Atlas11 min read
Kelp Forests of Bass Strait: The Rough Water Between Two Seas
Between Tasmania and mainland Australia, Bass Strait mixes two seas into some of the roughest, richest kelp country on Earth. An island-by-island guide.
Tom Okafor ·
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.
Kitchen8 min read
Kelp-Infused Oil: A Pantry Bottle That Tastes Like the Coast
How to infuse oil with dried kombu or dulse — the dried-not-fresh safety rule, warm vs cold infusion, pairings, and where the bottle earns its place.
Sofia Andersson ·
Encyclopedia8 min read
Lion's Mane Jellyfish (Cyanea capillata): Species Profile
Meet the lion's mane jellyfish, the cold sea's largest drifter: tentacles longer than a blue whale, a fiery sting, and an unlikely role as fish shelter.
Dr. Theo Nakamura ·
Careers8 min read
Environmental Careers in Ports and Harbours: Ecology Where the Ships Are
Ports employ environmental managers, ecologists and biosecurity officers. What these harbour-side roles involve, what they demand, and how to get hired.
Tom Okafor ·
Kitchen9 min read
Seaweed Smoothies: Tasty, Trendy — and How Much Is Too Much
Seaweed smoothies can be delicious and safe — or an iodine overdose in a glass. Species choice, gram-level dosing, and three blends that get it right.
Sofia Andersson ·
Encyclopedia9 min read
Tubesnout: The Matchstick School of the Kelp Canopy
Meet the tubesnout, the matchstick-slim schooler of Pacific kelp canopies — a stickleback relative that nests on kelp and feeds half the birds.
Dr. Mara Ellison ·
Explore9 min read
Whale Watching on Kelp Coasts: Seasons, Species and Shore Spots
Grey whales roll in kelp, humpbacks feed at its edge, right whales calve beside it. Seasons, species and shore lookouts for kelp-coast whale watching.
Tom Okafor ·
Atlas8 min read
Kelp Forests of Catalina Island: A Coastal Atlas Guide
Catalina Island is southern California's kelp capital — Casino Point, Farnsworth Bank, warm-water giants and a century of marine science under the canopy.
Dr. Mara Ellison ·
Farming9 min read
Community-Scale Seaweed Farming: Co-ops, Allotments and Shared Farms
You don't need a hectare and a vessel to farm kelp. Co-ops, allotments and shared-farm models let coastal communities grow seaweed together — here's how they work.
Naomi Reyes ·
Blue Carbon8 min read
Double Counting, Explained: Who Owns a Tonne of Blue Carbon?
Double counting decides whether a carbon credit means anything. Here's how the same tonne gets claimed twice — and how markets try to stop it.
Priya Raman ·
Field Notes8 min read
Line Fourteen Tangles: A Storm Lesson in Line Design
A southerly storm wrapped two Holdfast lines into each other off Tasmania. The dive to untangle them — and the line-spacing rule that came out of it — from the field log.
Jack Callum ·
Field Notes8 min read
Field Notes: Sounding the Edge of a Barren
A Tidewright field dispatch: transecting the moving edge of an urchin barren by Drifter sonar and drop camera, and deciding where next season's Holdfast lines go.
Jack Callum ·
Encyclopedia7 min read
Furry Hermit Crab (Paguristes ulreyi): The Kelp Forest's Shell-Swapping Scavenger
Paguristes ulreyi, the furry hermit crab of Pacific kelp forests: how to identify it, why it wears hydroid-covered shells, and its role on the reef floor.
Dr. Theo Nakamura ·
Encyclopedia8 min read
Giant Kelp (Macrocystis pyrifera): Species Profile
Giant kelp is the fastest-growing organism on Earth and the architect of undersea forests. Learn its biology, life cycle, range and why it matters.
Dr. Theo Nakamura ·
Encyclopedia8 min read
Giant Pacific Octopus (Enteroctopus dofleini): Species Profile
Meet the giant Pacific octopus: the world's largest octopus, a kelp-forest den-dweller with three hearts, blue blood and one shot at motherhood.
Dr. Theo Nakamura ·
Farming8 min read
Broodstock Management: The Hatchery's First Covenant
Behind every seeded line is a decision made months earlier: which adults to breed from. How hatcheries select, hold and manage kelp broodstock for reliable seed.
Dr. Elias Brandt ·
Careers8 min read
How to Become a Marine Ecologist: Degrees, Fieldwork and First Jobs
Want a career studying kelp forests, reefs and ocean ecosystems? A realistic map of the degrees, fieldwork, skills and first jobs that lead into marine ecology.
Dr. Mara Ellison ·
Atlas11 min read
Kelp Forests of Vancouver Island: Sea Otters, Bull Kelp and First Nations Stewardship
An island-wide guide to Vancouver Island's kelp forests: bull kelp surf coasts, sea otter recovery, and the First Nations stewardship shaping their future.
Tom Okafor ·
Science9 min read
Does Kelp Have C4 Photosynthesis? How Brown Algae Concentrate Carbon Underwater
Kelp can't open pores for CO₂ like a land plant. Here's how brown algae concentrate carbon for Rubisco underwater — and why 'C4 kelp' is a myth.
Dr. Theo Nakamura ·
Science11 min read
Light Underwater: Why Depth and Colour Decide Where Kelp Grows
Seawater filters sunlight within metres — reds vanish first, blues travel deepest. How underwater light sets the depth limits, seasons and colour of the world's kelp forests.
Dr. Lena Fischer ·
Encyclopedia8 min read
Moon Jelly (Aurelia aurita): Species Profile
Meet the moon jelly, the four-ringed drifter of harbours and kelp bays: identification, life cycle, mild sting, and why its blooms fascinate ecologists.
Dr. Theo Nakamura ·
Atlas10 min read
The Moray Firth: Dolphins, Salmon and Kelp on Scotland's Shoulder
Scotland's Moray Firth is famous for its resident bottlenose dolphins, but its quiet kelp fringes, salmon rivers and tide races reward a closer look. A coastal atlas guide.
Jack Callum ·
Atlas9 min read
Rías Baixas: Kelp, Harvesters and the Galician Tide
A ría-by-ría field guide to Galicia's drowned southern estuaries — mussel rafts, sea-spaghetti kelps and the Cíes Islands, fed by one of the Atlantic's great upwellings.
Dr. Mara Ellison ·
Farming11 min read
Iodine from Seaweed: The Industry That Started It All
For a century the world's iodine came from burned kelp. The story of kelp ash, a wartime accident in Paris, and what remains of seaweed iodine today.
Naomi Reyes ·