Skip to content

Project 6 · Northwest Pacific

Hokkaido Kombu Coast

South-east Hokkaido · Japan

Working with Hokkaido’s kombu growers — custodians of the world’s oldest seaweed-farming culture — to buffer wild kombu forests against warming currents.

Status
Established
Launched
2024
Hectares seeded
160
Program target
420 ha
Program lead
Dr. Theo Nakamura

Progress to target

38%

Illustrative program figures, part of Tidewright’s fictional record.

The program

The story so far.

Hokkaido grows kombu the way Burgundy grows wine: named coasts, inherited knowledge, fanatical grading. When wild kombu beds started failing recruitment in warm years, the growers’ guild came looking for nursery science, not lectures.

Tidewright’s role is deliberately narrow: Holdfast nursery capacity for wild-stock seeding, genetics matched to each named coast, and Canopy Ledger mapping shared openly with the guild. The kombu wisdom flows the other way — Tidewright’s graders now train in Kushiro.

Species of the reef

  • KombuSaccharina japonica
  • WakameUndaria pinnatifida
  • Ezo-bafun uniStrongylocentrotus intermedius

Partners on the water

  • Kushiro Kombu Growers’ Guild (fictional)
  • East Hokkaido Fisheries School (fictional)

Milestones

The record, season by season.

  1. 2024

    Guild partnership signed; wild-stock nursery opens near Kushiro.

  2. 2025

    160 ha seeded across four named coasts; recruitment survival 2.1× control beds (illustrative).

Work near this coast?

Councils, fisheries, dive operators and community groups — every Tidewright program runs on local partnership.

Tidewright is a fictional company created as a design and content demonstration.