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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The screening and quarantine of incoming fish is the best way to avoid a facility-wide Argulus infestation. Views Read Edit View history. Shafir A, van As JG. Feeding occurs on the skin or gills of the fish, causing intense irritation and tissue damage. The room is on a Common carp Cyprinus carpiogoldfish Carassius auratus. Financial losses have been experienced by some farmers, caused by these ectoparasitic infestaions.

The image of infected leukocytes infested by Argulus japonicus were 8. Captured fish should be examined quickly because Argulus lice can leave the fish rapidly once it is disturbed or removed from the water. In addition, the parasite can be identified on wet mounts of affected tissue.

Articles with ‘species’ microformats. Argulus japonicus is native to Asia, where its typical hosts, goldfish Carassius auratus and common koi carp Cyprinus carpio are also located. These parasites were removed and placed in the beaker with the first specimen. Open in a separate window.

Ikuta K, Makioka T. The infected goldfish parasitized with lice did not demonstrate any clinical signs and therefore were placed back into tanks.

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

These goldfish were asymptomatic, and no additional cases were noted after manual removal of the lice. More than different species of Argulus are distributed worldwide. Parasitology Argulus japonicus is a parasitic crustacean parasitizing the skin of warm water fishes. After the lice had been removed, all goldfish in the affected jaoonicus were monitored daily for evidence of adult Argulus ; 10 mo later, no more fish lice were noted. Buy arguluss article in print.


A The branchiuran parasite Argulus japonicus collected from the caudal and anal fins of 3 goldfish Carassius auratus. There are currently no FDA-approved drugs for the treatment and control of Argulus.

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

Argulus japonicus is a parasitic crustacean parasitizing the skin of warm water fishes. The digestive system of larval Argulus japonicus Branchiura. Source water should be evaluated to ensure that it is not a route for the introduction of argulid eggs. Branchiura infestation on lionhead goldfish Carassius auratus in Iran. The fine japonicu and function of the cephalic appendages of the branchiuran parasite Argulus japonicus Thiele. We thank Jamieson Greaver for taking the pictures and Kelly Garner for her contribution in creating the figures.

Support Center Support Center. Changes of histopathology on host were congestion, baoning degeneration, epithelium erosion and inflammatory cell infiltration. Mucus and artulus cells are absent from any epidermis remaining in the crater but are abundant in the tissue at the margin of the crater.

The most effective treatment against argulusosis is organophosphates, which usually are given as 2 or 3 doses at 1-wk intervals to kill emerging larvae and juveniles. Infectious and japonjcus diseases of fish and shellfish.

Argulus japonicus in the Olifants River system: Argulus japonicus is native to Asian countries, where it parasitises carp species such as the Carassius auratus goldfish and Cyprinus carpio common carp. This study was aimed to determine the impact of ectoparasite Argulus japonicus infestation on host freshwater ornamental fish from Familia Cyprinidaein order to find a preventive solution to treatment on the host.


Maponicus examination of the fish revealed that the shadow was a live organism resembling a fish louse. Tokyo20 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.

Juvenile Argulus lice attach to the host by means of the claws, whereas adults attach by means of a pair of modified suckers commonly referred to as maxillules. In Japanese Ogawa, K. Due to their size, arulus stages of Argulus can be diagnosed with the naked eye and are visible japonivus on the host or swimming in the water.

These organisms have a direct life cycle requiring a single hostand A. S Afr J Wildl Res Content from this work may be used under the terms of the Creative Commons Attribution 3. Taylor and Francis To find out more, see our Privacy and Cookies policy. Health hazard Since this parasite is not infectious to human, it is harmless in food hygiene. Tam Q, Avenant-Oldewage A. 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.

After eggs hatch in about 2 weeks or longer at lower temperatureslarvae are only able to survive for 1—2 days before requiring nutrition from a host fish. Argulus japonicus Thiele, [1].

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