In reply to Post #11
Worried me too, I've asked someone who lives very near the lake to kindly just have a look at the water for me - no fish of any species on the surface at all - good news, but said the water looks kind of "3D" !
That tells me instantly stratification is starting - the ultimate aquatic life killer!
But from previous experience in the past (I wish I'd never had) are now well prepared for such eventualities, off to go and start up a couple of high pressure Pumps to churn the water column over ASAP.
Worried me too, I've asked someone who lives very near the lake to kindly just have a look at the water for me - no fish of any species on the surface at all - good news, but said the water looks kind of "3D" !
That tells me instantly stratification is starting - the ultimate aquatic life killer!
But from previous experience in the past (I wish I'd never had) are now well prepared for such eventualities, off to go and start up a couple of high pressure Pumps to churn the water column over ASAP.
In reply to Post #2
Exactly what happened to the Mere fish, everything perished from tiny invertebrates to the hardiest of fish, they all suffocated due to zero dissolved oxygen.
This next few days is the perfect cocktail of environment conditions to have the same effect on ponds with algae blooms and heavy weed that will ultimately sink like a stone to the lake bed.
Exactly what happened to the Mere fish, everything perished from tiny invertebrates to the hardiest of fish, they all suffocated due to zero dissolved oxygen.
This next few days is the perfect cocktail of environment conditions to have the same effect on ponds with algae blooms and heavy weed that will ultimately sink like a stone to the lake bed.
In reply to Post #18
It happened at the Big S a couple of weeks ago.
Agree these conditions we're having right now are prime for it. I think the saving grace is that pressure is dropping slowly over the course of the week vs. one big storm hitting like a tonne of bricks.
It happened at the Big S a couple of weeks ago.
Agree these conditions we're having right now are prime for it. I think the saving grace is that pressure is dropping slowly over the course of the week vs. one big storm hitting like a tonne of bricks.
In reply to Post #20
Crikey!
Very informative stuff here
I was up last night watching the storm pass over. Lit the place up like daytime a few times. Very cool to watch but I'd no idea it could be so risky to fish
Crikey!
Very informative stuff here
I was up last night watching the storm pass over. Lit the place up like daytime a few times. Very cool to watch but I'd no idea it could be so risky to fish
Everything was fine, temp 19c , DO at 146% with a nice North Easterly blowing down the Lake.
Can't be to careful thou, as it only takes a couple of hours to wipe everything out if it inverts.
Can't be to careful thou, as it only takes a couple of hours to wipe everything out if it inverts.
In reply to Post #13
Bugger!! That's in Blenham village IRCC
Manor Farm isn't too far away.. Shame....
Bugger!! That's in Blenham village IRCC
Manor Farm isn't too far away.. Shame....
In reply to Post #13
Oh no, that's bloody tragic.
Oh no, that's bloody tragic.
In reply to Post #22
Keep an eye on your fisheries guys, I see a lot of waters are struggling today with the heat and fish have been on the top gasping. Like to think aerators are the norm now for lake owners.
Keep an eye on your fisheries guys, I see a lot of waters are struggling today with the heat and fish have been on the top gasping. Like to think aerators are the norm now for lake owners.
In reply to Post #22
I'm assuming that the 146% was mid-afternoon to early evening? If so what sort of readings are you getting in the lead up to dawn?
I'm assuming that the 146% was mid-afternoon to early evening? If so what sort of readings are you getting in the lead up to dawn?
In reply to Post #27
That's around 9am in the morning, been getting high readings all summer.
That's around 9am in the morning, been getting high readings all summer.
In reply to Post #28
I'm guessing that you're having a bad algae bloom?
My last batch of barley extract doesn't seem to have held the algae back and I was getting some very high daytime readings. Back down to 75% today.
I hope everything stays healthy on your place.
I'm guessing that you're having a bad algae bloom?
My last batch of barley extract doesn't seem to have held the algae back and I was getting some very high daytime readings. Back down to 75% today.
I hope everything stays healthy on your place.
In reply to Post #29
Cheers Andy, so do we all.
