Spore BankSpore BankCalifornia Sea Grant

Draft standard v0.1

A certification program for seaweed seed that does not exist yet

No California agency certifies seaweed seed. This is the draft standard we think should exist: four tiers, written to be self-assessed today and audited tomorrow.

How to applyPathway to recognition

Why certify seed at all

  • Disease and pest transfer

    Seed moves water with it. Epiphytes, grazers, and pathogens hitchhike on gametophyte cultures and seeded twine, and a nursery that supplies ten farms can seed a problem into ten bays at once. Shellfish learned this the hard way; seaweed has no equivalent screen.

  • Provenance and local adaptation

    Kelp populations are locally adapted along the California coast. Seed grown from distant broodstock can underperform, and at scale it can also swamp local genetics. Certification makes origin a documented fact instead of a verbal claim.

  • Viability and honest lead times

    A grower plans a season around seed that shows up on time and settles. Today availability is word of mouth. Recorded viability checks and published lead times turn seed into something a business plan can survive.

  • Traceability when something goes wrong

    If a crop fails or a pest shows up, the first question is where the seed came from. Lot numbers and retained records answer that in an afternoon instead of never.

The four tiers

Each tier assumes the one below it. A source can stop at any tier and still be listed honestly.

Tier 1

Registered Source

A seed source that is who it says it is, holds the permits it needs, and publishes what it produces.

Who it is for: Research collections, university hatcheries, tribal programs, and new nurseries getting started.

  • Verified organization identity and a named responsible person for seed production
  • Current CDFW aquaculture registration (or a documented research exemption) on file
  • Declared species list, seed forms, and production seasons
  • Written record of where broodstock was collected: site, date, collector, permit
  • Contact route for growers and a stated policy on who the source can supply
Tier 2

Traceable Seed

Every batch of seed can be traced back to a specific wild collection event and forward to the farm that received it.

Who it is for: Nurseries actively supplying commercial or restoration growers.

  • Batch-level lot numbers on every seed delivery, tied to a broodstock collection record
  • Written sourcing distance policy (how far from the planting site broodstock may originate)
  • Number of parent individuals per batch recorded, with a stated minimum
  • Delivery records retained for a defined period and available to the receiving grower
  • Viability or density check recorded at release, with method stated
  • Annual self-assessment submitted and reviewed
Tier 3

Biosecure Hatchery

The hatchery is run so that pests, epiphytes, and pathogens are not moved between water bodies along with the seed.

Who it is for: Sources shipping across regions, or supplying multiple farms in a season.

  • Written biosecurity plan: incoming water treatment, quarantine of new broodstock, cleaning and disinfection SOPs
  • Documented inspection of broodstock and cultures for epiphytes, grazers, and visible disease
  • Separation of culture lines by origin water body
  • Waste and effluent handling that does not release cultured material to the environment
  • Staff training records against the biosecurity plan
  • Site verification by a reviewer, on-site or by documented remote audit
Tier 4

Certified Seed Bank

Independently audited, genetically documented, health-screened seed a grower or an agency can rely on without asking further questions.

Who it is for: Established seed banks positioned to serve the whole state, and any program a permitting agency would want to point to.

  • All Tier 1–3 criteria met and current
  • Third-party audit within the past 24 months, with findings closed out
  • Genetic provenance documentation per line, including region of origin and generation count
  • Health screening on a defined schedule using a documented method and a named laboratory
  • Published availability and honest lead times, kept current
  • Corrective-action log open to the reviewer
  • Public certificate with an issue date and an expiry date

Borrowed from shellfish, on purpose

Shellfish seed certification took decades to build. There is no reason to redesign the mechanisms from scratch.

MechanismHow shellfish does itSeaweed equivalent proposed
Sanitation program with federal-state agreementThe National Shellfish Sanitation Program sets uniform requirements that states adopt, with the Interstate Shellfish Sanitation Conference maintaining the model ordinance and a list of certified shippers.A model seed standard maintained by a standing working group, adopted by reference rather than re-litigated state by state.
Certified-source listsBuyers can look up whether a dealer or hatchery is certified before a shipment moves.A public, dated list of certified seed banks with tier and expiry — this site.
Health certificates for seed movementStates require documented health inspection before shellfish seed is imported, with disease screening for listed pathogens.A defined inspection and screening step before seed crosses a water body or a state line.
Hatchery inspection and auditHatcheries are inspected against written biosecurity and record requirements.Tier 3 and Tier 4 audits against the biosecurity plan and provenance records.
Lot-level traceabilityTags travel with the product and identify harvest lot, date, and source.Batch lot numbers travel with each seed delivery.

Status

This is a draft published for comment, not a regulatory program

No certificate issued here carries legal weight today. The point of publishing it early is that hatchery operators, growers, tribal programs, and agency staff can argue with the criteria before anyone is asked to meet them.

Start a self-assessment