Farmed Fish Individual Identification: Acoustic and Visual Tracking

Overview of individual fish identification approaches in aquaculture welfare monitoring.

Key Facts

Acoustic telemetry enables individual fish tracking in sea cages and freshwater
Passive integrated transponder (PIT) tags are used for individual fish identification in research
Computer vision is advancing for individual fish identification from visual markings
Individual tracking reveals disease progression, feeding, and social welfare data
Commercial individual fish identification systems are under development

Welfare Considerations

Individual fish identification and tracking in aquaculture provides welfare monitoring data at a level not currently achievable in routine production. Acoustic telemetry and PIT tags enable research-level tracking. Computer vision approaches using natural or artificial markings are advancing. Individual tracking data reveals welfare-significant information about disease spread, feeding behaviour, and social interaction. Commercial systems are in development that could transform aquaculture welfare monitoring if deployed.

What You Can Do

Support fish welfare technology research including individual tracking systems
Follow aquaculture technology organisations for individual monitoring developments
Advocate for welfare monitoring technology requirements in aquaculture regulation