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Daily Check List

Weekly Check List

Monthly Monitoring

Feed Requirements

Essential Nutrients

Additional Nutritional Factors

Feeding Regime

Water Quality Requirements

Water Quality Action and Reaction

Water Quality Management and Biofilter Maintenance

Post larval fitness parameters

Post Larva Acclimitation


Risk Management, Bio-security and HACCP Implementation


System Disinfection Procedures

Equipment Maintenance

Record Keeping and Report Templates


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.

Geographic distribution


Host species

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.

Diagnostic techniques

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.




Variables to be used in health evaluation

Health evaluation tests
Wet Mount Procedure . PL visual examination . Stress test for post larva . Gill examination . Mid-gut Examination . Stomach Contents Analysis

Shrimp Diseases
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)
Bacterial Diseases
Vibriosis . Epicommensal fouling disease (filementous bacteria) . Necrotizing Hepatopancreatitis (NHP) . Black spot disease (BSD) . Mycobacteriosis
Fungal Diseases
You are here . Fusariosis
Haplosporidia . Gregarines . Cotton Disease
Black Gill Disease (BGD) Dissolved Oxygen Crisis Nitrogen Gas Bubble Disease

Disease control
Decreasing density, partial or early harvests . Drugs, chemicals and treatments . Sanitation