Pond Boss
Posted By: Omaha Walnuts = Water Clarity? - 09/29/09 09:51 PM
Ok, heard a weird thing from talking to an avid fisherman the other day. He said a pond he fishes regularly is surrounded by walnut trees and has absolutely crystal clear water. And he says it's all because of the walnuts falling from the trees into the lake. Something in the walnuts reacts with the water or something. Has anyone heard this? I did a Google search and came up empty.
Posted By: bobad Re: Walnuts = Water Clarity? - 09/29/09 10:35 PM
It could have some small effect on it, but walnuts are not likely the only reason the pond is crystal clear.

Any organic material can break down, producing 2 or 3 types of acid. Acids neutralize the charge in water molecules, allowing fine suspended particles to sink. Some people use hay or straw successfully.
Posted By: Rainman Re: Walnuts = Water Clarity? - 09/29/09 10:57 PM
Water clarity due to Black Walnut trees is due to the poison Jugalone (present in all parts of the tree). It kills almost any organism in the water! It will also kill horses and dogs.

http://en.wikipedia.org/wiki/User:Indeterminate/Fish_poison
Posted By: Omaha Re: Walnuts = Water Clarity? - 09/30/09 12:08 AM
 Originally Posted By: Rainman
Water clarity due to Black Walnut trees is due to the poison Jugalone (present in all parts of the tree). It kills almost any organism in the water! It will also kill horses and dogs.

http://en.wikipedia.org/wiki/User:Indeterminate/Fish_poison


Really? Huh. But he catches big healthy fish at this pond.
Posted By: 2catmom Re: Walnuts = Water Clarity? - 09/30/09 04:29 AM
You learn something new everyday here don't ya?
Posted By: Bullhead Re: Walnuts = Water Clarity? - 09/30/09 01:25 PM
My personal uneducated opinion is that it's a coincidence, like some people believe about the special rock I carry with me at all times that has kept me from being attacked by wolverines.
My pond is as clear as I have seen it right now, and there are no walnuts in its watershed.
Posted By: Omaha Re: Walnuts = Water Clarity? - 09/30/09 01:34 PM
Where can I get one of those rocks?
Posted By: Bullhead Re: Walnuts = Water Clarity? - 09/30/09 01:44 PM
Something tells me you watch The Simpsons.
Posted By: Omaha Re: Walnuts = Water Clarity? - 09/30/09 01:51 PM
 Originally Posted By: Bullhead
Something tells me you watch The Simpsons.


Doh!
Posted By: jeffhasapond Re: Walnuts = Water Clarity? - 09/30/09 02:41 PM
I carry a special rock that protects me against GSF heretics.







The trouble is every time I throw the rock at a heretic I have to find a new rock.
Posted By: Rainman Re: Walnuts = Water Clarity? - 09/30/09 02:50 PM
 Originally Posted By: jeffhasapond
I carry a special rock that protects me against GSF heretics.







The trouble is every time I throw the rock at a heretic I have to find a new rock.



I noticed your aim was pretty lousy too!
Posted By: Omaha Re: Walnuts = Water Clarity? - 09/30/09 02:51 PM
Tie a string to your rock for easy retrieval JHAP. I haven't tried this, but I've heard others who have and it makes sense.
Posted By: jeffhasapond Re: Walnuts = Water Clarity? - 09/30/09 02:56 PM
 Originally Posted By: Rainman
I noticed your aim was pretty lousy too!


Dude, you're critizing me on my aim? I didn't kill any PVC pipe. \:D
Posted By: jeffhasapond Re: Walnuts = Water Clarity? - 09/30/09 02:57 PM
 Originally Posted By: Omaha
Tie a string to your rock for easy retrieval JHAP. I haven't tried this, but I've heard others who have and it makes sense.


Excellent!!!

Posted By: Rainman Re: Walnuts = Water Clarity? - 09/30/09 03:05 PM
 Originally Posted By: jeffhasapond
 Originally Posted By: Rainman
I noticed your aim was pretty lousy too!


