But I catch a large mouth perch about every other cast when using smaller lures. I say, "Large-Mouth" perch because I don't have a clue what they are. I can handle them by their mouth just like a bass. And all our bass are skinny. It seems to me these ferocious little perch type fish have taken over completely. I know what a blue gill looks like, they have tiny little mouths, but these I'm catching have huge mouths by comparison. They are green with bright yellow fins. They are fairly pretty fish, but I'm tired of catching nothing but them. The bigger ones are about the size of my hand. Most are smaller. Help! What has taken over???

Thanks,

Jason
Posted By: Greg Grimes Re: Green Sunfish Eradication.... - 04/21/03 11:41 PM
My guess would be green sunfish. Their fins are light colored around the edges. I consider them an undesirable species b/c they only get about a 1/4 lb. You may be faced with draining the pond if they are positievely identified as green sunfish. Sorry to deliver the bad news.
Posted By: Jim Re: Green Sunfish Eradication.... - 04/22/03 12:32 AM
I would agree with Greg, it certainly sounds like Green Sunfish to me. If you want some info, do a Google search for Green Sunfish, there are several sites that have pictures posted. However, your description of a "Bluegill" with a big mouth probably seals it. A pond that size would be difficult if not impossible to fish out, so draining is likely to be the best answer. Since the LMB population has been wrecked, I think you can be philosophical about killing everything in the pond and starting over. Great results are possible in 2 years if you follow the advice of the many talented people on this site.
Good Luck
Jim
Posted By: jbrockey Re: Green Sunfish Eradication.... - 04/22/03 12:42 AM
just out of curosity, why not poison them out instead of draining the pond?
Posted By: Bill Cody Re: Green Sunfish Eradication.... - 04/22/03 01:39 AM
Draining before poison reduces the volume of water in the pond so the rotenone cost is not so expensive.
Posted By: TexasHart Re: Green Sunfish Eradication.... - 04/22/03 03:12 AM
Whoa!!! Drain the pond????? A. How could I possibly do that. B. I've seen large bass still in the pond. Perhaps I was too low on my surface estimate. The dam is 1/10th of a mile wide, and we have pictures of its construction in 1982, probably 20 or 30ft deep when its full. The dozers and earth-movers looked pretty small at its base.

I can concieve of no way to drain this body of water, short of dynamite, thereby destroying the whole thing. I finally decided it was green perch in the tank, I verified some pictures online. I think I'll have a couple of green perch tournements at the tank and try my luck at thinning them out that way. Man, you guys are scaring me!

Jason
Posted By: shan Re: Green Sunfish Eradication.... - 04/22/03 04:16 AM
Jason,

ever siphon gas out of a tank? build a siphon out of 8-12 inch pvc and stand back. build a couple out of 4 inch pvc and give it a week. Your 3-4 acre pond will be drained.

it is absolutly necessary to drain the pond before treating with rotentone. A) cuts the cost of rotenone down B)fish will find places to hide from the poison if the pond is not drained.

I have never seen a pond sucessfuly eradicaed of competing species without draining.

If you dont drain the pond and start over you will always have problems with green sunfish. You can improve your situation by harvesting them, you will never get rid of them. So get ready to have your green sunfish tourny every year, from now on.

If it were mine I would not hesitate to start over. with the right pond management techniques you will have more than just a few big bass, much faster than you think.

keep reading
Posted By: Dave Davidson Re: Green Sunfish Eradication.... - 04/22/03 10:56 AM
Yep, You can siphon that water out pretty quickly. However, rain in West Texas around Strawn is pretty rare. I believe, unless you have one heckuva watershed, that I would try the green sunfish tournament. However, Greg and Shan are professionals and I wouldn't doubt anything they say about what you are facing. On the other hand, they are from Georgia where it rains. You have a Catch 22 situation.
Posted By: Greg Grimes Re: Green Sunfish Eradication.... - 04/22/03 01:42 PM
Dave good point about rainfall. If you do not want to drain, I have luck fighting off green sunfish in ponds where hybrid bream were stocked. The ponds basically had some pure green sunfish in the ponds and we stocked coppernose bluegill in them (maybe some can help with the explantation) but I feel the reproductive success of the bluegill helped the situation and did see any greens after about a year. So consider stocking bluegill and pulling out every green sunfish you catch and release all bluegill back into the pond. This along with prayer may get you out of the situation but it will not be easy.
Posted By: TexasHart Re: Green Sunfish Eradication.... - 04/22/03 02:29 PM
Thanks everyone for the words of encouragement and ideas. I didn't mention it, but rainfall was my biggest concern. We've been a little on the dry side for a couple of years now, actually since the warmer weather has started, this is the lowest its been in some time. I could siphon the tank down, then poison it, but then I'd probably have a tad-pole tank for 5 years waiting on rain...

