Aquaculture Module Immature Harvest Event
Immature harvest events refer to immature seafood products being harvested from hatchery facilities.
Examples include:
- Fingerling/fry tilapia harvested from a hatchery facility to be moved to a growout pond.
- Immature salmon harvested from a hatchery so that they can be transferred to net pens.
Event Profile
Immature harvest events are identified based on the following event characteristics:
KDE | Value |
type | ObjectEvent |
action | ADD |
bizStep | commissioning |
disposition | active |
productClassification of developing.KDE Requirements
The following KDEs are required on the root of a immature harvesting event, in addition to the Core and Seafood requirements.
| KDE | Description | Example Value |
|---|---|---|
| bizLocation | Facility where the immature animals were harvested; validated as a GLN with related master data | urn:epc:id:gln:1234567890123 |
| readPoint | A readPoint object with an id property equal to a geo formatted coordinate pair |
geo:37.860236,-123.144697 |
| informationProvider | A URN formatted PGLN or GDST party identifier | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
| productOwner | A URN formatted PGLN or GDST party identifier | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
| humanWelfarePolicy | Indicates whether a human welfare policy was in place during the event | internal policy, 3P audit, none |
Instance Lot Master Data (ILMD) Requirements
The following properties should be available on the ilmd property of the immature harvesting event.
| KDE | Description | Example Value |
|---|---|---|
| productionMethodForFishAndSeafoodCode | Code for how the seafood was produced; must match a value from the GS1 code list ProductionMethodForFishAndSeafoodCode (version 15) | AQUACULTURE |
| broodstockSource | Whether broodstock for the batch is domestic or wild | domestic, wild |
Certificate Requirements
An immature harvest event must carry at least one complete certificate in its certificationList, either on the event or in the ilmd. GDST 2.0 does not name certification types in its normative event profiles; the controlled list of supported values is maintained in the Certification Types article.
Certificates are required to have the following properties
| Certificate Property | Description | Example Value |
|---|---|---|
| certificationType | A URN formatted string defining the type of certificate | urn:gdst:certType:harvestCert |
| certificationAgency | The name of the certificate program owner | WHO |
| certificationStandard | The name of the standard associated with the certificate | WHO Human Decency Policy |
| certificationValue | An additional descriptor of the certificate if there are different quality values for the certificate | Quality class 4 |
| certificationIdentification | The ID of the certificate | 0987654321 |
Full JSON Example
{
"@context": [
"https://ref.gs1.org/standards/epcis/epcis-context.jsonld",
{
"gdst": "https://traceability-dialogue.org/epcis"
}
],
"type": "ObjectEvent",
"eventTime": "2026-04-18T01:58:47.3535287+00:00",
"eventTimeZoneOffset": "+00:00",
"eventID": "urn:uuid:dab8e014-d69a-430d-b450-e48797c9bd7f",
"epcList": [],
"action": "ADD",
"bizStep": "commissioning",
"disposition": "active",
"readPoint": {
"id": "geo:37.7749,-122.4194"
},
"bizLocation": {
"id": "urn:gdst:example.org:location:loc:solution.hatchery"
},
"quantityList": [
{
"epcClass": "urn:gdst:example.org:product:lot:class:solution.fryling.lot1",
"quantity": 1000.0,
"uom": "KGM"
}
],
"ilmd": {
"gdst:broodstockSource": "domestic",
"cbvmda:productionMethodForFishAndSeafoodCode": "AQUACULTURE",
"cbvmda:certificationList": {
"certification": [
{
"gdst:certificationType": "urn:gdst:certType:harvestCert",
"certificationAgency": "Harvest Agency",
"certificationStandard": "Harvest Certificate Standard",
"certificationValue": "ghi789",
"certificationIdentification": "HARV-0003"
},
{
"gdst:certificationType": "urn:gdst:certType:humanPolicy",
"certificationAgency": "Human Policy Agency",
"certificationStandard": "Human Welfare Policy Standard",
"certificationValue": "pqr678",
"certificationIdentification": "HUMN-0006"
},
{
"gdst:certificationType": "urn:gdst:certType:legalAuth",
"certificationAgency": "Legal Auth Agency",
"certificationStandard": "Legal Authorization Standard",
"certificationValue": "mno345",
"certificationIdentification": "LEGL-0005"
}
]
}
},
"gdst:productOwner": "urn:gdst:example.org:party:solution.hatchery",
"gdst:humanWelfarePolicy": "3P audit",
"cbvmda:informationProvider": "urn:gdst:example.org:party:solution.hatchery"
}