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 Mar 31 2008, 12:10 PM
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#1
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Junior Member  Group: Members Posts: 13 Joined: 20-August 05 Member No.: 7,141  |
could pine needles falling in a pond cause fish deaths
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Mar 31 2008, 12:10 PM
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Apr 1 2008, 07:49 AM
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#2
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 Photo Moderator Group: Anglers' Net Gold Fish Posts: 2,219 Joined: 7-January 03 From: Cornwall UK. Member No.: 3,268 |
I can't see any reason why they should, and have not heard of any.
Many of our wild and farmed waters are surrounded by pine forests, and must suffer from needle drop and leeching from the forest banks. But they still hold a heathy stock of coarse or game fish. Anybody any info on this ? -------------------- The Older I get .. The better I was.
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Apr 1 2008, 09:36 AM
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#3
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 Member Group: Members Posts: 6,758 Joined: 28-March 05 From: North Wiltshire Member No.: 6,391 |
Large quantities of any sort of leaves falling into the pond have the potential to cause problems in the long term; a build-up of rotting vegetation will gradually lower the pH, the layer of debris may become anoxic and start to generate hydrogen sulphide, and if it subsequently gets stirred up the combined effect of the oxygen demand of the decomposing debris and the released gases could cause a problem.
By and large, though, I'd say that they are unlikely to be causing an acute problem. |
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Apr 3 2008, 08:13 PM
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#4
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 Member Group: Members Posts: 2,862 Joined: 27-April 05 From: Londinium Member No.: 6,532 |
QUOTE (MrWiggly @ Apr 1 2008, 08:49 AM)  I can't see any reason why they should, and have not heard of any. Many of our wild and farmed waters are surrounded by pine forests, and must suffer from needle drop and leeching from the forest banks. But they still hold a heathy stock of coarse or game fish. Anybody any info on this ? stock being the opperative word The increased acidity along with released alkaliods from pine needles breaking down has ruined many a Scotish trout stream in pine forestries creating a shortage of truely wild brownies spawning in streams that run into some lochs.I was watching a documentry about the very topic some time back. But can not remember the title May have been one of the Bill Oddie ones. This post has been edited by five bellies: Apr 3 2008, 08:14 PM -------------------- Someone once said to me "Dont worry It could be worse." So I didn't, and It was!
انا آكل كل الفطائر I made a vow today, to never again argue with an Idiot they have more expieriance at it than I so I always seem to lose! |
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Apr 16 2008, 06:57 PM
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#5
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 Member Group: Members Posts: 10,397 Joined: 3-February 03 From: Southampton, Hampshire Member No.: 3,408 |
QUOTE (tench2k3 @ Mar 31 2008, 12:10 PM) could pine needles falling in a pond cause fish deaths I for one can think of at least four reasons why a fall of conifer needles in your pond could kill fish. Depending on the species, "pine" needles can contain: terpines, phenolics, polyphenols, resins and a whole host of other natural, but nasty chemicals. Pine needles take a long time to break down and compost because of these chemicals in them.
-------------------- Corydoras
  Play Travian 4 Luc-Sur-Mer, the best resort on the Cote-de-Nacre Listen to the "This Week in Science" Podcast The problem isn't what people don't know, it's what they know that just ain't so. Vaut mieux ne rien dire et passer pour un con que de parler et prouver que t'en est un! Mi, ch’fais toudis à m’mote |
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