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silver perch and trout fingerlings in a dam
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Author:  Phil BP [ Dec 4th, '10, 14:14 ]
Post subject:  silver perch and trout fingerlings in a dam

I have just transfered 100 trout fingerlings (100mm) from FT to a dam. The water was starting to heat up in the tanks and I wanted room for silver perches. However, a couple of days ago I noticed there is a large (~1.5kg) silver perch in the dam with them (left over from a previous stocking). I have tried to catch the perch with a rod to no avail. Just wanted to know if you think the fingerlings will survive or become perch feed. The dam is full of all sorts of criters so there is plenty of food for all at present.

Author:  mantis [ Dec 4th, '10, 15:18 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

I dont think the silver will worry them. At the age it is its probably more herbivore than carnivore

Others will know more than me tho

Author:  Troutman [ Dec 4th, '10, 16:52 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

Yeah you wont have a problem with the Silver going for the Trout. At 1.5kg their mouths would still be too small to fit a 100mm trout in it and I dont think he would be bothered with the chase if their is plenty of other food in the dam. What size is the dam??

Author:  vlt [ Dec 4th, '10, 18:06 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

I suspect it will be the other way around! Once the trout get big enough, any fingerlings you put in there will be trout food.

Author:  Phil BP [ Dec 4th, '10, 18:45 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

The dam is 1.2 meg, about 4 meters deep and about 40 x 30 meters in size. Im glad to hear the Silver wont be bothered with the trout. I bought the trout to get my system cycling knowing I wouldnt be able to keep them over summer but I thought I could put them in the dam when it got too hot. Didnt count on the large silver though. Anyway it sounds like they will be fine so now I can concentrate on silvers in the empty tank. Getting 100 delivered on Wed from Glenwaters. Feeling reassured ! Thanks

Author:  Jamey [ Dec 4th, '10, 19:11 ]
Post subject:  silver perch and trout fingerlings in a dam

I just picked up 50 from Glenwaters today!!

Nice looking fish, hope they like shitting :)

Author:  Troutman [ Dec 4th, '10, 20:03 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

Thats way too many Trout for a dam that size if you want them to grow. Hopefully the shags thin them out a bit for you!

Author:  RupertofOZ [ Dec 5th, '10, 00:22 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

Thought the "old rule" was one fish/stride around the perimeter Troutman... 100 wouldn't seem too over the top... :dontknow:

How many would you recommend??

Author:  Phil BP [ Dec 5th, '10, 04:36 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

Yeh that was my belief as well, one fish per stride. Is that not correct ?

Author:  Troutman [ Dec 5th, '10, 07:20 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

At one fish per stride that would be 140 fish in a dam of 1200m2 such as yours. There is no way your dam can support that many (or even 100) trout (and they grow to a reasonable size) without additional feeding and then aeration would be needed. I think that formula was set up for the stocking of fry which would allow for the large losses you get when you stock the fish at a small size.
When you stock the fish at 100mm like you have the survival rate should be over 90% so it wont take them long to eat out the available food in a dam that size. As an example of stocking rates that I suggest for Trout, there is a dam near me which is 9 acres (36 000m2) which makes it 30 times the size of yours and we only put in about 120 fish (100 - 150mm) a year and that provides for good sport and the fish get up to 1.5 - 2kg in size.

Author:  Phil BP [ Dec 5th, '10, 07:54 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

OK it certainly looks like Im overstocked. I was intending to feed them once the available food decreased. How many do you think the dam might carry with additional feeding ?

Author:  keith [ Dec 5th, '10, 09:02 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

i found a pretty good resource for ponds, pretty sure that's what you're talking about when you say dam's
google pond boss, pretty good forum

Author:  Troutman [ Dec 5th, '10, 15:46 ]
Post subject:  Re: silver perch and trout fingerlings in a dam

Phil BP wrote:
How many do you think the dam might carry with additional feeding ?


It depends on what you want to achieve. I usually stock fish into dams so that the owners can expect to catch some nice sized fish in the shortest possible time. If you are just putting them in there so they will survive the summer and then move them back to the AP tank its no big deal if they dont grow much. If you want them to put on weight and provide good fishing then I would have put no more than 25 fish in a dam the size of yours.

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