BrownhillsBob's #365daysofbiking

On a bike, riding somewhere. Every day, rain or shine.

Posts tagged ‘azolla’

#365daysofbiking Inhaling green:

Wednesday, September 16th 2020 – While I’ve been away the canals have continued as they ever were, with small changes. They got very busy with pedestrians and cyclists for a while, a product of fair weather and lockdown, so the towpaths were well worn, and the cessation in mowing gave my beloved orchids a sporting chance this year. But the waterfowl, plants and colours were broadly as ever.

Reassuringly, beautifully, peacefully as ever.

The one change that’s been interesting is the azolla bloom that dominated the water surface in 2019 has largely faded, and in its death left sporadic patches of more traditional clumping algae, which must be a pain for waterfowl and boaters alike.

There are still traces of azolla, which was a surface invasive surviving a mild winter, but it was non-stringy and readily parted for birds and watercraft, but it’s mostly gone.

On a dull, grey autumn afternoon, the green and peace here were so welcome, I felt like I was inhaling them.

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#365daysofbiking Scum

May 12th – Again, the local canals were thick with organic scum – not just the usual azolla bloom, which is still persisting but has mostly died back now, but detritus and dead bloom heads from sallow trees that border the canal there.

It looks awful but will soon disperse, and it just one of several reasons the canal forms natural organic layers throughout the year.

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#365daysofbiking An ever present weevil

March 21st – Saturday morning seemed brighter. A quick spin up the canal on an errand, and I noticed the azolla bloom – the green scum that’s been on the surface of the canal all winter – was finally breaking up as it’s prey weevil attacked it. This is normal for the lifecycle of this invasive growth and hopefully the weevils will finish the job.

That made me feel a bit better.

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#365daysofbiking Unusual colour

February 2nd – The Azolla bloom in the local canal, and as it matures patches of the waterway have turned a deep red.

Azolla is a small but populous growth that although strange and invasive, does little harm – it will disappear in spring as the weevils gorge on it. Winter normally sees its death, but after a very favourable summer, the winter has not been cold enough to kill it.

It’s not stringy and parts easily for passing boats and waterfowl.

But it does look very unusual.

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