| Main Ref: | 48690 |
| Disease type: | Parasitic infestations (protozoa, worms, etc.) |
| Disease name: | Fish Leech Infestation (Hirudinea sp.) |
| Other names: | |
| Caus. agent: | Hirudinea sp. |
| Group: |
| Part of body and/or behavior affected by disease: | ||
| Skins and/or fins | Belly | Swimming behavior |
| Gills | Anus | Other behavior |
| Eyes | Viscera Afflicted | Other symptoms |
| Fish affected: | ||
| Symptoms: | Sluggish movement and the infected fish swims near the surface. Also in heavy infestation, the host fish can have skin-lesions with hemorrhages. The parasite can be easily detected, it is about 15mm in length, blackish in color with an anterior and posterior sucker. | |
| Treatments: | Bath the infested fish with 200-250 ppm formalin added seawater for an hour. Also a strong aeration should be considered because formalin bath can disturb fish respiration. After the formalin bath, the fish should be administered with 1-2 ppm antiobiotic (Prefuran) for 1-2 hours to control secondary bacterial infection. | |
| Prophylaxis: | ||
| Remarks: | ||
| Mortality and seasonality | ||
| Mortality: | ||
| Seasonality: | ||
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