Bluegill stocking sounds like a better alternative to draining, but I don't understand how bluegills will deplete the Green Sunfish population. It seems I'd just be introducting 'another' thing for the greenies to eat! It would give my bass more to munch on, but the greens would get the benefit too, at least on smaller bluegill.

Anyone know where I could buy some 14lb Bass that have been trained to eat green sunfish??

Keep the ideas coming guys, I'm all ears.

Jason
Posted By: jbrockey Re: Green Sunfish Eradication.... - 04/22/03 05:00 PM
I had an idea the other day about how to control green sunfish and not hurt the other fish (my dad thought it was a bad idea but I thought I could ask anyways).

In the reading I have done it says that green sunfish can survive in water quality too poor for ohther fish BUT they are very sensitive to even slightly brackish watter. So my idea is, would it work to drain the pond half-way and then add enugh salt that wouldn't hurt the bass or bluegills but would kill the greenies or stress them enough to make them an easy meal for the bass?

Like I said it was just a thought but, has anyone had experence with this kind of greenie control or even know if it is possible?

thanks in avance for any feedback
-Scott
Posted By: TyW33 Re: Green Sunfish Eradication.... - 04/22/03 08:25 PM
What would it do to the pond plants?
Posted By: Jim Re: Green Sunfish Eradication.... - 04/22/03 09:28 PM
In a pond like this with little or no throughput, adding salt will wind up being a "permanent" increase in the salt level. It would be very difficult to clear that up lacking large runoff and overflow.
Jim
Posted By: shan Re: Green Sunfish Eradication.... - 04/23/03 12:41 AM
I did not consider your rainfall situation either. removing all the green sunfish you catch is a good idea. I assume that since the green sunfish population is high that each fish is relativly small. you may consider crowding the pond with adult largemouth bass. As long as the bass you stock are large enough to eat the sunfish. Let the bass do your work for you, then when sunfish numbers are down, catch some of the bass out and consider stocking large bluegill. As long as your pond is a true 4 acres you should not have much trouble catching out enough bass and it would be more fun than catching small sunfish

I have had good sucess correcting overcrowded crappie populations with this menthod. of course its easy for me to come across a hundred or so bass 14-16 inches in length (shocking boat). Even if you cant get you hands on that many bass, it wont take many adult bass to start the ball rolling. 5 fish per acre will make a significant difference over the course of 2 years.

you may also consider hiring someone with a shocking boat. green sunfish are pretty easy to shock up, you could just keep out all the sunfish caught during the shocking survey.

just some thoughts
Posted By: Bill Cody Re: Green Sunfish Eradication.... - 04/23/03 02:19 AM
An old, long time in the business, fish hatchery owner always tells me that LMB in his experience will eat green sunfish before they will eat bluegill. He says it is a forage fish shape thing where the greens are more slender and easier for the bass to swallow than bgill of similar length. He has often strongly reduced green populations by stocking heavy with larger bass that can eat the most common size of green sunfish.

This old timer deals with green sinfish all the time since he raises green sunfish and sells a lot of them for University Optic research.

PS. TexasHart, will you please go back to your first post above and click on the paper&pencil button on the top left of your question? This will allow you to edit/change the message and the topic's title. Go up to the title and change perch to greensunfish. Perch is too confusing during word or topic searches when the topic here is about gsunfish. Thanks. BC
Posted By: TexasHart Re: Green Sunfish Eradication.... - 04/23/03 02:32 PM
Bill,

Sorry about that, I grew up calling all types of sunfish "perch".

