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That sheen must have been oils leached from the shingles or roof tar. I could find no diatoms in that gutter mush. DW ----- Original Message ----- From: "David & Alison Webster" <dwebster@glinx.com> To: <NatureNS@chebucto.ns.ca> Sent: Saturday, July 19, 2014 8:45 PM Subject: [NatureNS] Roof gutter diatoms ? > Dear All, July 19, 2014 > While cleaning debris from a roof gutter this morning I noticed the > tell-tale sheen of Diatom oil near one corner that had likely held water > for 14 days since Arthur. The down-spout screen was plugged solid and the > gutter had an unusually rich combination of leaves and ripe cherries both > live when pulped and mashed by wind action. > > A roof gutter does not come to mind as potential Diatom habitat but I > wonder if some can form dornant stages that can be distributed by air. I > saved some of the mush this evening in case I have time to look at it for > possible Diatoms. > > Yt, Dave Webster, Kentville > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2014.0.4716 / Virus Database: 3986/7883 - Release Date: 07/19/14 >
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