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#560320 08/07/23 01:11 PM
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Had a customer call about some newly appearing ground water with minnows so I went and pulled a seine about 10' and got about 45lbs of these. Looks like good SMB feed to me!
Northern Plains Killifish..

[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]

Snipe #560321 08/07/23 01:28 PM
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Wikipedia lists several known parasites, would a salt dip or a chemical parasite dip be recommended before stocking. Or are the parasites particular to this one species ? I would love some, if parasites aren't a problem.

Snipe #560322 08/07/23 01:37 PM
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Would depend if they are all external. These are very common in NW KS and parasites haven't been an issue.
They do carry white grubs which are fairly common and near impossible to completely eradicate.

Snipe #560324 08/07/23 02:19 PM
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Never heard of a killifish. Neat looking animal.


It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
Snipe #560331 08/07/23 07:33 PM
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Yes interesting fish the northern plains killifish. Maximum size is around 6". It could be a very good forage fish in some pond habitats. I need to learn more about them; especially the spawn habits and needs. Mouth shape and position suggests they spend a lot of time near the surface .


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Snipe #560337 08/08/23 12:09 AM
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Credit: Aquarium circle, May 1, 2022

Northern plains killifish is the common name of the killifish species Fundulus kansae of the Fundulidae family. Their populations can be found in the Mississippi River, Colorado River, Rio Grande, and other river systems in North America.

The natural habitats of northern plain killifish are usually shallow river and stream with lower, moderate, and swift, turbid water flows. Sometimes, they can be found in lakes.

They can live in brackish, alkaline, and salty water conditions, better than many local fish varieties. The water temperatures that they can do best are between 20°C and 25°C.

The male of northern plains killifish has wider and darker bars than the female. During the breeding season, most of the fins of the breeding male turn to yellowish-orange coloration, except the back fins. Meanwhile, the fins of the female and immature individuals are plain or yellowish.

They can be found burying the whole body in the substrate while only showing eyes and mouth. This behavior of the northern plains killifish is to respond to stress and may help protect themselves from sunlight, predators, and parasites.

The northern plains killifish is reported to move in schools and with the same size species.

The northern plains killifish eats primarily aquatic insects and other invertebrates mainly located on the water surface near their heads, such as chironomid larvae, copepods, nematodes, and other small animals. Besides the aquatic insects, they sometimes eat aquatic plants.

SPAWNING SEASON
It occurs from April to August and at the water temperature of 27.7°C (80°F)

Additionally, their spawning activity may be stimulated by a change in water temperature or a sudden water freshening, which often occurs when there is moderate or heavy rain in their spawning season.
They typically spawn over a sand or gravel bottom in shallow water with a depth of 6 cm – 10 cm.


Males do not establish territories but become aggressive toward each other while spawning and compete vigorously for the attention of the females; spawning occurs during a brief pairing of a single male and female (Koster 1948).

When the spawning occurs, the males are not territorial but aggressive towards each other and usually have fiery competitive behavior to attract the females. The spawning happens during a short pairing of one male and one female.

Last edited by Snipe; 08/08/23 12:12 AM.
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Snipe #560341 08/08/23 09:17 AM
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I have seined Killifish in my stream about 1/2 a state south of Snipe's location.

They were by far the heaviest minnow in the stream. I would estimate that they weighed at least 500% more than the heaviest Gambusia.

I therefore believe they would be an excellent forage fish in our ponds.

However, I don't read about anybody using them in ponds. I suspect they reproduce much better in streams. I would love the hear anyone's experiences if they know of a pond environment where Killifish have been developed as a significant forage species.

Snipe #560343 08/08/23 10:00 AM
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I think it would be a one and done deal Rod.. a snack.
The location we found these in, I could probably seine 1000lbs and use for forage.
After a bit more research I have to wonder about all the potential parasites and how that could affect other things. I also don't think it's normal to find this number of fish in one small location, I believe the floods put them here.

Snipe #560349 08/08/23 04:19 PM
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Thanks Snipe!

I think your comment matches my multi-year observations on the population in our creek.

The Killifish would be awesome pond forage, if they were a pond minnow! (And certified parasite free.)

Fortunately, I have an abundant supply of locally acclimated Gambusia to add to any new ponds going in on our farm.

Snipe #560364 08/08/23 09:09 PM
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Rod, I wonder if the killifish might do better if you created a current in your pond. Just a thought.


7ac 2015 CNBG RES FHM 2016 TP FLMB 2017 NLMB GSH L 2018 TP & 70 HSB PK 2019 TP RBT 2020 TFS TP 25 HSB 250 F1,L,RBT -206 2021 TFS TP GSH L,-312 2022 GSH TP CR TFS RBT -234, 2023 BG TP TFS NLMB, -160




Snipe #560366 08/09/23 06:36 AM
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I'm in south central KS and have seined them in streams my whole life. Never seen signs of them in a pond or lake though. I'm guessing t4ying to establish them in a pond would be an upstream battle.

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anthropic #560377 08/09/23 09:31 AM
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Originally Posted by anthropic
Rod, I wonder if the killifish might do better if you created a current in your pond. Just a thought.

Yep.

I have contemplated building a recirculating "run type" pond that would work for walleye to reproduce, or even my stream minnows like the killifish.

Then I looked at the current electricity prices and decided that I did not want to work an extra job!


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