An aquaculture trade show gathers samples and people from hundreds of ponds into one hall. For buyers, that is a chance to see many suppliers at once. For farmers, it is a risk that is seldom mentioned: pathogens can travel on a shoe, on a measuring device, on a bag of water samples, and then home to their own ponds.
Biosecurity at an aquaculture trade show is not yet a familiar subject for many organizers, who are used to thinking about fire safety and crowds. This article proposes a light but specific set of rules for the organizer, based on farm biosecurity material and the CEM guides on event security and safety. It is a checklist, not a substitute for advice from the veterinary authority.
Why biosecurity at an aquaculture trade show matters
Vietnam's veterinary authority says acute hepatopancreatic necrosis disease and white spot disease remain serious problems in the main production areas. Most cases appear within about 15 to 60 days after stocking, most often from March to September. A farm-level study in Bac Lieu also found that fish-eating birds were significantly associated with the disease, with an odds ratio of about 8. Farmers have reason to be careful, and a show held in those months needs more care.
An indoor hall is a lower-risk environment than a pond: dry floor, stable temperature, no birds or insects from the fields. The risk comes from what visitors and exhibitors bring in, and from what visitors carry out when they leave.
Four sources of risk
- Live organism samples. Shrimp, fish and crustaceans brought for demonstration can carry disease, especially samples taken from a pond with a problem.
- Water and wastewater from tanks. Water from ponds or water used for live samples, if discharged carelessly, takes pathogens into the drains and the outside environment.
- Equipment used at other ponds. Sensors, nets and sampling tools brought straight from a pond to the booth.
- People who move on. Guests who attend the show then visit a farm the next day, or go straight home to their own farm, may carry what they touched at the show.
Rules for the organizer
Appoint a biosecurity lead in the operations team. This person works with the local veterinary authority, reads and approves booth registrations involving live organisms, and is the person exhibitors call when something comes up. From there, set these rules.
- On live samples: accept only samples with source documents, from a hatchery or farm with test records, and ban samples from ponds showing signs of disease. Ask the local veterinary authority about transport and display rules.
- On water: wastewater from tanks must be treated or collected under an agreement with the venue, not discharged straight into canals. Details for tank booths are in the article on aquaculture booths with water tanks.
- On equipment: tools used at ponds must be washed and disinfected before entering the hall, and exhibitors sign a commitment to this in the registration form.
- On laboratory demonstrations: prefer fixed or simulated samples to live ones.
- On waste: collect organic waste and feed packaging separately, so birds and insects are not drawn toward catering areas.
Footbaths at the entrance?
A footbath is a familiar solution, but be careful about its effectiveness. A Global Seafood Alliance article on biosecurity notes that contact time in a footbath is often too short, mud and organic matter reduce the effect of disinfectants such as chlorine, and visitors often do not understand why they are doing it so compliance is poor. An FAO workshop document also lists common measures including hand-washing stations, footbaths, tire washes and warning signs. For an indoor hall with a clean floor, a hand-washing station and clear signs usually make more sense than a makeshift footbath, together with a request that groups coming from farms change shoes before boarding the bus. Bus-in groups and farm-tour groups are the ones to watch.
Visiting groups and the next day
Guests who attend the show and then take a farm tour the next day are the highest-risk case, because they have just been in contact with samples from many sources. Work with the farm owner to learn what they require before accepting guests. The farm's rules: limit visitor numbers, park vehicles outside, change into the farm's boots, stand at an observation area, as the article on visiting a shrimp farm sets out. Build these into the information sent to groups beforehand and into the article on an aquaculture farm tour after the show.
Communication and contingency
Rules work only when people know them. Put them in the exhibitor kit (see the article on the exhibitor kit), repeat them at the exhibitor briefing, post signs near tank areas, and tell floor staff what to do if they see unusual mortality in samples. The show's emergency plan should have an item for this, following the frame in the article on emergency readiness: who decides, who calls the veterinary authority, which area is isolated.
Need someone to build biosecurity rules for your show?
If you are preparing biosecurity at an aquaculture trade show and need a rulebook for exhibitors, a commitment form, or someone to work with the veterinary authority and farm owners, you can send a request through the quote page or book a call with Nguyen Anh Trung. Share the farming region, the organisms to be displayed and the farm visit program.
A light rule that everyone follows beats a heavy one nobody reads.