Jason
Posted By: Critterhunter Re: Green Sunfish Eradication.... - 04/23/03 04:09 PM
Very interesting thread. One of the fish I've read that should be off limits for most ponds due to overpopulating.

Didn't catch how big your pond is....but here is one more idea to kick around. What if you used a feeder or just hand fed the fish in a specific spot at a specific time every day. After a month or so of this when the green sunfish become used to it place a large net on the bottom under the spot you are feeding them from. As they group up to feed net what you can and then sort through the catch, throwing back everything but the greens. Then take a week's break of not netting them but still feeding them to fool more into the next netting.

That, combined with some extensive "catch and pitch" rod fishing (maggots below a bobber would be a good choice) might be enough to put some serious hurt on them. Combine that with the above advice of stocking more gills and/or adding more large bass might help greatly.

Oh, and if you don't care to net them go pick up some H1000 firecrackers and just pitch one into the feeding school every so often. :')

You could also throw in some flathead catfish but then that brings up a bigger problem. :') Reminds me of the one Simpson's episode where they planned to let snakes go in the city to eat some invasive lizzards. "Then how do we get rid of the snakes?" "We release some snake eating apes." "Then what do you do about the apes?" "That's the beauty of it, when winter comes they'll all freeze to death."
Posted By: Greg Grimes Re: Green Sunfish Eradication.... - 04/24/03 01:25 AM
Critterhunter good idea this type net is called an umbrella net. We did the samething you are talking about and the pondowner took out over 400 common carp in about a year. This along with shooting them near the spillway and electofishing pretty much got rid of them in his pond. Maybe all the methods mentioned will help you rid of the greens without draining after all.
Posted By: Bill Cody Re: Green Sunfish Eradication.... - 04/24/03 02:00 AM
TexasHart -- Good title change. Thanks
Posted By: Norm Kopecky Re: Green Sunfish Eradication.... - 02/22/04 05:25 PM
This is an old post but to me is an important topic. Why wouldn't channel catfish correct stunted populations of green sunfish, crappie or bluegills? Cecil, I think you said that channel cats have to be about 2 lbs to really hit these species hard. It seems that 1-2 lb. channel cats are easy and cheap to buy. This sounds easier, cheaper and more fun than draining and killing all of the fish. The big question is, would it work?
Posted By: Bill Cody Re: Green Sunfish Eradication.... - 02/23/04 02:48 AM
Norm - I think LMbass would do a better job of thinning greenies than catfish. Here is why and it ultimately goes back to your old topic of niche behavior & habitat selection (diversity).

Greenies tend to frequent shallow shoreline areas with some type of cover. LMbass also hang out in these areas, thus the two interact and predation will be high on the greenies. Whereas the cafish are deeper water fish and as far as I know do not move into real shallow structure dense areas at night to feed. The greenies at night will probably be resting in cover and protected somewhat from the feeding cats. Cats will be getting fish & critters that are resting more along the edges and periphery and not deeper back in shallow cover. I'm not saying cats won't eat greenies but I think bass will eat more greenies per predator than cats. Also the amount of shore line cover will definately affect cat predation efficiency on greenies.
Posted By: Norm Kopecky Re: Green Sunfish Eradication.... - 02/23/04 03:17 AM
Thanks Bill. In a lot of places green sunfish are one of the favorite baits for catfish. Large catfish are a whole lot cheaper than large LMB which is why I considered this a option.
Posted By: Bill Cody Re: Green Sunfish Eradication.... - 02/24/04 02:34 AM
Norm and those interested. One would not have to buy real large sized LMbass. You could stock 6" to 8" LMB and they would soon if not right away start eating smaller greenies (1.5-2"). Note the green sunfish is noticably more slender bodied than bgill. Thus bass can and often choose to eat them in preference to bgill because greenies are easier to swallow and provide more "meat". I am sure this is why the "Old Timer" in my Apr 22 post says that bass will thin out greenies before they "work over" the bgill.

