Dactylogyrus sp. (Diesing, 1850)
Dactylogyrus sp. is one of the biggest genera of Monogenean parasite. It is well known as gill fluke. Body elongated, length 0.287-0.395 mm and width 0.69 – 0.91 mm. They have four lobed head and four black eyes. The intestinal limbs are confluent posterior. The ovary lies in front of the testis. Dactylogyrids lay eggs and live as parasites, particularly on the gill. The diseases caused by Dactylogyrus sp. called Dactylogyrosis. Carp fish commonly silver carp, beside that shing, magur also affected by this parasite.
Phylum : Platyhelminthes
Class : Monogenea
Order : Dactylogyridea
Family : Datylogyridae
Genus : Dactylogyrus
Symptoms and pathology
• Fish become restless and gather at the inflow or on the water surface.
• Gills look grayish or pale.
• Bleeding in gill, necrosis.
• Swollen in gill filament.
• Respiration may affect, breathing frequency increased.
• Gill sheets with flukes become cloudy film.
• Destruction of epithelial cells