Re: NANFA-L-- Holston River Obsevations

matt ashton (ashtonmj2003-in-yahoo.com)
Wed, 20 Apr 2005 08:07:47 -0700 (PDT)

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This area from a personal communication had historically had up to 100 caught in an hour. I was focusing in one small probably 100 m long 30 m wide stretch and got my 25 and I don't know how many others I saw get away.

Well they went into long fiberglass holding tanks in our mussel lab and whomever is working on this research coming in this summer will probably be infesting them with a certain species of mussel glochidia to determine whether or not they are host fish-in-all and-in-what rates they infest and produce viable larvae mussels if they are a suitable host fish. I am sure that they could also be looked-in-to see what things they currently have on them as well, a natural infestation study, or how many times a species can be infested, becuase usually after one or two infestations they become immune.

Prizma-in-aol.com wrote:
50 greenside darters! for normglochidia infestations studies. what is that?
is this a common practice and the norm?
i see greensides often enough but they are one of the fewer darter species i encounter in large numbers ( i cant think of anytime i have seen more than a dozen in an area or stretch of stream ) unlike snubs, redlines, rainbows even logperch which can be in large numbers indeed. it sure seems like that (50) is a lot of greensides to study. and how do you study them?

casper


matt says...

Today marked my first day collecting in Tennessee waters, and after a AFS chapter meeting and a rare fish meeting in the last month and being in warmer weather now I have had a major itch to be in the water. It was all for fun really too, no research, no hard data needed, just getting me familiar with large rivers and some of the fish I will run into, and grabbing some to do glochidia infestations. So I headed out to the Holston River-in-McKinney Island to a large shoal for some greenside darters.

I hoped to get 50 greenside darters, needless to say I ended up with half in about 4 times the amout of time I was told it would take.


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<DIV>This area from a personal communication had historically had up to 100 caught in an hour.&nbsp; I was focusing in one small probably 100 m long 30 m wide stretch and got my 25 and I don't know how many others I saw get away.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Well they went into long fiberglass holding tanks in our mussel lab and whomever is working on this research coming in this summer will probably be infesting them with a certain species of mussel glochidia to determine whether or not they are host fish-in-all&nbsp;and-in-what rates they infest and produce viable larvae mussels if they are a suitable host fish.&nbsp; I am sure that they could also be looked-in-to see what things they currently have on them as well, a natural infestation study, or how many times a species can be infested, becuase usually after one or two infestations they become immune.<BR><BR><B><I>Prizma-in-aol.com</I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<META content="MSHTML 6.00.2900.2627" name=GENERATOR><FONT id=role_document face=Arial color=#000000 size=2>
<DIV>50 greenside darters!&nbsp;&nbsp;&nbsp;&nbsp; for <STRONG><EM>normglochidia infestations studies. </EM></STRONG>what is that?</DIV>
<DIV>is this&nbsp;a common practice and the norm?</DIV>
<DIV>i see greensides often enough but they are one of the fewer darter species i encounter in&nbsp;large numbers ( i cant think of anytime i have seen more than a dozen in an area or stretch of stream&nbsp;)&nbsp;unlike snubs, redlines, rainbows even logperch which can be in large numbers indeed. it sure seems like that (50)&nbsp;is a lot of greensides to study. and how do you study them?</DIV>
<DIV>&nbsp;</DIV>
<DIV>casper</DIV>
<DIV>&nbsp;</DIV>
<DIV><STRONG><EM></EM></STRONG>&nbsp;</DIV>
<DIV>
<P><STRONG><EM>matt says...</EM></STRONG></P>
<P><STRONG><EM>Today&nbsp;marked&nbsp;my first day collecting in Tennessee waters, and after a AFS chapter meeting and a rare fish meeting in the last month and being in warmer weather now I have had a major itch to be in the water.&nbsp; It was all for fun really too, no research, no hard data needed, just getting me familiar with large rivers and some of the fish I will run into, and grabbing some to do glochidia infestations.&nbsp; So I headed out to the Holston River-in-McKinney Island to a large shoal for some greenside darters.</EM></STRONG></P>
<P><STRONG><EM>I hoped to get 50 greenside darters, needless to say I ended up with half in about 4 times the amout of time I was told it would take.</EM></STRONG></P></DIV></FONT></BLOCKQUOTE><p>
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