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<br />13(10 <br /> <br />Fish Disease Monitoring <br />Fiscal Year 1999 Project Proposal <br /> <br />Principle Investigators: John Thoesen, J. Jerry Landye, and Beth McCasland <br />US Fish & Wildlife Service <br />Pinetop Fish Health Center <br />PO Box 160, Pinetop AZ 85935 <br />(520) 367-1902 <br />, john _ thoesen@mail.fws.gov jerrLlandye@mai1.fws.gov beth _ mccasland@mail.fws.gov <br /> <br />;~' -',- <br /> <br />.t, <br /> <br />Studv Area: <br /> <br />~., <br />fc( <br />}&;:;~ <br /> <br />The study area for YOY/small bodied fish monitoring extends from river mile (RM) 180.0 <br />(Animas River confluence) in Farmington, New Mexico, downstream to RM 2.9 (Clay Hills <br />Crossing) just above Lake Powell in Utah. <br /> <br />;:~,., <br />, . <br />>-.,( <br />~:--~ <br /> <br />Collections: <br /> <br />Five flannelmouth suckers from each designated mile will be taken for fish health analysis. Any <br />non-native fish taken will be from those collections covered under other tasks. <br /> <br />Backeround: <br /> <br />Since October 1992, the Pinetop Fish Health Center has participated on adult monitoring and <br />various smaller sampling trips on the San Juan River from Farmington, NM to Clay Hill, UT. <br />We have collected fish health samples from many different fish species. The original primary <br />concern was the high frequency of lesions observed in various species of fish and whether this <br />problem would affect the endangered Colorado pikeminnows (squawfish) and/or threatened <br />razorback suckers. Upon sampling the San Juan fishery, other pathogens were discovered such <br />as Bothriocepphalus acheilognathi (Asian tapeworms) and Ichthyophthiriius multifiliis (Ich). <br />Now that these two species are recruiting in the San Juan River fishery, due to an ongoing <br />stocking program, maintaining and managing fish health of these fish is important. <br /> <br /> <br />We propose to collect and maintain a fish health data base during the spring razorback sucker <br />and Colorado pikeminnow spring run-off monitoring trip in FY-99. We also will take non-lethal <br />fish health samples from all razorback suckers and Colorado pikeminnows encountered. Fish <br />pathogens will be monitored and compared to the results of the six years of research. If these <br />pathogens increase, efforts will be made to identify causes. Channel catfish will be lethally <br />sampled in order to provide a fish health inspection of the population prior to transfer to other <br />waters. Additionally, data collected by other San Juan River biologists from the fall adult, <br />monitoring will be analyzed for disease incidence. <br /> <br />t-'" <br /> <br />Work Plan FY99.wpd <br /> <br />22 <br /> <br />Budget and Work Plan FY99 <br /> <br />r <br />r <br />~"-,~' <br />