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This is a multi-part message in MIME format. ------_=_NextPart_001_01C755BB.67EFD459 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I have seen kelp flies very active (scattering away as I walked, rather than just crawling about) along the Bay of Fundy in late February when temperatures were -10C or thereabouts. However, this was always on sunny, windless days when there was no snow on the wrack, and radiant heating from the blackened seaweed created a layer of warm air directly overhead - the air temperature where the flies were active would have been above zero. If a bit of breeze is added to the mix, breaking up that warm layer, the temperature must be quite a bit warmer (perhaps a few degrees below zero) before they seem to be as active. Dwayne ------_=_NextPart_001_01C755BB.67EFD459 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Dus-ascii"> <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version = 6.5.7638.1"> <TITLE>Kelp flies</TITLE> </HEAD> <BODY> <!-- Converted from text/rtf format --> <P><FONT SIZE=3D2 FACE=3D"Arial">I have seen kelp flies very active = (scattering away as I walked, rather than just crawling about) along the = Bay of Fundy in late February when temperatures were -10C or = thereabouts. However, this was always on sunny, windless days when = there was no snow on the wrack, and radiant heating from the blackened = seaweed created a layer of warm air directly overhead - the air = temperature where the flies were active would have been above = zero. If a bit of breeze is added to the mix, breaking up that = warm layer, the temperature must be quite a bit warmer (perhaps a few = degrees below zero) before they seem to be as active.</FONT></P> <P><FONT SIZE=3D2 FACE=3D"Arial">Dwayne</FONT> </P> <BR> </BODY> </HTML> ------_=_NextPart_001_01C755BB.67EFD459--
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