Walter, T.C. & Boxshall, G. (). World of Copepods database. Argulus japonicus Thiele, Accessed through: World Register of Marine. Native Range: Argulus japonicus is native to Asia where its common hosts, Goldfish (Carassius auratus) and Common carp (Cyprinus carpio), are also native. Native Range: Argulus japonicus is native to Asia where its common hosts, Goldfish (Carassius auratus) and Common carp (Cyprinus carpio).

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Flick G, Wiegertjes GF. Other compounds with a similar mechanism of action as that of diflubenzuron, such as lufenuron 0. The insecticide Dipterex is able to kill both adult and larval stages of Argulus japonicus ; however, eggs are unaffected by this treatment, meaning an initial application of the compound must be repeated after 2 weeks after which any eggs laid will have hatched in order to achieve an effective reduction of the parasite.

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Views Read Edit View history. A pathologist confirmed the japonucus to be A. In addition, this parasite can penetrate through to the stratum spongiosum of the dermis and even to the stratum compactum beneath; consequently the dermis becomes edematous.

Mixed infection of these two species has not been reported Ogawa, Argulus japonicus is native to Asian countries, where it parasitises carp species such as the Carassius auratus goldfish and Cyprinus carpio common carp. Pathology The lesions become eroded and haemorrhagic since Argulus pierces the host ‘ s skin with a preoral sting and injects toxic substances followed by feeding the leaked blood with a proboscis-like mouth.

Fish lice Argulus spp are members of a large group of branchiuran crustaceans that infest and cause disease jappnicus fish. Currently, there are no FDA-approved drugs for the control and treatment of this parasite, but several chemicals including organophosphates and diflubenzuron have been used with success. All remaining fish in the system were inspected visually, and no other parasites were seen. Lesions inflicted by the parasites often become necrotic arguus ulcerated, leading to secondary infections.


Financial losses have been experienced by some farmers, caused by these ectoparasitic infestaions. Author information Article notes Copyright and License information Disclaimer. Argulus japonicuscommon name Japanese fishlouse or Japanese fish louseis a species of crustaceans in the family Argulidaethe fish lice. Please review our privacy policy. These eggs are deposited on hard surfaces, then covered by gelatinous excretions from the female.

Fish Lice (Argulus japonicus) in Goldfish (Carassius auratus).

Argulus japonicus in the Olifants River system: In Japanese Ogawa, K. From Wikipedia, the free encyclopedia. AirlanggaSurabaya, East Java, Indonesia. Any further distribution of this work must maintain attribution to the author s and the title of the work, journal citation and DOI. Parasitology Argulus japonicus is a parasitic crustacean parasitizing the skin of warm water fishes.

A The branchiuran parasite Argulus japonicus collected from the caudal and anal fins of 3 goldfish Carassius auratus. These systems each comprise six to gallon tanks using a multistage filtration process and UV sterilization of filtered water. Diseased fish exhibits inflammation and haemorrhage in the lesions.

Feeding occurs on the skin or gills of the fish, causing intense irritation and tissue damage. Common carp Cyprinus carpiogoldfish Carassius auratus.

S Afr J Wildl Res The parasite becomes an adult and begins laying eggs in weeks at C. Many fish host this louse, which is probably able to parasitize almost every species of freshwater fish.

These parasites were removed and placed in the beaker with the first specimen. The fine structure and function of the cephalic appendages of the branchiuran parasite Argulus japonicus Thiele. Aargulus Argulus coregoni is a similar parasite to A. There are currently no FDA-approved drugs for the treatment and control jsponicus Argulus. It has a stumpy tail, and is shaped somewhat like a round shield. J Crustacean Biol Mucus and club cells are absent from any epidermis remaining in the crater but are abundant in the tissue at the margin of the crater.


While feeding on the host, Argulus species insert a preoral stinger to inject digestive enzymes into the body of the fish, and the lice suck out liquefied body fluids by using their proboscis-like mouth. Argulus coregoni is a similar parasite to A. Due to jalonicus size, older stages of Argulus can be diagnosed with the naked eye and are visible moving on the host or swimming in the water.

Because our facility did not have a severe outbreak, and only a few fish were affected, we opted for the conservative approach of manual removal of lice without further medical intervention. Kismiyati Ectoparasitic infestation Argulus japonicus on mascokoki arhulus Carassius auratus and efforts of fish japoniccus with fish of Sumatra Surabaya: Kismiyati et al IOP Conf.

Abstract Fish lice Argulus spp; family Argulidae are branchiuran crustaceans that parasitize both marine and freshwater fishes. Although rarely diagnosed in laboratory animal facilities, Argulus spp are an important parasite in aquatic colonies and warrant additional study. Argulus japonocus is native to Asia, where its typical hosts, goldfish Carassius auratus and common koi carp Cyprinus carpio are also located.

WoRMS – World Register of Marine Species – Argulus japonicus Thiele,

We would also like to thank Dr. A female detaches the host and lays egg clusters in pond-wall and waterweed. These organisms have a direct life cycle requiring a single hostand A. In addition, the lobes are more pointed in A.

Goldfish heavily infected by A. Argulus japonicus Scientific classification Kingdom: These goldfish were asymptomatic, and no additional cases were noted after manual removal of the lice.