The Tidewright Journal
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.
Dall's porpoise is the slate-and-white speedster of the cold North Pacific, famous for its rooster-tail splash. Biology, range, speed and how to spot one.
Dr. Mara Ellison ·
Croatia's island-chained coast grows the Mediterranean's great brown algal canopies on drowned karst — clear water, coralligenous reefs and forests now measured in fragments.
Dr. Theo Nakamura ·
Dashima is the dried kelp behind Korean stock, banchan and temple cooking. How to choose it, store it, and cook with it — from dasima yuksu to braised kelp.
Sofia Andersson ·
Chorda filum is a true kelp disguised as a slippery brown string. Where the bootlace kelp grows, how a hollow cord survives a year, and its edible end.
Dr. Theo Nakamura ·
Decorator crabs build living costumes from algae, sponges and anemones using velcro-like hairs. How the disguise works, why it evolved and where to see it.
Dr. Mara Ellison ·
Burial is the finish line of blue carbon: organic matter locked into deep-sea sediment for centuries. Here's what burial means, how scientists prove it, and why it's rare.
Dr. Lena Fischer ·
Every spring, cold seas ignite with diatom blooms — microscopic algae armoured in glass. The whole event often hinges on one scarce element: iron. Here's how.
Dr. Mara Ellison ·
Every night, billions of animals rise hundreds of metres to feed, then sink before dawn. How the largest daily migration on Earth threads through kelp food webs.
Dr. Mara Ellison ·
How small kelp farms sell direct — pitching chefs, pricing at the market stall, building a sea-vegetable CSA, and keeping the margin the work deserves.
Naomi Reyes ·
At the Cape of Good Hope, cold Atlantic upwelling and False Bay warmth build towering kelp. A practical dive guide to Cape Point's sites, seasons and permits.
Tom Okafor ·
Deception Pass is Washington's most current-swept dive. How to time the slack, where to enter, and what lives on this bull kelp corridor between islands.
Tom Okafor ·
Loch Carron hides maerl beds, flame shells and kelp-fringed narrows. A practical Scottish sea-loch dive guide: sites, seasons, slack water and wildlife.
Tom Okafor ·
Beneath Milford Sound's dark freshwater layer lies a shallow reef of black corals and kelp. How to dive Piopiotahi: operators, seasons, gear and the signature sites.
Tom Okafor ·
Point Lobos limits divers to a handful of reserved buddy teams a day. How to get a slot, dive Whalers Cove's kelp, and respect California's oldest rules.
Tom Okafor ·
Portsea Pier packs weedy seadragons, rays and sponge gardens into a shallow, easy shore dive near Port Phillip Heads. Conditions, access, etiquette and what to see.
Tom Okafor ·
Rapid Bay's twin jetties on the Fleurieu Peninsula offer leafy seadragons, blue devils and squid in easy shore-diving depths. Access, conditions and seasons.
Tom Okafor ·
Ricketts Point Marine Sanctuary is Melbourne's easiest kelp-country snorkel and shore dive. A practical guide to the reefs, seasons and calm-water windows.
Tom Okafor ·
Whytecliff Park is Vancouver's classic shore dive: a protected bay, a plumose-covered wall and bull kelp in Howe Sound. Full access, routes and wildlife guide.
Tom Okafor ·
How working dive professionals move into ocean conservation: the roles that hire, the skills that transfer, the gaps to fill, and a realistic three-year plan.
Tom Okafor ·
Green water mutes the view but sharpens your skills. How to navigate, manage gas, and enjoy kelp diving when visibility drops below five metres.
Tom Okafor ·
Storm kelp, the highest sea cliffs in Europe and a working fishing coast — a guide to County Donegal, the rawest corner of Ireland's Wild Atlantic Way.
Tom Okafor ·
How long does dried seaweed last? Shelf-life rules, spoilage signals, rancidity in dulse, and the right way to freeze blanched kelp — a reference guide.
Sofia Andersson ·
Kelp forests export a share of everything they grow. Here's how drift kelp feeds open water, beach wrack feeds the shore, and why leaving wrack alone matters.
Dr. Mara Ellison ·
A mid-life refit of Tidewright's hardest-worked vessel: what two seasons of reef surveys did to Drifter 7, and what the wear patterns taught the design team.
Jack Callum ·