Blooming and Bold
Without the buzzards and bees
Where would we bee?
A blog by Nicolle Kuna
A blog about sustainable landscaping and some eco-humour and eco-creativity.
Inside this blog we look at everything that is encroaching in to our natural urban landscapes – outdoor rooms (errchkem), weeds, urban noise, excess nutrientsThere’s a bit of art to add extra colour and inspiration. We believe in making sustainability fun - more gaming, less shaming.
Saturday, 15 December 2012
River, acquatic health tips and links - not all nutrients are good!
Fish get poisoned by the toxicity of the water, oxygen levels drop, the waterways become a no-go zone, and people and pets swimming (unaware of the risks) in these systems can come down with cyanobacteria poisoning, too. Entire seafood, fishing and tourism industries get affected by these blooms.
Am seeing reports of these outbreaks in New Zealand, the UK, the USA, Canada, and no doubt other places I've not yet stumbled across.
The great news is that scientists at the CSIRO in Australia are coming up with antidotes to the formation of these blue green algae, and one of these is Phoslock, a type of clay which stops the release of the nutrients. I heard on the radio today that this substance is being distributed in around 20 countries already. The other good green news about these green (and often red or pink) blooms, is that not all algal blooms are harmful.
Here is a link to the wonderful CSIRO's discussion on point.
Footage of our beaches turning red from algal blooms.
Some more video links:
http://www.youtube.com/watch?v=mmKgd7w5-rk (funny - mostly - educational video)
In the meantime, what can we do to minimise these blooms:
(1) fertilise our lawns, gardens and productive plots with organic, low nutrient fertilisers.
(2) use low phosphate laundry powders and detergents as sewerage run-off to seas and waterways does commonly occur
(3) take care with our pets toilet habits (pick up after them)
(4) instal rain gardens or encourage our councils to do this
(5) farming regulations need to be rigorously enforced and buffer zones be created around waterways to ensure ruminant animals don't do their 'business' around rivers and creeks