Biosecurity is the systemic prevention of pathogen introduction, spread and impact in an aquaculture facility — the single highest-ROI CAPEX after core life-support. A well-designed biosecurity program costs 3–7% of total CAPEX and prevents losses that routinely reach 100% of a stocked cohort.
Shrimp: WSSV, EMS/AHPND, IHHNV, EHP. Salmon: ISA, PD, SRS, sea lice. Tilapia: TiLV, streptococcus. Marine fin-fish: viral nervous necrosis, amoebic gill disease. Design your biosecurity around the specific threat profile of your species and geography.
Zoning; incoming-water treatment (UV / ozone / filtration); animal-input QA (SPF certification, PCR screening, quarantine); staff/vehicle/equipment decontamination; outbreak response plan with pre-authorised destruction and disinfection protocols.
Every water source is a pathogen vector. UV, ozone, chlorine + dechlorination, filtration and settlement each have specific pathogen-kill profiles. Design the water treatment train around the highest-risk pathogen for your species.
Every incoming batch — broodstock, PL, fingerlings, live feed — passes quarantine with PCR screening, a stress-test cohort and documented incubation before entering the main system.
Every commercial facility needs a written outbreak response plan: isolation, sampling, laboratory confirmation, regulatory notification, staged destruction, disinfection and re-stocking protocols. Rehearse it annually.
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