Went To The River - Came Back With Algae

Images made through a microscope. All subject types.

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Mitch640
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Joined: Sun Aug 15, 2010 1:43 pm

Went To The River - Came Back With Algae

Post by Mitch640 »

Got tired of waiting and decided to take a ride by the river. It's almost at flood stage for the spring again and I stopped by a boat ramp and dipped out a couple jars of water with some dead leaves and sediment. The very first sample on a slide got me some nice algae I had never seen before. From Ralf Wagners website, it looks like it is pediastrum duplex? And the diatom is Asterionella formosa?

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twebster
Posts: 442
Joined: Wed Jul 26, 2006 8:02 am
Location: Phoenix "Valley of the Sun", Arizona, USA

Post by twebster »

This is a nice set of images. I especially like the star shape of the diatom colony.
Tom Webster

Phoenix "The Valley of the Sun", Arizona, USA

The worst day photographing dragonflies is better than the best day working! :)

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

Thanks Tom. I had seen diatoms like that, but never found more than two or three tegether. A first for me. :)

NikonUser
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Joined: Thu Sep 04, 2008 2:03 am
Location: southern New Brunswick, Canada

Post by NikonUser »

Algae at last :D
Sounds like the start of a novel "Went To The River - Came Back With . . . . ."
NU.
student of entomology
Quote – Holmes on ‘Entomology’
” I suppose you are an entomologist ? “
” Not quite so ambitious as that, sir. I should like to put my eyes on the individual entitled to that name.
No man can be truly called an entomologist,
sir; the subject is too vast for any single human intelligence to grasp.”
Oliver Wendell Holmes, Sr
The Poet at the Breakfast Table.

Nikon camera, lenses and objectives
Olympus microscope and objectives

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

HAHA, I was beginning to think there was something wrong with me.

I took a sample in a pipette, from the very bottom of the jar that had the dead leaves and a little bit of sedimentary stuff in the bottom. I did not get a lot of the mud when I took the samples. Maybe I should have. You can still see a lot of the fine particulates though.

The river is in flood stage now, yet the water looks fairly clean. Usually it's silt laden and brown and you can't see very far into it. Yesterday, it looked like tea and I could see the ramp going down to maybe 4 feet. I got one jar of just water and will spin down some centrifuge tubes of it to see if it has anything in it.

After I check some samples of these two jars, I'll add them to my tank to give it a charge with some new life. Still don't see any visible sized bugs in them though, like cyclops. Maybe they are dormant, the water was cold enough to numb your hands, just carrying the jars.

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