Hope you enjoyed your lake use

why do we end up with crap road side art,when our natural resourses go to shit!!,correct me if im wrong,but didnt Walter Burley Griffin plan our city around this lake as a focus??why is there so many issues with all the waterways around canberra..you used to be able to catch trout in LBG,now all you seem to be able to catch is a nasty rash?

I am no expert on causes of or alleviation of algae, but I’d add that accounts of early inland explorers contain references to blue green algae they encountered in watercourses and ponds while exploring the inland in the 19th century.

Yes, you’re right – that picture is not great.

“On the basis of my walk along there”

what?

They could certainly pump the lake full of some kind of chemical to get rid of it but it would an ongoing requirement. The long term solution would have to be stopping or reducing what actually causes it i.e. catchment, run-off etc

I wonder if the ACT Governments removal of the willow trees on Molonglo river above the lake had any affect on algae in the lake?

What we need is some clever scientist to figure out how to make the algae irresistable to the Euro Carp. With the number of them in our water system the blooms should clear up in no time. 🙂

Hard to tell from the photo, but perhaps this is string algae – a scourge of frog pond owners like myself when the water gets warm and quite evident downstream of Scrivener where I was on Saturday?

Blue-green I believe is more like little flakes below the surface.

As far as what to do about it, algae blooms because of nutrient loads in the water. We are talking run-off of fertilisers, manures (dogs, birds, etc), detergents (wash your car on the driveway anyone?), and I’d think the heavy load of deciduous leaves being flushed out of some stormwater piping during recent rains. All congregating and not getting away. That’s what happens when you build dams.

So some things governments can do, but also a lot individuals need to do. Or hold on for one hell of a lot more rain…

I wonder how much longer the drought that started in 2001 has to go before people start to believe it is a pattern rather than an event? Another couple of decades if your name is Tuckey or Joyce.

I’ve already had a swim at Yarralumla Bay a week ago. Water looked a bit greenish, especially at the edge of the bay, but I had no skin reactions whatsoever.

Rad Dave said :

Could we just pour in some salt? Maybe lots of it?

I was thinking white tiles and chlorine…

i noticed the lake had a bit of a green tinge driving past on the parkway yesterday, it almost looked nice, rather than the brown that it usually is!!

Could we just pour in some salt? Maybe lots of it?