| occurrence of sanguinicola occidentalis van cleave and mueller, 1932 in perca flavescens and campeloma decisum from a michigan creek. | sanguinicola occidentalis (trematoda: sanguinicolidae) infected 58 (48%) of 120 yellow perch collected in 1997 and 40 (50%) of 80 yellow perch collected in 1998 from silver creek in lower michigan. the mean intensity and mean abundance of this blood fluke were higher in 1998 than in 1997. the fluke was found in the bulbous arteriosus of the perch heart, free in the petri dishes when the gill filaments were teased apart, and in the body cavity washings, and 1 individual was associated with an eye ... | 2000 | 11191918 |