Perimeter & vehicle control
Single controlled entry, wheel bath, foot-dip, changing rooms. No shared vehicles between farm sites.
Playbook · Biosecurity & health
Disease is the #1 destroyer of aquaculture margin.
A vendor-neutral biosecurity, vaccination and outbreak-response framework built from patterns across salmon, tilapia, shrimp and RAS operations worldwide.
1. Biosecurity zoning & site layout
Most outbreaks trace back to a single un-controlled entry point. Zoning turns biosecurity from a policy into a physical design.
Clean / dirty zone separation
One-way material and personnel flow from hatchery → nursery → grow-out → harvest. Never backwards.
Species / age-class segregation
Separate water, staff and equipment per age class. Age-mixing is the fastest way to spread pathogens.
Mortality removal circuit
Dedicated mortality collection loop that never crosses live-fish routes; incinerate or bury per local rules.
2. Water treatment & incoming risk
Incoming water carries pathogens, TAN spikes and off-flavour precursors. Treat it before it reaches fish, not after.
UV & ozone
UV 40–60 mJ/cm² for bacterial control; ozone with residual monitoring for virus and BOD reduction.
Drum-filter + biofilter train
Mechanical solids removal ahead of biofilter; correctly sized biofilter is your first line against ammonia-driven immunosuppression.
Quarantine loop
New batches held in isolated tanks with independent water and staff for 14–30 days before mixing into main system.
Effluent management
Treat outflow to protect neighbouring farms — reciprocity is the strongest cluster-level biosecurity.
3. Vaccination, immunity & genetics
Vaccination is not optional at commercial scale in salmon, tilapia or shrimp. It is the single highest-ROI biosecurity investment.
Vaccination protocols
Species-specific programme against endemic pathogens (SRS, ISA, WSSV, EMS/AHPND, Streptococcus, columnaris). Log every batch.
SPF / SPR broodstock
Source SPF (specific pathogen free) or SPR (resistant) genetics; enforce supplier health certificates each cycle.
Nutrition & gut health
Immunostimulant / probiotic feed strategies to reduce antibiotic dependency; align with ASC / BAP requirements.
Stocking-density discipline
Density above species threshold suppresses immune response — recalibrate against biomass calculator, not marketing brochures.
4. Monitoring, early warning & response
You catch outbreaks in the first 24–48h or you lose the crop. Instrumentation and diagnostic access are non-negotiable.
Continuous water-quality telemetry
DO, temperature, TAN, nitrite, salinity, pH — alarm thresholds tied to on-call staff, not just dashboards.
Behavioural monitoring
Camera-based feed response and swimming behaviour flags 1–2 days before mortality curves move.
Diagnostic partnerships
PCR / histopathology contract with regional lab; 24h sample-to-result protocol before you need it.
Outbreak response plan
Written playbook: isolation, harvest-out, disinfection, cohort culling, reporting to authority, insurer notification.
Common biosecurity questions
Package biosecurity into your RFQ.
FishMatch Group turns biosecurity, UV/ozone, quarantine and monitoring specs into vendor-neutral RFQs to project-matched manufacturers.