Dude, you're critizing me on my aim? I didn't kill any PVC pipe. \:D



My aim was perfect! It was the fact that I lost my glasses during the fishing tournement (and the plant blocking the pipe) that caused the problem----------------2 shots, 2 pipe kills! \:o
Posted By: jeffhasapond Re: Walnuts = Water Clarity? - 09/30/09 03:10 PM
Oh, so it wasn't so much an aiming problem as it was a target identification problem. Yea, you're right, that makes it sound much better.
Posted By: Rainman Re: Walnuts = Water Clarity? - 09/30/09 03:16 PM
Oops!
Posted By: jeffreythree Re: Walnuts = Water Clarity? - 10/03/09 05:06 PM
 Originally Posted By: Omaha
Ok, heard a weird thing from talking to an avid fisherman the other day. He said a pond he fishes regularly is surrounded by walnut trees and has absolutely crystal clear water. And he says it's all because of the walnuts falling from the trees into the lake. Something in the walnuts reacts with the water or something. Has anyone heard this? I did a Google search and came up empty.


It is the roots, not the nuts. The black walnuts produce juglone from their roots to stunt the growth of the competing vegetation. The leaves that fall in the pond will also transfer juglone when they decompose. If enough gets in the water, it could affect other vegetation in or around the pond. Black walnuts can also have a root system 4 times larger than their crown, and it is not uncommon for a large one to have roots 200-300 feet from the trunk. http://en.wikipedia.org/wiki/Juglone
Posted By: Rainman Re: Walnuts = Water Clarity? - 10/03/09 06:53 PM
IIRC, the roots have the highest concentration followed by the leaves, then the bark. The outer shell covering has a good deal in it as well. The shell has a small amount and the meat of the nut does not contain any.


Useless trivia---The black walnut hull comprises 70-95% of modern automotive brake linings.
Posted By: Ric Swaim Re: Walnuts = Water Clarity? - 10/03/09 10:16 PM
Native americans used Black Walnut trees to poison fish.
 Quote:
Cultural traditions and archaeological research suggest that a large number of indigenous tribes across the Americas used saponin poisons from many different plants to harvest fish. The Catawba, Cherokee, and Delaware made a fishing poison from the ground bark of Black Walnut trees, Juglans nigra. The Yuchi and Creek used the roots of the Devil’s Shoestring, Symphoricarpos orbiculatus, and the fruit, twigs and buds of the Horse Chestnut, Aesculus hippocastanum L., to make two similar fish poisons. The Rappahannock made a fishing poison by mixing cornmeal with fish brine and allowing it to stand overnight before use. Cherokee tribes used the berries of Polk Sallet, Phytolacca Americana, to produce saponins for fishing. The Costanoan Indians of the California area used the pounded leaves of Turkey-Mullein, Eremocarpus setigerus, and the fruits of California Buckeye, Aesculus californica (Bocek, 1984), as well as the entire crushed Soap Plant, Chlorogalum pomeridianum; Indian Hemp, Apocynum cannabinum; Pokeweed, Phytolacca americana; and Indian Turnip, Arisaema triphyllum (Goodchild, 1999). The pulp of Lechuguilla leaves (Agave lechuguilla) are used by Mexican Indians (Alloway, 2000). Further south, in Venezuala, indigenous cultures used the fruiting branches of Soapberry, Sapindus drummondii, and the fruits of Mexican Buckeye, Ungnadia speciosa in the manufacture of their fish-stunning poisons. Not far from there, the Engoroy of Ecuador used and continue to use theThophrastaceae endemic, Jacquinia sprucei, a shrub whose globulous fruits contain high levels of saponin.


Very intresting stuff: http://www.survival.com/fish.htm

Never knew you could make your own Rotenone.

 Quote:
Rotenones

The second group of fish poisons, the rotenones (a flavonoid), are found almost exclusively among legumes (Papilionaceae, Mimosaceae, Cesalpiniaceae), and more specifically in the family Fabaceae. Rotenone was first isolated in 1929 in the roots of its Peruvian namesake, the plant Rotenone (Lonchocarpus sp., locally known as barbasco or cube). Two species of this genus, L. utilis and L. urucu, quickly became an export product as an insecticide due to their relatively high (5-12%) rotenone content. Two related species from Guyana, L. martynii and L. chrysophyllus contain only 2.4% rotenone and are not considered commercially competitive (Van Andel, 2000). Another rotenone (L. nicou) is employed against piranha, and will kill them and their eggs in only 15 minutes at a concentration of 3ppm (3mg/kg) (Duke, internet).


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