The Incidence of Myxobolus dentium (Protozoa: Myxosporida) in Esox masquinongy of the Upper Niagara River

Autor: George, Elinor, Harrison, Edward J., Hadley, Wayne F.
Zdroj: Transactions of the American Fisheries Society; September 1977, Vol. 106 Issue: 5 p476-480, 5p
Abstrakt: The histozoic myxosporidan parasite Myxobolus dentium Fantham was found in 94 of 280 angler-caught muskellunge, Esox masquinongy Mitchell, taken in the Niagara River from 1968 to 1976. Among fish from 71- to 81-cm total length (TL), the coefficient of condition was significantly lower for infected fish than for uninfected fish. Fish 71- to 95-cm TL had a significantly greater incidence of infection than fish 96- to 122-cm TL. The infection rate of fish 3+ to 5+ years old was significantly higher than the infection rate of fish 6+ to 8+ years old. Incidence of infection of 71- to 95-cm TL fish increased from June to August and decreased until October, showing a positive correlation with water temperature.
Databáze: Supplemental Index