Catfish would also thin out greenies just maybe not as quickly and as effectively as LMB.
Posted By: TyW33 Re: Green Sunfish Eradication.... - 02/24/04 02:56 AM
Grass carp would increase bass predation by thining cover, and would probably be a safer and more effective addition than catfish.
Posted By: Bob Lusk Re: Green Sunfish Eradication.... - 02/25/04 12:53 AM
Here's my two-cents.
Had a similar dilemma several years ago. Came across a 3 acre lake directly downstream from a recently closed turkey farm.
Water was rich, deep green bloom. Visibility was 6 inches. Landowner reported massive fish kill two years prior, and since the turkey farm closed, he was interested in revitalizing the lake.
Electrofishing turned up thousands of green sunfish, several size classes.
Best I could tell, 250-300 pounds per acre in that fertile water.
80% of the creatures were smaller than 4 inches.
We decided to stock 10-12" bass, 60 head, and add 500 adult bluegill.
Here's our reasoning. Green sunfish spawn once, yearly. We decided not to kill them, but to stock bass which could eat them.
Next, we managed the bloom with bacteria and algaecide (not at the same time), to try to keep visibility near 24 inches.
The theory was for bass to utilize big numbers of green sunfish, then over time, bluegill would out-reproduce, and eventually outcompete green sunfish.
Then, bass spawn, baby sunfish are eaten, and within a year or two, bluegill become established, green sunfish numbers drop, and bass grow like little green hotcakes.
Subsequent electrofishing surveys proved the theory.
18 months later, bass relative weights were 115%, green sunfish comprised 60% of the forage fish. Bluegill and baby bass were 40%. But, 30 months later, large bass relative weights were 90-110%, intermediate bass Wr was 85-90%, bluegill made up 80% of the food chain, and green sunfish were going the way of the buffalo, so to speak. And, green sunfish left were adults. No babies.
We shifted from catch and release to a slot limit for intermediate bass, and continued.
Landowner sold out, I lost track after that.
Posted By: Redfishman Re: Green Sunfish Eradication.... - 03/11/04 01:56 AM
I Live in No. Vrginia. My father in law's pond (1.5 acres) was chock a block with greenies... I never caught any other kind of fish. I bought ten 10" tiger muskies from Minnesota Muskie Farm(a cross between Pike+Muskellonge that is sterile) and put them in the pond. I don't fish it much but I hooked a 10lb plus Tiger a few years later. Another few years later i fished again regularly I was uanble to catch anything. I think they ate every Greenie they could find! now there are more greenies coming back. Thesis: pond was originally imballanced in stocking ... Greenies took over... Tigers knocked them out, died off (they only live 6 years or So) I didn't stock bass or trout + Tigers didn't reproduce so greenies are rebounding. Kill greenies catch Tigers!
Posted By: DrCochran1 Re: Green Sunfish Eradication.... - 03/19/04 08:40 PM
We've all been there. This lends to the importance of keeping an eye on your lake. These little guys are voracious and devistate your forage with their big mouths. How many times have you almost fell in the lake trying to chuck a GSF on the bank from a boat only to see the darn thing flop back into the drink!!! In the Ozarks we call them blue perch or shade perch.
Posted By: HOSTY Re: Green Sunfish Eradication.... - 03/23/04 02:27 AM
bill with saying that why not stock say 20% green when putting in b/g. by the way im also from ohio and i had heard the same thing from a guy 48 yrs in the hatchery buisness.
Posted By: Bill Cody Re: Green Sunfish Eradication.... - 03/23/04 02:37 AM
Hosty - I would never add green sunfish to a pond due to their posibility to go overabundant. They have more negatives than positives in a bass bgill pond.
Posted By: Evinrude Re: Green Sunfish Eradication.... - 04/12/04 02:45 PM
I can't help but laugh at all you guys trying to help get rid of the green sunfish. In my neck of the woods we call them slick jacks, and they are highly prized as flathead catfish bait. I just built a pond for the sole purpose of raising them.

