In reply to Post #32
I hear its bad yesterday/today, willow Park, and most of the Farnham waters closed, heard they lost a 51lb from the lake behind sandhurst.
I hear its bad yesterday/today, willow Park, and most of the Farnham waters closed, heard they lost a 51lb from the lake behind sandhurst.
In reply to Post #32
Trout are more susceptible to low DO than almost all coarse fish. This is a biological fact that simply cannot be disputed.
Trout are more susceptible to low DO than almost all coarse fish. This is a biological fact that simply cannot be disputed.
In reply to Post #32
So tree cover is a good thing? We have a club water that nearly lost them all last weekend as well, luckily the club managed to borrow four pumps and with people manning the pumps 24 hours a day to ensure they are kept running it seems the fish loss has been limited to about 10 carp, sadly about 50% of the biggest fish in the lake.
It's an old estate lake and, when tested, the oxygen level in one of the bays was basically zero (0.01) and it wasn't much higher in the main lake. I'm sure the EA said that trees were a bad thing as they prevented the wind getting on the lake and getting oxygen into the water , as well as shedding all their leaves into the water.
By the way the EA had no pumps as they were already out, lots of waters suffering the same problem. The club has now purchased two but IMO every club should have enough pumps to cater for two or three waters at a time needing help.
So tree cover is a good thing? We have a club water that nearly lost them all last weekend as well, luckily the club managed to borrow four pumps and with people manning the pumps 24 hours a day to ensure they are kept running it seems the fish loss has been limited to about 10 carp, sadly about 50% of the biggest fish in the lake.
It's an old estate lake and, when tested, the oxygen level in one of the bays was basically zero (0.01) and it wasn't much higher in the main lake. I'm sure the EA said that trees were a bad thing as they prevented the wind getting on the lake and getting oxygen into the water , as well as shedding all their leaves into the water.
By the way the EA had no pumps as they were already out, lots of waters suffering the same problem. The club has now purchased two but IMO every club should have enough pumps to cater for two or three waters at a time needing help.
In reply to Post #35
A further factor is that lightning converts available oxygen to ozone which not only lowers oxygen levels but is detrimental to bacteria in itself.
A further factor is that lightning converts available oxygen to ozone which not only lowers oxygen levels but is detrimental to bacteria in itself.
In reply to Post #35
The irony was the EA had advised chopping all the trees down over the top of the stock pond to allow air flow and light, but was reluctant to chop them back until the whole Stock Pond was protected with Lines above to keep Cormorants and Heron at bay. If we had have chopped them back the stock pond would have probably got wiped out as well, and with not doing all was fine!
But I would not compare a 50m x 25m Stock Pond with any lake, it was pure luck the tree's actually sheltered it and stopped the water inverting.
From what I've witnessed/observed no two waters are alike and each one does to a degree have its own unique habits. Some behave and never have any problems while others are just a constant pain in the arse and have to be constantly monitored all year round; they just cannot be trusted – as I keep saying to members “If it looks odd then something must be odd!”
~ I thought Pike and Trout where highly susceptible to low oxygen levels too – in reality with the EA bosses stood there, the exact opposite was witnessed by all!
~ Totally agree Paul as regards having Pumps on standby ready to use, it's a no brainer really - for just the cost of a gallon of Petrol, all the stock could possibly be saved in the event of a pending disaster
The irony was the EA had advised chopping all the trees down over the top of the stock pond to allow air flow and light, but was reluctant to chop them back until the whole Stock Pond was protected with Lines above to keep Cormorants and Heron at bay. If we had have chopped them back the stock pond would have probably got wiped out as well, and with not doing all was fine!
But I would not compare a 50m x 25m Stock Pond with any lake, it was pure luck the tree's actually sheltered it and stopped the water inverting.
From what I've witnessed/observed no two waters are alike and each one does to a degree have its own unique habits. Some behave and never have any problems while others are just a constant pain in the arse and have to be constantly monitored all year round; they just cannot be trusted – as I keep saying to members “If it looks odd then something must be odd!”
~ I thought Pike and Trout where highly susceptible to low oxygen levels too – in reality with the EA bosses stood there, the exact opposite was witnessed by all!
~ Totally agree Paul as regards having Pumps on standby ready to use, it's a no brainer really - for just the cost of a gallon of Petrol, all the stock could possibly be saved in the event of a pending disaster
Would it be worth running an aerator even when we have stormy/windy conditions like now... Strong winds and heavy rain overnight? Seems like a waste of time to me but I've been known to be wrong before 
In reply to Post #38
Every lake is different, you need to be checking your d.o. levels dawn and dusk to know what's occurring.
Every lake is different, you need to be checking your d.o. levels dawn and dusk to know what's occurring.