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Joined: Jan 2009
Posts: 28,505 Likes: 829
Moderator Ambassador Field Correspondent  Lunker
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OP
Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,505 Likes: 829 |
I had a friend fishing the pond last weekend with his wife and 5 yr. old son. They caught a few Yellow Perch that had a blue mouth on the inside. I asked Bill Cody about it and he wanted pictures.... So, they came over again yesterday and caught one, and now we have pictures. Only a few YP had the blue mouth, and they were the larger females, 13" long or so. So Bill, here are your pictures. Any idea why the blue coloration? As you can see from the pictures, it's not just one fish.....     
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Joined: Jun 2008
Posts: 6,979 Likes: 14
Ambassador Lunker
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Ambassador Lunker
Joined: Jun 2008
Posts: 6,979 Likes: 14 |
Any Perch with blue coloration externally?
"Forget pounds and ounces, I'm figuring displacement!"
If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.
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Joined: Oct 2013
Posts: 6,088 Likes: 96
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Joined: Oct 2013
Posts: 6,088 Likes: 96 |
Yep. Seen that before in my kids. Comes from sucking on a grape Popsicle  in the summer time.
Last edited by snrub; 06/19/16 11:28 AM.
John
I subscribe to Pond Boss Magazine
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Joined: Jan 2009
Posts: 28,505 Likes: 829
Moderator Ambassador Field Correspondent Lunker
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OP
Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,505 Likes: 829 |
Any Perch with blue coloration externally? None. At least none observed. Water has a lot of tannins in it, visibility is roughly 24" - 30" due to the tannins.
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Joined: Apr 2002
Posts: 15,140 Likes: 488
Moderator
Ambassador
Field Correspondent Lunker
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Moderator
Ambassador
Field Correspondent Lunker
Joined: Apr 2002
Posts: 15,140 Likes: 488 |
I have never noticed yellow perch with the blue hue inside the mouth. Interesting character. Possibly a strain characteristic or a response to the environment or maybe some sort of chemical deficiency?
Last edited by Bill Cody; 06/19/16 06:55 PM.
aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management
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Joined: Jan 2009
Posts: 28,505 Likes: 829
Moderator Ambassador Field Correspondent Lunker
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OP
Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,505 Likes: 829 |
Bill:
This year is the 2nd year in a row that the pond has been heavily stained by tannins. The YP are Lake Erie descendants, I sourced them from Cecil.
As for food, I have been feeding Optimal Bluegill food since last year, and started feeding the sample bag of Optimal Yellow Perch food that I received earlier this year.
Only the larger females are showing the blueish color, and not all of them.
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Joined: May 2012
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Joined: May 2012
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Joined: Jun 2012
Posts: 2,058 Likes: 7
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Joined: Jun 2012
Posts: 2,058 Likes: 7 |
Must have bagged the wrong product in the Optimal Bluegill food bag with "Optimal Bluemouth food".
It would be interesting so see them under UV black light. Might be natural colour from being protected from the UV light by the tannins. When pulled from the water the UV light shows a blue huge.
Last edited by DonoBBD; 06/20/16 07:27 AM.
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Joined: Jan 2009
Posts: 28,505 Likes: 829
Moderator Ambassador Field Correspondent Lunker
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OP
Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,505 Likes: 829 |
No idea. C&R unless hooked too deep. With LMB in the pond I especially want the females to stay in the pond to reproduce, and the larger ones look to be females.
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Joined: Jun 2012
Posts: 2,058 Likes: 7
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Joined: Jun 2012
Posts: 2,058 Likes: 7 |
We are seeding another pond with some of our young perch. Our perch in the old pond with no pond dye look blue when we let them go in our buddys pond.
We only use a half a pint for the acre size pond and treat it four times a year.
I am betting the perch are taking in the pond dye some how.
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Joined: Jan 2009
Posts: 28,505 Likes: 829
Moderator Ambassador Field Correspondent Lunker
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OP
Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,505 Likes: 829 |
We are seeding another pond with some of our young perch. Our perch in the old pond with no pond dye look blue when we let them go in our buddys pond.
We only use a half a pint for the acre size pond and treat it four times a year.
I am betting the perch are taking in the pond dye some how. Donno, there is no dye in my pond, only tannins from leaves when the water ran above ground in the woods, then into the pond earlier this year.
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Joined: Jun 2012
Posts: 2,058 Likes: 7
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Joined: Jun 2012
Posts: 2,058 Likes: 7 |
Good example Kelly!! I like the video.
I use a super concentrated dye where 1 qt dyes the same water volume as a gallon of the "labled" dye. I used 18 quarts to dye 24.5 million gallons of water in a large shallow pond and had to "bump" the dye after 60 days with another 9 quarts. It definitely helped lengthen the interval between weed/algae treatments. That "bump" was enough to keep the pond colored for the rest of the year. Wow maybe the perch have blue mouths from pond dye? I use two quarts a year in our pond that is 1 acre when completely full and 1 million gallons. Cheers Don. Sorry thought it was the same pond as your above statement from another thread. Cheers.
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