Blue Carbon6 min read
The Seaweed Carbon Debate: Hype, Hope and the Hard Numbers
How much carbon does seaweed really lock away? A sober guide to the sequestration claims, the science behind them, and where the evidence actually lands.
Priya Raman ·
The Tidewright Journal
Everything we know about growing back the ocean.
Encyclopedia entries, coastal atlas guides, science explainers, farming know-how and recipes — written by Tidewright’s scientists, engineers, chefs and field crews, and open to everyone.
Farming10 min read
Seaweed Farm Economics: The Real Costs, Yields and Revenue Beneath the Buoys
An honest look at small seaweed farm economics: start-up and operating costs, realistic yields per line, kelp prices, and the levers that decide profit or loss.
Naomi Reyes ·
Farming9 min read
Seaweed Farm Permits: Navigating Leases, Licences and Consent
How seaweed farm permitting works: site leases, environmental assessment, navigation and fisheries consultation, timelines, costs and tips for approval.
Naomi Reyes ·
Kitchen9 min read
Seaweed Nutrition: Minerals, Iodine, and How Much Is Too Much
A clear-eyed guide to seaweed nutrition: what's actually in kelp, nori and dulse, how iodine varies wildly by species, and how much is safe to eat.
Sofia Andersson ·
Farming7 min read
Pests and Diseases of Farmed Seaweed: Identification and Response
How to spot and manage the main pests and diseases of farmed kelp — epiphytes, grazing snails, ice-ice, endophytic infections and more — with a practical response playbook.
Naomi Reyes ·
Farming8 min read
Post-Harvest Processing: Drying, Blanching, Freezing, Milling
What to do with freshly harvested kelp: a practical comparison of drying, blanching, freezing, fermenting and milling — shelf life, quality, cost and best-fit markets.
Naomi Reyes ·
Farming8 min read
Seaweed Seed Stock: From Spores to Seeded Line in the Hatchery
Kelp farming begins in a hatchery, not the ocean. How seaweed seed stock is made: life cycles, sorus selection, spore seeding, nursery growth and genetic matching.
Dr. Elias Brandt ·
Blue Carbon7 min read
Sinking Seaweed for Carbon Removal: The Promise, the Physics and the Open Questions
Ocean biomass sinking proposes growing seaweed at the surface and sending it to the deep sea. An honest explainer of the physics, methods and the questions still open.
Priya Raman ·
Blue Carbon9 min read
Sediment Carbon vs Biomass Carbon: Where the Real Blue Carbon Lives
Most blue carbon sits underwater in soil, not in leaves. Why sediment carbon dominates mangrove and seagrass accounting — and what that means for kelp.
Priya Raman ·
Farming9 min read
Sourcing Kelp Seed Stock: Hatcheries, Wild Collection and the Procurement Calendar
Where farm kelp seed really comes from: buying from hatcheries, permitted wild sorus collection, provenance rules, quality checks and ordering lead times.
Dr. Elias Brandt ·
Field Notes9 min read
Seeding Season in Kushiro: Learning Kombu From the People Who Named It
A field note from Hokkaido's kombu coast: autumn seeding with the Kushiro growers' guild, and what a century of kombu craft teaches a restoration nursery.
Dr. Theo Nakamura ·
Farming8 min read
Freezing a Forest: Cryopreservation of Kelp Seedstock
Cryopreservation turns living kelp gametophytes into a permanent seed library: the bench protocol, quality checks and storage rules that make it work.
Dr. Elias Brandt ·
Farming11 min read
Setting Up a Seaweed Hatchery: Culture Room to Seeded Twine
A practical guide to building a small kelp hatchery: culture room design, seawater systems, equipment, budgets and the weekly workflow that produces seeded twine.
Naomi Reyes ·
Encyclopedia8 min read
Sieve Kelp (Agarum clathratum): The Perforated Puzzle of the Arctic Reef
Sieve kelp (Agarum clathratum) wears a blade full of holes nobody has fully explained — biology of this Arctic kelp and the riddle of the holes.
Dr. Mara Ellison ·
Explore8 min read
Snorkeling Safety in Kelp Country: A Practical Guide for Cold-Water Coastlines
Kelp forests are safe, magical snorkeling — if you respect cold water, surge and canopy. Skills, gear, hazards and spots for your first kelp snorkel.
Dr. Theo Nakamura ·
Encyclopedia9 min read
Southern Rock Lobster (Jasus edwardsii): Species Profile
Southern rock lobster (Jasus edwardsii) is the reef's top urchin predator. Its biology, fishery and role in stopping barrens — a species profile.
Dr. Mara Ellison ·
Encyclopedia9 min read
Stalked Tunicates and Sea Squirts of the Kelp Forest: A Group Profile
Sea squirts look like alien machinery but land among our closest living relatives. Meet the stalked tunicates of kelp understories — anatomy, role and invaders.
Dr. Theo Nakamura ·
Farming9 min read
How to Start a Small Seaweed Farm: A Practical Beginner's Guide
Starting a small seaweed farm is achievable in one to two years for a committed team. Permits, site selection, gear, costs, and the mistakes that sink first farms.
Naomi Reyes ·
Atlas8 min read
Stewart Island / Rakiura: New Zealand's Southern Kelp
Bladder kelp beds, a storied pāua fishery, tea-coloured inlets and daylight kiwi: a guide to Stewart Island/Rakiura, New Zealand's southern kelp coast.
Dr. Mara Ellison ·
Kitchen9 min read
Storing Seaweed: Dried, Fresh, Frozen and Fermented
Seaweed storage done right keeps flavour vivid and nutrition intact. How to store dried, fresh, frozen and fermented seaweed — plus how to rehydrate properly.
Sofia Andersson ·
Farming10 min read
Storm-Proofing a Kelp Farm: Design for the Worst Week of the Year
How to design and prepare a seaweed farm for storm survival: load cases, safety factors, storm checklists, and the preparation that decides what breaks.
Naomi Reyes ·
Field Notes9 min read
Field Notes: Storm Season on Catalina
A Pacific storm season tests Tidewright's Catalina restoration site. Field notes on survey dives between swells, storm-torn kelp, and which Holdfast lines held.
Jack Callum ·
Encyclopedia8 min read
Strawberry Anemone: The Cloning Carpet of the Reef
Strawberry anemone Corynactis californica: the cloning corallimorph that carpets kelp forest reefs — how it feeds, clones and spreads.
Dr. Theo Nakamura ·
Encyclopedia9 min read
Sunflower Sea Star (Pycnopodia helianthoides): Species Profile
The sunflower sea star was the kelp forest's great urchin hunter. Wasting disease erased billions of them — and the consequences reshaped coastlines.
Dr. Mara Ellison ·