Transcript Document
RFID: Reliable identification for salmon trace-back. NASCO Marking Workshop December 6-8, 2004 by Douglas McCartney Identify UK Limited Overview • Introductions • Traditional approaches to salmon ID • Why use implantable RFID? • What is electronic identification and how does it work? • How is the transponder applied? • Criteria for selecting a microchip system About Trovan, Ltd. • Privately held and funded UK corporation. • Technology leader since 1989. • 15-year track record of service and reliability. • On-going product research and development program. • Comprehensive technology and patent portfolio. • Specialist in aquaculture applications. Experience • Product in over 40 nations and on 7 continents. • Millions of salmon, tilapia, trout and arowana identified. • Customers include leading commercial operators and government agencies in Europe, South America, Asia, Australasia, and North America. Traditional approaches to fish ID • Coded wire tags • Fin clipping • Chemical markers Why use implantable RFID? • Non-contact, non-line of sight. Code can be read through animal tissue, in cloudy or turgid water, irrespective of orientation. • Reliable. Over fifteen years continuous use in salmon fisheries. • Unlimited tag lifespan. Code does not degrade over time. • Permanent, non-removable ID. • Implanted RFID does not impact fish mobility or alter fish behaviour. • Automated data capture: Eliminates transcription errors. How RFID works Transponders Transponders Transponder IC Portable reader Swim-by panel reader RFID in action How is the transponder applied? Implantation • Take fish off their feed 48 hours prior to tagging. • Sterilize transponders in medical grade alcohol. • Using scalpel or similar device, nick body wall just off mid-ventral line, behind pectoral fin. • Insert tag with finger. Implanting Implanting Criteria for selecting an implantable RFID system • Can I read the tag? (1) Reading range >20 cm for portable reader; Swim-by panel readers. (2) Read area (the larger the better) (3) Read speed. • Automation of operations. • Data integrity Unique numbers to guarantee positive identification. • Quality and product reliability (1) Microchip design reliability: minimizing the number of components. (2) Manufactured to ISO 9001 standard. TROVAN system advantages--all tags are not created equal. • Performance (1) Reading range >24 cm for portable reader. (2) Swim-by and pass-by panel readers. (3) Top read speed. • Dedicated readers designed for fisheries applications. • Over 550 billion unique ID numbers through patent protection. • Quality and product reliability (1) Microchip design reliability: minimizing the number of components. (2) Manufactured to ISO 9001 standard.