calothrix (cyanobacteria)

[75RR]

25x * 1.25 and 25 *1.6, 12µm at widest point, Oblique and Phase, 10 and 8 image stacks in Photoshop.

That is twice that I change to phase and set the Optovar one step higher. :(

[JimT]

Never seen green algae taper to a "tail". I'd be interested if this is common or an anomaly. Very good images.

[75RR]

Thanks JimT,
They used to be known as blue-green algae, now reclassified as Cyanobacteria. Hence the funny shape.

[gekko]

Very nice images, especially the one with oblique lighting, which shows beautiful detail. I too have never seen a tapering blue-green alga, but now the reason for its shape is clear .

[JimT]

I live in the Finger Lakes area of NY USA and Green algae is becoming a big problem in what use to be crystal clear lakes.
Only recently have I seen it also referred to as cyanobacteria in the Press. I wonder if fertilize and farm run off contributed or created the problem

Once again, great images!

JimT

[vasselle]

Bonjour
Très belle photo.
Merci pour le partage
Cordialement seb

[75RR]

Thanks gekko and vassell

I live in the Finger Lakes area of NY USA

Looked it up. Very pretty area!