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<p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Tahoma","sans-serif"'>Klamath
River fish diseases spreading<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Tahoma","sans-serif"'>Eureka
Times-Standard-3/24/10<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Tahoma","sans-serif"'>By
John Driscoll<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></b></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>Biologists
expect to see the host of a lethal fish disease continue to spread in the
middle Klamath River unless high flows scour out the silty areas where it
lives. </span><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>Researchers
on Monday reported their work on the Klamath over the past year at the River
Lodge in Fortuna. They said more of the tiny polychaete worms that host the
fish parasites were found packed more densely into a larger area than in other
recent years. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>Sascha
Hallett, a researcher with Oregon State University, said that there is more
silty material that the worm inhabits, and with it more young fish have been
killed by the parasite over the past three years. Hallett said that situation
will probably become more problematic until heavy river flows strip some of
that habitat away. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>”I
think this will get worse this year, if that's possible,” Hallett said. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>The
hot zones are in a roughly 50-mile stretch of river between the Shasta and
Scott rivers, but have been stretching downriver toward Orleans recently.
Essentially there are more parasites, called Ceratomyxa shasta, in a larger
area than before. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>Yurok
Tribe biologist Joshua Strange said that it appears that increased flows from
the Trinity River in summer for ceremonial purposes does not tend to speed up
the migration of salmon. But higher flows can stop the outbreak of diseases
during peak chinook salmon migration in late August and late September. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>Strange
hypothesized that with more than 80,000 fish running upriver, and less than
2,000 cubic feet per second of water running downriver, there is the
possibility of a fish kill. He referenced the 2002 event that killed 68,000
chinook in a hot, shallow river.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>He
said that removal of four dams on the Klamath -- called for as part of two
agreements signed among 28 parties in February -- temperatures in the river should
also begin falling as salmon begin to migrate in the fall. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>The
plankton released from the reservoirs would no longer concentrate just below
Iron Gate Dam and continue to provide nutrients for the polychaete worms. Iron
Gate Dam is also where a huge number of adult salmon are stopped in their
upstream migration, and when they spawn and die, the release C. shasta spores,
which are taken up by the polychaete worm, concentrating the host in that area.
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>Until
the dams come out -- scheduled for 2020 -- Strange suggested that a short,
high, additional flow of 3,000 cfs from Iron Gate in February could disturb the
silty, flat stretches of river where the worm is abundant.#<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><a
href="http://www.times-standard.com/ci_14746435?IADID=Search-www.times-standard.com-www.times-standard.com">http://www.times-standard.com/ci_14746435?IADID=Search-www.times-standard.com-www.times-standard.com</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style='font-size:14.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></b></p>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thomas J. Weseloh, Northcoast Manager<o:p></o:p></p>
<p class=MsoNormal>California Trout<o:p></o:p></p>
<p class=MsoNormal><i><img border=0 width=35 height=14 id="Picture_x0020_1"
src="cid:image001.jpg@01CACC14.0B1BBD60" alt="email sig fish"> Keeper of the
Streams<o:p></o:p></i></p>
<p class=MsoNormal>1976 Archer Rd. McKinleyville, CA 95519<o:p></o:p></p>
<p class=MsoNormal>707.839.1056<o:p></o:p></p>
<p class=MsoNormal><span style='color:#548DD4'>caltrout@sbcglobal.net<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#548DD4'>www.caltrout.org<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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