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Subject: Pleurocapsa Identification
From: Karl Bruun <[log in to unmask]>
Reply-To:Karl Bruun <[log in to unmask]>
Date:Sun, 21 Dec 2008 14:00:13 -0800
Content-Type:multipart/mixed
Parts/Attachments:
Parts/Attachments

text/plain (21 lines) , Jean's Aquarium 12-12-2008 Unknown Cyanobacteria #1.01 Spherical Measurement 1000x DIC.jpg (647 kB) , Jean's Aquarium 12-12-2008 Unknown Cyanobacteria #1.03 Spherical 1000x DIC.jpg (711 kB) , Jean's Aquarium 12-12-2008 Unknown Cyanobacteria #1.05 Spherical 1000x DIC.jpg (586 kB) , Jean's Aquarium 12-12-2008 Unknown Cyanobacteria #1.06 Spherical 1000x DIC.jpg (637 kB) , Jean's Aquarium 12-12-2008 Unknown Cyanobacteria #1.07 Spherical 1000x DIC.jpg (676 kB)


Hello Colleagues,

	Enclosed are a few images of what looks like a blue-green algae that
I scraped off the glass of a small (5-8 gal.?) aquarium.  Referencing both
"FW Algae Flora of the British Isles" (DM John, et. al), and "Blue-Green
Algae of the British Isles-Interactive Key" (Lucid) (BA Whitton-NHBS), have
directed me to Pleurocapsa minor.  However I'm puzzled by the lack of
pseudofilaments, perhaps these colonies are in their chroococcalean stage?
I don't remember encountering this organism during BG bloom analysis which
usually involves planktonic organisms, Microcystis, Anabaena etc.  Any help
with this identification is appreciated...Thanks...Karl

Karl Bruun
Nostoca Algae Laboratory
7770 Springridge Road N.E.
Bainbridge Island, WA 98110 USA
206-842-1285
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