Aquaculture & fisheries PIT tagging

RFID Fish Tag (PIT)

Aquaculture & Fisheries ID

Glass-encapsulated RFID PIT tag for ISO 11784/11785 + ISO 24631 fish and aquatic-organism identification in aquaculture and fisheries research

Quick answer

Passive Integrated Transponder (PIT) fish tags deliver individual identification across aquaculture broodstock, fisheries research, and endangered-species programmes. Proud Tek supplies HDX and FDX-B ISO 11784/11785 + ISO 24631-1/-6 conformance-tested transponders in 8.4 × 1.4 mm micro, 12 × 2.12 mm standard, 23 × 3.85 mm bolus, and 32 × 3.85 mm long-range formats — matched to the reader, antenna, and detection-station infrastructure that the Columbia River PIT Tag Information System (PTAGIS), NMFS Endangered Species Act programmes, USFWS refuge monitoring, NOAA Fisheries stock-assessment work, and the AFTM (American Fisheries Society + American Fisheries Society Fish Marking Techniques Committee) reference. Chip options include Texas Instruments HDX (RI-TRP-RRHP), EM Microelectronic EM4305 / EM4469 / EM4569 FDX-B, and Biomark / Oregon RFID / Destron Fearing-compatible encoders. Welfare posture follows AFS/AIFRB Use of Fishes in Research, AVMA Guidelines on Euthanasia of Animals (2020), AALAS / FELASA aquatic-species guidance, and the 2% body-weight tag-to-fish ratio rule. Biocompatible medical-grade borosilicate glass + Parylene-C anti-migration coating; EO-sterilised pre-loaded single-use injector needles (12 g / 14 g / 16 g); retention >98 % at 6 months when body-cavity injected per PTAGIS protocol. Export posture covers CITES Appendix I (sturgeon, European eel) + II (Atlantic salmon listed stocks) aquaculture traceability, EU 2016/1012 zootechnical + EU 2019/1009 + EU CFP (Common Fisheries Policy) catch-documentation, and US Magnuson-Stevens Act stock-rebuilding programmes.

  • Medical-grade borosilicate glass capsule with Parylene-C anti-migration coating; biocompatible per ISO 10993-1 + USP Class VI; EO-sterilised pre-loaded single-use injector needles (12 g / 14 g / 16 g).
  • ISO 11784/11785 + ISO 24631-1 (conformance) / ISO 24631-6 (performance) FDX-B and HDX variants; 15-digit unique ID; Biomark + Oregon RFID + Destron Fearing reader-ecosystem compatibility.
  • Detection-station integration with PTAGIS, NMFS ESA monitoring, USFWS refuge work, and AFTM-referenced fisheries-research infrastructure; solar + cellular remote monitoring; retention >98 % at 6 months.
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At a glance

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Chip & encoding

Texas Instruments HDX (RI-TRP-RRHP) — long-read-range, half-duplex, preferred for stream-weir PTAGIS detection EM Microelectronic EM4305 / EM4469 / EM4569 FDX-B — full-d...

Form factors (6 SKUs)

Micro 8.4 × 1.4 mm — juvenile salmonids, small tropical / ornamental (from 55-60 mm fork length) Standard 12 × 2.12 mm — adult salmonids, tilapia, bass (from 80-100 mm)

