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Larval mycosis, Fungus disease, Lagenidium or Sirolipidium disease.
Scientific name or taxonomic affiliation
Lagenidium callinectes, Lagenidium spp., and Sirolpidium spp. Other phycomycetous fungi such as Phythium spp., Leptolegnia marina, and Haliphthoros milfordensis may also occassionally cause the disease.
All penaeids especially in zoea and mysis stages as well as Pandalus platyceros under experimental culture conditions. Other marine crustaceans such as lobsters and crabs can also be infected.
Impact on the host
Extensive non-septate highly branched fungal mycelia throughout the body and appendages, replacing all the tissue. Specialised hyphae may protrude through the cuticle. Epizootics develop within 2-3 days; invariably lethal.
Wet Mounts or Histology: If necessary, the fungus can be identified by examining the method of sporogenesis and the morphology of spore discharge tube.
Culture: In vitro on marine mycological media; sporulation induced by transfer to seawater.
Methods of Control
Control by disinfecting tanks and equipment and incoming water. There is speculation that antibiotic use to control bacteria may enhance larval mycosis by removing bacterial epibiont competitors.
HEALTH MANAGEMENT & DISEASE CONTROL INDEX
Hepatopancreatic parvo-like virus (HPV) . Reo-like virus (REO) . Lymphoid organ vacuolization virus (LOVV) . Taura Syndrome Virus (TSV) . Rhabdovirus of Penaeid Shrimp (RPS) . White Spot Syndrome Virus (WSSV) . Infectious hypodermal and hematopoietic virus (IHHNV) . Baculovirus penaei (BP)
Vibriosis . Epicommensal fouling disease (filementous bacteria) . Necrotizing Hepatopancreatitis (NHP) . Black spot disease (BSD) . Mycobacteriosis
You are here . Fusariosis
Haplosporidia . Gregarines . Cotton Disease
Black Gill Disease (BGD) Dissolved Oxygen Crisis Nitrogen Gas Bubble Disease