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<br />o <br />c.'> <br />N <br /> <br />:...'" <br /> <br />t.:) <br />W <br /> <br />Serratia liquifaciens X <br />S. odor~fera X X <br />S. rubidaea X X <br />Shigella sp. X X <br />Staphylococcus sp. X X <br />Streptococcus sp. X <br />Vibrio alginolyticus X X <br />V. cholerae (non-human) X <br />V fluvialis X X <br />Yersinia entercolitica X <br />Y. psuedotuberculosis X <br />Gram positive rods X X <br /> <br />Electrofishing damage: Damaged kidney tissue was noted in fish necropsies and spinal deformities <br />were noted from both fishery and fish health biologists' observations. Randomly collected C. latipinnis <br />from each electrofishing raft were radiographed on vertical and lateral planes and analyzed for spinal <br />damage of any type (Alcumbrac 1994, personal communication). Both compression and step-down <br />fractures were found in less than 10 percent of the fish. Of the three rafts surveyed, there was no <br />correlation with manufacture of the unit; however, those rafts with a larger cathode surface area had the <br />least amount of spinal damage 10 fish. Since the radiograph survey was completed, rafts have been <br />modified, which probably has accounted for fewer spinal abnormalities. <br /> <br />Asian Tapeworm and other parasites: Asian tapeworms were first detected in C carpio in the San <br />Juan River near Bluff, Utah (RM 82) in October 1994 (Landye and McCasland 1997). The invasion of <br />this tapeworm to other sections of the river and cyprinid species was documented in subsequence surveys <br />from Mexican Hat (RM 52.8) to Fruitland Diversion, New Mexico (RM ]66). This included infections <br />found in older stocked P. lucius, bUI not young of the year stocked fish. No Asian lapeworms have been <br />found in other families of fish in the San Juan River. <br /> <br />The following endo- and ectoparasites were observed during at leasl one fish health survey. The species <br />name following the parasite name indicates the fish from which the parasites were detected: Ambiphyra <br />(I punctatus), Apiosoma (I punctatus), Trichodina (Micropterus salmoides, 1. punctatus, C. carpio, <br />C. latipinnis, and C. discobolus), Tetrahymena (c. latipinnis), Henneguya (J. punctatus), Gyrodactylus <br />(C carpio, C latipinnis, and C discobolus), Ligic/aluridus (1. puncta/us), Hunterella (c. latipinnis), <br />Corallobothriumfimbriatum (I. puncta/us), B. acheilognathi (C carpio, C. lutrensis, R. osculus, and <br />P. lucius), Myzobdella (J. punctatus), and Lemaea (c. latipinnis). <br /> <br />6 <br />