Biocompatibility & welfare
  • Medical-grade borosilicate glass capsule + Parylene-C anti-migration coating
  • ISO 10993-1 biological-evaluation pathway + USP Class VI qualification
  • EO-sterilised (ethylene-oxide) per ISO 11135; shelf life 3 years in sealed blister
  • AFS Use of Fishes in Research welfare threshold — tag-to-fish mass ratio <2%
  • AVMA Guidelines on Euthanasia of Animals (2020) — aquatic-species analgesia framework
  • AALAS / FELASA aquatic-species IACUC guidance for research-grade tagging
Regulatory anchor (US)
  • NMFS / NOAA Fisheries Endangered Species Act Section 7 / 10(a)(1)(A) research permits
  • USFWS 50 CFR Part 17 (ESA) + Part 20 (migratory bird; non-fish reference) + National Wildlife Refuge System 50 CFR Part 25-27
  • Magnuson-Stevens Fishery Conservation and Management Act stock-rebuilding assessments
  • USDA APHIS VS Form 16-4 + 7001 for live-animal import/export
  • US Fish & Wildlife Service Lacey Act 16 USC §3371-3378 traceability
Regulatory anchor (international)
  • CITES Appendix I — sturgeon (Acipenseriformes spp.), European eel (Anguilla anguilla)
  • CITES Appendix II — Atlantic salmon listed stocks, giant clam, humphead wrasse aquaculture
  • EU 2016/1012 Zootechnical Regulation (animal-breeding traceability)
  • EU Common Fisheries Policy (Regulation 1380/2013) catch documentation
  • EU 2017/625 Official Controls Regulation — aquaculture inspection
  • FAO Code of Conduct for Responsible Fisheries + Aquaculture Certification Council
Detection-station infrastructure
  • Columbia River PTAGIS (Pacific States Marine Fisheries Commission) — Bonneville / McNary / John Day / Lower Granite / Ice Harbor
  • Biomark IS1001 / IS1001-MTS / IS1001-PC pass-through and flat-plate antennas
  • Oregon RFID HDX multi-antenna reader + HDX-2 long-range
  • Destron Fearing FS2001-ISO + portable Pocket Reader EX
  • Solar + cellular remote station packages (Campbell Scientific + Eagle Hill)
  • Smolt Monitoring Program + Comparative Survival Study (CSS) integration
Aquaculture platforms
  • AKVAgroup Fishtalk + Mercatus + Pentair Select + Pharmaq Analytiq
  • Xpert Sea pellet-sizing + growth-tracking integration
  • AquaManager + Manolin + Aquabyte + Observe Technologies
  • Skretting NUTRACE + Cargill iQuatic feed-conversion
  • Genus Aquaculture + AquaGen + Stofnfiskur + Hendrix Genetics broodstock
  • Zoetis Fish Vet Group + Pharmaq vaccine-trial traceability
Species & size thresholds
  • Atlantic / Pacific salmon (Salmo salar / Oncorhynchus spp.) — micro tag from 55-60 mm FL
  • Rainbow / brown / brook trout (Oncorhynchus mykiss / Salmo trutta / Salvelinus fontinalis) — micro from 55 mm
  • Tilapia (Oreochromis spp.) — standard tag from 80 mm
  • Striped bass / hybrid striped bass (Morone spp.) — standard from 80 mm
  • Sturgeon (Acipenser spp.) — 23 mm long-range from juvenile stocking
  • European eel (Anguilla anguilla) — micro tag post-elver stage
Retention & performance
  • Retention >98 % at 6 months post-injection (body-cavity, trained technician, PTAGIS protocol)
  • Short-term mortality (24-48 h) <1 % with experienced operator + sterile technique
  • Read range: HDX 50-70 cm flat-plate antenna; FDX-B 30-50 cm; pass-through loop 60-90 cm
  • Monitoring uptime >99 % at PTAGIS stations; AFTM-validated detection-efficiency telemetry
  • Growth-rate / swimming-performance impact negligible when tag mass <2% of fish mass
Sterilisation & QC
  • EO sterilisation per ISO 11135; residual ethylene-oxide tested per ISO 10993-7
  • Sterility assurance level (SAL) 10^-6
  • 100 % read-verify on encoded 15-digit ID pre-sterilisation
  • ISO 24631-1 conformance report + ISO 24631-6 performance report on request
  • Biocompatibility dossier (ISO 10993-1 / -5 / -10) + USP Class VI statement
MOQ / Lead time

Micro + standard FDX-B: 1,000 pcs / 10-15 business days; HDX PTAGIS-spec: 2,000 pcs / 15-20 business days; sterile pre-loaded injector sets: 500 pcs / 15-20 business days; ISO 24631 conformance dossier: available on request, 2-3 week lead

Warranty & traceability

12-month defect warranty; COC with chip family + encoded ID range + EO sterilisation lot + ISO 24631 conformance batch number + biocompatibility declaration; ISO 9001:2015 QMS + ISO 13485-aligned sterile-device process

Typical pricing

USD 1.00–3.00 /pc @ 1k+ (typical FOB Shenzhen range) — firm quote in one business day.

