Journal
FISH PATHOLOGY
Volume 48, Issue 1, Pages 25-28Publisher
JAPAN SOC FISH PATHOL DEPT FISHERIES-FAC AGR
DOI: 10.3147/jsfp.48.25
Keywords
skin fluke; Monogenea; light intensity; Neobenedenia girellae; Serbia dumerili
Categories
Funding
- Global COE program of Kinki University
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Juvenile greater amberjack were placed in a small cage and exposed to Neobenedenia girellae oncomiracidia for 48 h at an amberjack culture site under natural light or with a shade. The shading reduced worm intensity on the skin of fish by about 70%. Additional laboratory experimental infection comparing the larval infectivity under dark and light conditions revealed that the oncomiracidia were capable of infecting fish in complete darkness. These results suggest that the low infection rate in the shaded water is probably due to accumulation of the oncomiracidia into the bright area, resulting in the lowered density under the shade.
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