It's such a rich water it makes it very prone to doing crazy things, mainly stratification - then inverting which as you will know is the worst case scenario you can have. Last time it did it about 5 years ago it took it 2 hours to turn from gin clear highly oxygenated water with nothing wrong, to turn too water that looked like thick black Coffee and oxygen readings of 2%! (Killed everything but Trout)
Nobody believed a water could invert and turn so fast, but two EA staff was there to witness it happening, three DO Meters all gave a reading of 2%.
If we have a bit of rain every few days, and a bit of a breeze it's fine as the water table gets disturbed enough not to start separating into layers.
It's when it's totally static for more than a few days combined with hot weather we have to be on our guard, there's a pair of High pressure 3" Pumps on stand by all year round, only takes a couple of minutes to start the engines up and your "Churning" the water column over at a rate of over 30,000 litres a minute.
Cheers Andy, so do we all.
It's such a rich water it makes it very prone to doing crazy things, mainly stratification - then inverting which as you will know is the worst case scenario you can have. Last time it did it about 5 years ago it took it 2 hours to turn from gin clear highly oxygenated water with nothing wrong, to turn too water that looked like thick black Coffee and oxygen readings of 2%! (Killed everything but Trout)
Nobody believed a water could invert and turn so fast, but two EA staff was there to witness it happening, three DO Meters all gave a reading of 2%.
If we have a bit of rain every few days, and a bit of a breeze it's fine as the water table gets disturbed enough not to start separating into layers.
It's when it's totally static for more than a few days combined with hot weather we have to be on our guard, there's a pair of High pressure 3" Pumps on stand by all year round, only takes a couple of minutes to start the engines up and your "Churning" the water column over at a rate of over 30,000 litres a minute.
In reply to Post #30
Yes it's surprising how stratified the water can become even in relatively shallow lakes.
I lent my two emergency petrol pumps out to a local syndicate yesterday morning, they're having big problems.
Unfortunately I've witnessed first hand four fish kills over the last ten years, on three very different types of lake. Heartbreaking to see even when they're not your own this.
Amazing how those trout survived on your lake, I'd always been led to believe that they were more susceptible to low d.o. levels than just about any other species?
Yes it's surprising how stratified the water can become even in relatively shallow lakes.
I lent my two emergency petrol pumps out to a local syndicate yesterday morning, they're having big problems.
Unfortunately I've witnessed first hand four fish kills over the last ten years, on three very different types of lake. Heartbreaking to see even when they're not your own this.
Amazing how those trout survived on your lake, I'd always been led to believe that they were more susceptible to low d.o. levels than just about any other species?
In reply to Post #31
What surprises me Andy is how little preventative measures Fisheries take, when in reality for the price of replacing 1 x 20lb+ Carp you can buy all the equipment required to guarantee a disaster is not going to happen.
I was also told Trout were very susceptible to low oxygen levels – it's obviously not true as not one was found dead, this last week Trout can be seen leaping out here and there, none have ever been stocked since the fish kill.
I've lost count how many I've seen, there was 12 mass wipe outs just on that Monday morning ours did it, all totally different waters in varied locations, all stocked with various species.
I've witnessed a water wipe out its stocks via inverting, while a heavily stocked Stock Pond 30ft away was totally un-effected, reason – tree cover, as the trees kept the surface water temp stable, not allowing it to suddenly cool down and invert.
What surprises me Andy is how little preventative measures Fisheries take, when in reality for the price of replacing 1 x 20lb+ Carp you can buy all the equipment required to guarantee a disaster is not going to happen.
I was also told Trout were very susceptible to low oxygen levels – it's obviously not true as not one was found dead, this last week Trout can be seen leaping out here and there, none have ever been stocked since the fish kill.
I've lost count how many I've seen, there was 12 mass wipe outs just on that Monday morning ours did it, all totally different waters in varied locations, all stocked with various species.
I've witnessed a water wipe out its stocks via inverting, while a heavily stocked Stock Pond 30ft away was totally un-effected, reason – tree cover, as the trees kept the surface water temp stable, not allowing it to suddenly cool down and invert.