Commercial terms

MOQ
Varies by SKU — stock items from 100 pcs; custom production typically 200-1,000 pcs
Lead time
Production 2-3 weeks after artwork and encoding sign-off; reorders on a 3-4 week cycle
Samples
Free samples and RF test report with every order; courier at customer cost
Payment
50% T/T deposit, 50% before shipment; Net 30/60 for established accounts; LC for large orders
Shipping
FOB Shenzhen / Yantian; DHL, FedEx or EMS air freight; sea LCL / FCL for volume
Response
Itemized quote within one business day, Mon-Fri (UTC+8)

Full terms in your quote →

Regulatory context: PIT tagging in US and international fisheries research

Individual-animal identification in aquaculture and wild fisheries science converges on ISO 11784/11785 LF transponders operating at 134.2 kHz, with the ISO 24631 family adding the conformance (ISO 24631-1) and performance (ISO 24631-6) envelope that receiver / transponder suppliers cite. In the United States, NMFS / NOAA Fisheries conducts Endangered Species Act Section 7 and 10(a)(1)(A) research under USFWS permits; the Columbia River PTAGIS network — operated by the Pacific States Marine Fisheries Commission — ingests tens of millions of annual detections from Bonneville, McNary, John Day, Lower Granite, and Ice Harbor smolt-monitoring arrays, with data feeding the Comparative Survival Study and Smolt Monitoring Program under Magnuson-Stevens Act rebuilding plans.

The American Fisheries Society Fish Marking Techniques Committee (AFTM) + AFS/AIFRB Use of Fishes in Research jointly govern welfare expectations: the core threshold is that tag mass must not exceed 2 % of fish body mass, and injection protocols must include anaesthesia (MS-222 or AQUI-S 20E), aseptic technique, and post-tagging recovery monitoring. AVMA Guidelines on Euthanasia of Animals (2020) and AALAS / FELASA aquatic-species guidance cover the IACUC documentation that university and agency programmes rely on.

International programmes add CITES Appendix I (sturgeon Acipenseriformes, European eel Anguilla anguilla) and Appendix II (Atlantic salmon listed stocks, giant clam, humphead wrasse) traceability requirements; EU programmes add the Common Fisheries Policy (Regulation 1380/2013) catch-documentation framework + EU 2017/625 Official Controls + EU 2016/1012 Zootechnical Regulation. FAO publishes the Code of Conduct for Responsible Fisheries and the Aquaculture Certification Council operates third-party audits.

Key performance metrics

  • 134.2 kHzISO 11784/11785 low-frequency animal-ID band; universal across HDX and FDX-B aquaculture readers
  • >98 %Retention at 6 months post-body-cavity injection under PTAGIS-referenced protocol
  • <2 %Tag-to-fish mass ratio threshold per AFS Use of Fishes in Research welfare guideline
  • <1 %Short-term (24-48 h) mortality with experienced operator + sterile technique
  • SAL 10^-6Sterility assurance level for EO-sterilised pre-loaded injector needle assemblies (ISO 11135)
  • 50-90 cmDetection range: HDX 50-70 cm flat-plate, FDX-B 30-50 cm, pass-through loop 60-90 cm

Commodity PIT tag vs Proud Tek ISO 24631-grade build

Commodity aquaculture sourcing

  • Generic 'ISO-compatible' chip without ISO 24631-1 conformance or ISO 24631-6 performance certification
  • No biocompatibility dossier; generic glass without Parylene-C anti-migration coating
  • Non-sterile or bulk-sterilised; no SAL statement; no EO residual testing
  • No pre-loaded injector needle assemblies; technician manually loads each tag
  • Mixed HDX / FDX-B not differentiated; risk of reader-ecosystem mismatch with PTAGIS / Biomark / Oregon RFID / Destron Fearing
  • No AFTM / AFS welfare documentation; no 2% body-weight rule enforcement

Proud Tek ISO 24631 + AFTM-aligned build

  • ISO 24631-1 conformance report + ISO 24631-6 performance report per batch on request
  • Medical-grade borosilicate glass + Parylene-C coating + ISO 10993-1 biocompatibility + USP Class VI
  • EO sterilisation per ISO 11135 with SAL 10^-6 + ethylene-oxide residual testing per ISO 10993-7
  • Pre-loaded Biomark MK25 / N125 / MK65-compatible single-use injector needles (12 g / 14 g / 16 g)
  • HDX and FDX-B variants separately SKU'd; reader-ecosystem matched to Biomark / Oregon RFID / Destron Fearing / PTAGIS deployments
  • AFS Use of Fishes in Research welfare documentation; 2% body-weight rule stated per size SKU; AVMA 2020 + AALAS / FELASA references provided