One man's treasure is another man's trash.
Posted By: Ric Swaim Re: Green Sunfish Eradication.... - 04/12/04 07:38 PM
evinRude,
If you care to read further on this site you will discover it's all about goals. What do you want out of your pond.
Some want a trophy lmb pond others want trophy bg., some want trout, some smallmouth, some even want gar, & now we have someone who wants green sunfish. That's ok too.
However as the experienced & educated professionals on this site would be more than willing to freely lend you their expertise, intelligence suggests it would not be prudent to throw such advise away, though over the years I have observed there are those who can only learn from their own experience. I'm sure that isn't you. :rolleyes:
Posted By: Brian Loberger Re: Green Sunfish Eradication.... - 04/13/04 03:26 AM
I was told by a pond pro today that my hybrid bluegills would spawn into greenies and they would overtake the pond. He also said that bass would not eat the green sunfish as a first choice. Any comments ?
Posted By: Dave Davidson Re: Green Sunfish Eradication.... - 04/13/04 12:18 PM
Bryan, I have often heard that Hybrids can and will spawn and will revert to Green Sunfish. I once had a small pond full of them and they certainly spawned along with the bluegill. I see no reason to have them. Over a long time, 10 years or so, there was no growth difference. Both got huge.

I can see no reason why a bass or catfish or anything else would pass up a green sunfish in favor of anything else. If they will hit a metal spinner bait or a wood or plastic crank bait, you know they are opportunity feeders. Sounds like a lot of BS to me.
Posted By: TexasHart Re: Green Sunfish Eradication.... - 04/14/04 08:45 PM
Wow! This is a long thread, over a year... (Almost a Year)

Thanks everyone for their ideas. The goal of this body of water is to become a great bass pond again. I'm responsible for introducing the green sunfish originally. I don't hate them or anything, but their mouths are too big and they compete with the bass I'm trying to raise.

Evinrude will probably come out and trap all of these things he can haul.

I have another tank with channel cats in it. Would it be wise to move some to the bass tank?

Thanks,

Jason
Posted By: Zach Re: Green Sunfish Eradication.... - 04/15/04 12:08 AM
If you want a great bass pond it would be better not to put the channel catfish in. When the catfish get over a couple of pounds they become preditors. They will compete with your bass to much bait wise. The baitfish will be hunted during the day by bass and by channels at night.

Anyway how has your eradication of the greenies gone. I been hitting my pond with greenies hard with Gulp! nightcrawlers(red) and tiny beetle spins.
Posted By: TexasHart Re: Green Sunfish Eradication.... - 04/15/04 03:40 AM
I haven't really been after the greenies like I should. I've been chasing the Whites and Blacks @ Leon for the past few weeks. Added about 8 pounds of blacks to the pond last weekend. That was only two fish!!

Once it gets a little warmer, I'll be catching more of the greens... I hope Evinrude can come and make a huge dent in their population. I hate to waste the fish, if someone can get some use from them I'm all for it.

I'll keep the channels separate, besides they're almost pets. They hear my truck and start circling when go to feed them.

Jason
Posted By: Bing Graffunder Re: Green Sunfish Eradication.... - 04/26/04 03:39 PM
On a ranch I used to own I found very similar conditions that you have described. The solution recommended to me was to stock breeding sized copper nosed bluegills fairly heavily. Since they compete with the Green sunfish for territory and spawn four times a year they croud out the green sunfish. Also spend some time fishing with small spinners for the greenies. They are very aggressive and are easy to catch. You can thin them out this way. Last, be sure you have plenty of bass to eat the greenies, stock mature fish if you have to. I did. After two years, the green sunfish were severly reduced, the coppernosed had established themselves and prospered, (be sure to fertilize the lake and feed protien) and the bass population both in size and numbers flourshed. There is usually a positive solution to most problems. Remember too, this is fun stuff so make your remidies fun. Hope this helps. B
Posted By: Bdavid Re: Green Sunfish Eradication.... - 05/28/04 06:26 PM
I’m echoing some of what’s been said here. I have experience managing out greensuns out of two different 1-acre ponds. I added 30 adult bluegills and 10 12” bass per acre.(Gills and bass were already established)
I started a feeding program for the gills after the greens spawned.
I think greens only spawn once while gills will spawn as long as they are fat and happy.
That’s not a scientific observation and may be disputed by the smarter folks on this board.
Over 3 years the gills seem to have crowded out the greens. I also pitched all the greens out I’d catch.
On a rare occasion I catch a natural highbred but no true greens.
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