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Index of Subjects
Index of Subjects --Apple-Mail-191-15631809 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Hi Angus and Paul, P.P. Harper in the chapter on Stoneflies (Plecoptera) in Canada and its Insect Fauna (Danks 1978) records 15 species in Canada in the family Taeniopterigidae (the so-called "Winter Stonflies). They (and other stoneflies) are considered, as Paul points out, to be an important component on the diet of some species of fish. The larvae of winter stonflies are detritivores or herbivores, grazing on benthic algae. Some of the predatory species of stoneflies are thought to eat significant numbers of black fly larvae, so they are of double significance from the standpoint of humans! They are also important indicators of water quality since few species can thrive in waters which are warm, poorly oxygenated, silted, or polluted. Best wishes, Chris On 12-Mar-07, at 8:10 PM, Paul MacDonald wrote: > Hi Angus > The family Taeniopterygidae is known to most anglers - > dedicated fly anglers at least - as "Early Brown > Stones". Eric Leiser and Robert Boyle in the book on > the subject say there are about 30 members in the > family. The nymphs are debris inhabitors rarely found > in open water. They go on about techinical ids which > sort of go over my head. > Some authors say it is the most important trout food > in our waters. > I need get some tied up. > Enjoy March > Paul > > --- Angus MacLean <angusmcl@ns.sympatico.ca> wrote: > >> Since it was a nice sunny day (+5) I decided to >> look for some snow >> creatures. No luck but did come on this creature >> (two pics) on a wet >> section of a path. >> >> http://www.flickr.com/photos/58321572@N00/?saved=1 >> >> I believe it is a Broadback (similar to a Stonefly) >> which is often >> found walking on the snow. His head appears to be >> heavily armored. >> >> Angus >> >> > > > > > ______________________________________________________________________ > ______________ > Food fight? Enjoy some healthy debate > in the Yahoo! Answers Food & Drink Q&A. > http://answers.yahoo.com/dir/?link=list&sid=396545367 _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. _. Christopher Majka - Nova Scotia Museum of Natural History 1747 Summer Street, Halifax, Nova Scotia, Canada B3H 3A6 (902) 424-6435 Email <c.majka@ns.sympatico.ca> _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. _. --Apple-Mail-191-15631809 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1 <HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; = -khtml-line-break: after-white-space; ">Hi Angus and Paul,<DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV>P.P. Harper in the chapter = on Stoneflies (Plecoptera) in Canada and its Insect Fauna (Danks 1978) = records 15 species in Canada in the family Taeniopterigidae (the = so-called "Winter Stonflies). They (and other stoneflies) are = considered,=A0as Paul points out, to be an important component on the = diet of some species of fish. The larvae of winter stonflies are = detritivores or herbivores, grazing on benthic algae. Some of the = predatory species of stoneflies are thought to eat significant numbers = of black fly larvae, so they are of double significance from the = standpoint of humans! They are also important indicators of water = quality since few species can thrive in waters which are warm, poorly = oxygenated, silted, or polluted.</DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV>Best wishes,</DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV>Chris</DIV><DIV><BR><DIV><DIV= >On 12-Mar-07, at 8:10 PM, Paul MacDonald wrote:</DIV><BR = class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">Hi Angus</DIV><DIV style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">The family = Taeniopterygidae is known to most anglers -</DIV><DIV style=3D"margin-top:= 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; = ">dedicated fly anglers at least - as "Early Brown</DIV><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">Stones". Eric Leiser and Robert Boyle in the book = on</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: = 0px; margin-left: 0px; ">the subject say there are about 30 members in = the</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; ">family. The nymphs are debris = inhabitors rarely found</DIV><DIV style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">in open = water. They go on about techinical ids which</DIV><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">sort of go over my head.</DIV><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">Some authors say it is the most important trout = food</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; ">in our waters.</DIV><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">I need get some tied up.</DIV><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">Enjoy March</DIV><DIV style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; = ">Paul</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">--- Angus MacLean <<A = href=3D"mailto:angusmcl@ns.sympatico.ca">angusmcl@ns.sympatico.ca</A>> = wrote:</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV> = <BLOCKQUOTE type=3D"cite"><DIV style=3D"margin-top: 0px; margin-right: = 0px; margin-bottom: 0px; margin-left: 0px; ">Since it was a nice sunny = day (+5) I decided<SPAN class=3D"Apple-converted-space">=A0 = </SPAN>to</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; ">look for some snow<SPAN = class=3D"Apple-converted-space">=A0</SPAN></DIV><DIV style=3D"margin-top: = 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; = ">creatures. No luck