HDX vs FDX-B: selecting the air interface for your programme

Interface Read range Best for Reader ecosystem
HDX (half-duplex) 50-70 cm flat-plate, 60-90 cm pass-through loopStream weirs, fish ladders, Columbia River PTAGIS, large-antenna remote monitoringBiomark IS1001 + IS1001-MTS, Oregon RFID HDX-2, Destron Fearing FS2001-ISO
FDX-B (full-duplex) 30-50 cm flat-plate, 40-60 cm pass-throughAquaculture tanks, raceways, broodstock management, tilapia / salmon hatcheryBiomark 601, Destron Fearing Pocket Reader EX, Oregon RFID FDX

Welfare & 2% body-weight rule — AFS Use of Fishes in Research

Operating playbook — aquaculture and fisheries programmes

Atlantic / Pacific salmon hatcheries running selective-breeding broodstock commonly specify 8.4 × 1.4 mm FDX-B micro PIT tags body-cavity injected at 55-60 mm fork length, with DNA parentage genotyping cross-referenced against the 15-digit ISO ID. AquaGen, Hendrix Genetics Aquaculture, Stofnfiskur, Benchmark Genetics, and Genus Aquaculture all operate broodstock programmes built around individual-animal tracking across multiple generations, with estimated breeding values calculated in AquaManager / Fishtalk and confirmed at harvest weighing with Biomark / Oregon RFID / Destron Fearing handheld readers.

Wild-salmon ESA research under NMFS Section 10(a)(1)(A) permits commonly specifies 12 × 2.12 mm HDX tags for PTAGIS-compatible detection. Bonneville / McNary / John Day / Lower Granite / Ice Harbor dam-bypass arrays read smolts on outmigration; upstream antenna suites on Idaho / Oregon / Washington streams read returning adults. The Comparative Survival Study and Smolt Monitoring Program ingest detections into PTAGIS for Magnuson-Stevens Act rebuilding-plan analytics. AFS Use of Fishes in Research welfare protocols and AVMA 2020 anaesthesia guidance gate the IACUC permit.

Sturgeon (Acipenser spp.) and European eel (Anguilla anguilla) programmes — both CITES Appendix I — commonly specify 23 × 3.85 mm long-range tags for juvenile stocking and 12 × 2.12 mm micro tags for eel post-elver life stages. Traceability from hatchery to harvest is a regulatory precondition for international trade; the ISO 11784/11785 15-digit ID + Lacey Act + CITES documentation chain is routinely audited.

Tilapia / striped-bass / catfish commercial aquaculture commonly specifies 12 × 2.12 mm FDX-B standard tags for growth-rate trials, feed-formulation work (Skretting NUTRACE + Cargill iQuatic + Pharmaq Analytiq), and stocking-density optimisation. Individual weight-gain telemetry feeds Xpert Sea / Manolin / Aquabyte growth-model dashboards and Pharmaq / Zoetis Fish Vet Group vaccine-trial efficacy analysis.

Ornamental-fish and koi high-value-specimen programmes commonly specify 12 × 2.12 mm FDX-B tags for insurance (high-value specimens at EUR 100k+), theft prevention, and pedigree registration with breed societies. The AAHA Universal Pet Microchip Lookup does not cover fish directly, but pedigree associations (All Japan Nishikigoi Promotion Association, ZNA) maintain their own 15-digit ID registries keyed to the ISO transponder.

Automated detection-station architecture

  • Flat-plate antennas — horizontal or vertical mount at raceway outlets, pond drains, tank drains; 30-70 cm read range depending on HDX vs FDX-B.
  • Pass-through loop antennas — circular loop in-stream; fish swim through; 60-90 cm detection volume; HDX-preferred for Columbia River PTAGIS stations.
  • Multi-antenna array readers — Biomark IS1001-MTS, Oregon RFID multi-antenna HDX reader, Destron Fearing FS2001-ISO; simultaneous detection across 4-16 antenna lanes.
  • Solar + cellular remote stations — Campbell Scientific dataloggers, cellular modem uplink, PTAGIS-compatible file format; enables PTAGIS + regional-monitoring integration at remote stream sites without grid power or fiber.
  • Fish-ladder / dam-bypass integration — built into Bonneville / McNary / John Day / Lower Granite / Ice Harbor smolt-monitoring systems operated under NMFS ESA permits.

