Brittle Stars of the Kelp Forest: A Group Profile
Brittle stars are the kelp forest's most numerous residents — five-armed floor-dwellers by the thousand. Learn how they differ from sea stars and why they matter.
Dr. Mara Ellison ·
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.
Brittle stars are the kelp forest's most numerous residents — five-armed floor-dwellers by the thousand. Learn how they differ from sea stars and why they matter.
Dr. Mara Ellison ·
Seven gill slits, one rear-set dorsal fin, and fossils deep in its past: the broadnose sevengill is the ancient apex cruiser of temperate kelp coasts worldwide.
Dr. Theo Nakamura ·
Kelp-specific buddy protocols: staying paired inside a canopy, the one-minute separation drill, entanglement assists and pre-dive checks that matter.
Tom Okafor ·
Wild or farmed, local or imported — seaweed labels rarely tell you what matters. A practical shopper's guide to sourcing seaweed with confidence and conscience.
Sofia Andersson ·
California sea lions are the kelp coast's most boisterous residents — acrobatic, intelligent and climate-sensitive. Ecology, biology and the Channel Islands nursery.
Dr. Mara Ellison ·
Northern Spain's Cantabrian coast holds kelp at the shrinking warm edge of its European range — the continent's best-documented climate front line underwater.
Dr. Lena Fischer ·

Blue carbon credits can fund real coastal restoration — or expensive stories. A practical due-diligence checklist for corporate buyers before they sign.
Priya Raman ·
Citizen science is a genuine on-ramp to paid marine work. How to choose programs, build evidence of skill, and convert reef volunteering into a career.
Jack Callum ·
Conservation photography is a craft and a business. A working ocean photographer on skills, gear, income streams, ethics and how to actually get published.
Tom Okafor ·
Fresh bull kelp is one of the great undervalued ingredients of cold-water coasts. How to prep stipe and blade, and the techniques that make them shine.
Sofia Andersson ·
What the ICVCM's Core Carbon Principles are, how the CCP label works, and what it does — and doesn't — tell buyers of blue carbon credits.
Priya Raman ·
Join Tidewright's dive survey team as they count an advancing urchin front on Tasmania's coast — the methodical, cold, essential math of kelp restoration.
Jack Callum ·
Crispy kelp chips turn fresh or dried kelp fronds into a shattering, salty snack in about five minutes. Oven, air-fryer and fried versions, plus seasoning ideas.
Sofia Andersson ·
Kelp carbon only matters for climate if it stays out of the air for centuries. How kelp carbon reaches the deep ocean — and what engineered sinking must prove.
Dr. Lena Fischer ·
Gerstle Cove in Salt Point State Park is Sonoma's signature shore dive — bull kelp, red abalone and sculpted sandstone reefs in one of California's first marine reserves.
Tom Okafor ·
After 90 days alone on the Great Southern Reef, autonomous vessel Drifter 7 returned with 4.2 million images and one bent propeller. This is its story.
Jack Callum ·

Dulse flakes are seaweed's easiest habit. How to toast them, where to sprinkle them, how they differ from kelp powder, and buying tips for the good stuff.
Sofia Andersson ·
Dungeness crab species profile: the life cycle from drifting larva to fishing pot, sand-flat and kelp-edge habitat, moulting growth and fishery stewardship.
Dr. Mara Ellison ·

Echosounders see the part of a kelp forest satellites and divers can't — its living volume. How hydroacoustic surveys map canopy height, density and biomass.
Dr. Mara Ellison ·
Environmental DNA lets scientists census a kelp forest from a few litres of seawater. How eDNA surveys work, what they miss, and why they matter.
Dr. Mara Ellison ·
Wind blows, water turns ninety degrees. The gentle physics of Ekman transport — the spiral beneath the surface, coastal upwelling, gyre hills and spills.
Dr. Lena Fischer ·
Every few years the Pacific reorganises itself and kelp forests pay the price. How El Niño starves kelp — and how La Niña's cool afterwash lets it recover.
Dr. Mara Ellison ·
Both make headlines as warm water, but El Niño and marine heatwaves are different beasts. How they differ, how they interact, and what each does to kelp.
Dr. Lena Fischer ·

Inside the Falkland Islands' giant kelp beds — among the most extensive on Earth — and the penguins, seals and steamer ducks that run on them.
Dr. Lena Fischer ·