Deployment timeline

  1. Week 0-4 — species selection + welfare IACUC

    Species / size-at-tagging / tag-mass-to-fish-mass ratio calculated per AFS Use of Fishes in Research. IACUC protocol drafted citing AVMA 2020 + AALAS / FELASA. HDX vs FDX-B chosen based on detection-station infrastructure (PTAGIS / Biomark / Oregon RFID / Destron Fearing).

  2. Week 4-10 — pilot tagging + retention assay

    1,000-5,000 pc pilot batch tagged with pre-loaded single-use injector needles (12 g / 14 g / 16 g). 6-month retention and short-term mortality assay run. ISO 24631-1 conformance + ISO 24631-6 performance verified. EO sterilisation SAL 10^-6 documented; ethylene-oxide residual tested per ISO 10993-7.

  3. Month 3-12 — production scale + detection-station integration

    Scale to 50k-500k pc broodstock / release batch. PTAGIS / regional-monitoring integration — data feeds Smolt Monitoring Program + Comparative Survival Study + aquaculture operator (AKVAgroup / Pentair / Skretting / Pharmaq) growth + feed-conversion analytics. Biomark / Oregon RFID / Destron Fearing reader ecosystem aligned.

  4. Year 2+ — traceability renewal + CITES / Lacey audit

    Sturgeon / eel / Atlantic-salmon CITES documentation renewed. Lacey Act chain-of-custody audited. EU 2016/1012 Zootechnical + CFP catch-documentation + EU 2017/625 Official Controls + USDA APHIS VS 16-4 / 7001 live-animal export paperwork maintained.

Aquaculture and fisheries applications

  • Broodstock selective breeding — salmon (AquaGen, Benchmark, Hendrix), tilapia (GenoMar, Hendrix GIFT), shrimp (CP Foods, BMK Genetics), trout (Troutlodge, Riverence).
  • Growth + feed-conversion trials — Skretting NUTRACE, Cargill iQuatic, BioMar, Aller Aqua commercial trial programmes.
  • ESA wild-fisheries research — NMFS / NOAA Columbia River PTAGIS; USFWS refuge salmonid monitoring; Pacific States Marine Fisheries Commission data ingest.
  • CITES / endangered-species aquaculture — sturgeon caviar trade, European eel restocking, Atlantic salmon listed-stock recovery.
  • Vaccine efficacy + health trials — Pharmaq Analytiq, Zoetis Fish Vet Group, Elanco Aquaculture challenge-trial individual-fish telemetry.
  • Ornamental + koi high-value-specimen — pedigree registration, insurance documentation, theft recovery via ISO 15-digit ID lookup.

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FAQ

What is the minimum fish size for PIT-tag injection under the AFS welfare rule?

The 1.4 × 8 mm micro PIT tag (~0.03 g) can be body-cavity injected into salmonids as small as 55-60 mm fork length (≈1.5-3 g), maintaining the AFS Use of Fishes in Research 2 % tag-to-fish mass threshold. The 2.12 × 12 mm standard tag (~0.10 g) requires fish ≥5 g (≈80-100 mm). For fish below 55 mm, visible implant elastomer (VIE) or alphanumeric visible-implant (VI) marks are the pre-tagging interim. AVMA 2020 + AALAS / FELASA protocols require MS-222 or AQUI-S 20E anaesthesia plus aseptic technique; IACUC approval is required for university and agency programmes.

How does a PTAGIS-compatible station differ from an aquaculture tank reader?

PTAGIS-spec Columbia River detection uses 12 × 2.12 mm HDX tags read through in-stream pass-through loop antennas (60-90 cm detection volume) paired with Biomark IS1001-MTS, Oregon RFID HDX-2, or Destron Fearing FS2001-ISO multi-antenna readers. Solar + cellular remote stations with Campbell Scientific dataloggers upload detection records in the PTAGIS-compatible file format. Aquaculture tank / raceway systems typically use 12 × 2.12 mm FDX-B tags with flat-plate or tunnel antennas (30-50 cm range) integrated into AKVAgroup Fishtalk, Pentair Select, or Pharmaq Analytiq growth / feed-conversion dashboards.

What regulatory documentation covers sturgeon and European eel aquaculture PIT tagging?

Sturgeon (Acipenseriformes spp.) is listed under CITES Appendix I, which requires a complete hatchery-to-harvest traceability chain for international trade; European eel (Anguilla anguilla) is listed under CITES Appendix II. In the US, Lacey Act (16 USC §3371-3378) traceability + USDA APHIS VS Form 16-4 / 7001 + USFWS 50 CFR Part 17 cover import/export. In the EU, Regulation 1380/2013 (CFP) catch-documentation + EU 2017/625 Official Controls + EU 2016/1012 Zootechnical cover aquaculture supply-chain audits. The ISO 11784/11785 15-digit unique ID + ISO 24631 conformance + performance certification forms the identifier backbone.

Does PIT tagging affect fish growth or survival?

Published research across dozens of species (summarised in AFS Use of Fishes in Research 2014, updated 2020) confirms that properly injected PIT tags do not significantly affect growth rate, swimming performance, or survival when tag mass is under 2 % of fish body mass. Short-term (24-48 h) procedural mortality is typically <1 % with an experienced operator using aseptic technique and AVMA 2020 anaesthesia protocols. Retention exceeds 98 % at 6 months when body-cavity injected per PTAGIS-referenced protocol. EO sterilisation per ISO 11135 (SAL 10^-6) + ethylene-oxide residual testing per ISO 10993-7 eliminate post-injection infection risk.

Sources & references

Primary standards, OEM datasheets and regulatory documents cited by this article. All URLs were verified on the access date shown below.

  1. ISO 11784:1996 Radio frequency identification of animals — Code structureISO · Nov 1, 1996 · accessed Apr 23, 2026

    Governs the 15-digit animal-ID code structure used across aquaculture PIT tagging.

  2. ISO 11785:1996 Radio frequency identification of animals — Technical conceptISO · Nov 1, 1996 · accessed Apr 23, 2026

    Defines FDX-B and HDX protocols at 134.2 kHz referenced by Biomark, Oregon RFID, Destron Fearing aquaculture readers.

  3. ISO 24631-1:2017 Radiofrequency identification of animals — Evaluation of conformance of transpondersISO · Jul 1, 2017 · accessed Apr 23, 2026

    Conformance test framework for aquaculture and fisheries PIT-tag suppliers.

  4. ISO 24631-6:2020 Performance evaluation of transponders (HDX + FDX-B)ISO · Jan 15, 2020 · accessed Apr 23, 2026

    Performance-envelope certification for PTAGIS and aquaculture monitoring-station deployments.

  5. PTAGIS — Pacific States Marine Fisheries Commission PIT Tag Information SystemPacific States Marine Fisheries Commission · Aug 1, 2024 · accessed Apr 23, 2026

    Columbia River salmonid PIT-tag detection + data-hosting reference infrastructure.

  6. NMFS / NOAA Fisheries Endangered Species Act Research Permit FrameworkNational Marine Fisheries Service · Mar 10, 2024 · accessed Apr 23, 2026

    Section 7 + 10(a)(1)(A) research permits under which PIT tagging of listed stocks is conducted.

  7. American Fisheries Society + AIFRB Use of Fishes in Research GuidelinesAmerican Fisheries Society · Jun 1, 2014 · accessed Apr 23, 2026

    Defines the 2% tag-to-fish mass welfare threshold and aseptic / anaesthesia protocol expectations.

  8. AVMA Guidelines for the Euthanasia of Animals (2020 Edition)American Veterinary Medical Association · Jan 1, 2020 · accessed Apr 23, 2026

    Aquatic-species anaesthesia + welfare framework referenced by IACUC committees for PIT-tag protocols.

  9. CITES Appendix I + II Species DatabaseConvention on International Trade in Endangered Species of Wild Fauna and Flora · Feb 23, 2024 · accessed Apr 23, 2026

    Lists sturgeon (Acipenseriformes) Appendix I + II, European eel (Anguilla anguilla) Appendix II, Atlantic salmon listed stocks; governs aquaculture traceability exports.

  10. ISO 10993-1:2018 Biological evaluation of medical devicesISO · Aug 1, 2018 · accessed Apr 23, 2026

    Biocompatibility framework for Parylene-C-coated medical-grade borosilicate glass PIT tags implanted in live fish.

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