Atlas9 min read
Sydney's Crayweed Coast: The City That Planted a Forest Back
From Palm Beach to Kurnell, a snorkel-and-dive trail along Sydney's replanted crayweed reefs: what to see, when to go, and how a city regrew a forest.
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.
Atlas7 min read
Tasmania's East Coast: The Front Line of Kelp Loss — and Recovery
Tasmania's east coast has lost the vast majority of its giant kelp forests to warming seas and urchins. Explore what happened here, and what's coming back.
Dr. Lena Fischer ·
Atlas11 min read
Tasmania's Vanishing Giant Kelp: What Happened and What's Being Done
Tasmania lost around 95 percent of its giant kelp forests in decades. Here's the science of the collapse, the urchin invasion — and the restoration race to bring it back.
Dr. Theo Nakamura ·
Field Notes10 min read
The Gear Graveyard: Every Prototype That Sank, Snapped or Tangled
A respectful tour of Tidewright's failed hardware: flooded hulls, fouled reels, an anchor that walked, and the eleven lessons that built the working fleet.
Jack Callum ·
Encyclopedia7 min read
Tiger Rockfish: The Banded Hermit of Deep Reef Edges
The tiger rockfish is a long-lived, vividly banded Pacific rockfish of deep rocky reefs and deep kelp-forest edges — beautiful, slow-growing and easily overlooked.
Dr. Mara Ellison ·
Science9 min read
Trophic Cascades in Kelp Forests: How Sea Otters Keep Forests Standing
A trophic cascade happens when a predator's removal rewrites an entire ecosystem. The sea otter–urchin–kelp story is ecology's classic case — here's how it works.
Dr. Mara Ellison ·
Science8 min read
What a Kelp Forest Sounds Like: Soundscapes, Shrimp Snaps and Acoustic Monitoring
Kelp forests hiss, rasp and hum. Meet the shrimp, urchins and fish behind the noise — and the hydrophones turning the din into reef science.
Tom Okafor ·
Atlas10 min read
Vancouver Island's Wild West Coast: Kelp, Otters and the Pacific Rim
Barkley Sound, Clayoquot Sound and the full weight of the open Pacific: how Vancouver Island's west coast became Canada's kelp laboratory and its best cold-water wild coast.
Tom Okafor ·
Encyclopedia8 min read
Wavy Turban Snail (Megastraea undosa): Species Profile
The wavy turban snail is the big, armoured grazer of southern California kelp forests — a hand-sized shell with a built-in door and a small fishery of its own.
Dr. Theo Nakamura ·
Field Notes8 min read
Field Notes: Week One Seeding the Tinderbox Reefs
Tidewright's field crew logs their first week seeding Holdfast lines at Tinderbox, Tasmania — survey dives, southerly swells, and 40,000 metres of seeded line.
Jack Callum ·
Encyclopedia8 min read
Winged Kelp (Alaria esculenta): The Edible Kelp Growing on Exposed Reefs
Winged kelp (Alaria esculenta) is the wave-exposure specialist of Atlantic shores — and a mild, edible kelp. Its biology, range and kitchen appeal.
Dr. Theo Nakamura ·
Encyclopedia9 min read
Wolf Eel (Anarrhichthys ocellatus): Species Profile
The wolf eel is not an eel and nothing to fear — a devoted, den-dwelling wolffish that crushes sea urchins for a living and guards its eggs for months.
Dr. Mara Ellison ·
Encyclopedia8 min read
Acid Kelp (Desmarestia): The Seaweed That Carries Its Own Acid
Acid kelp (Desmarestia) stores battery-strength acid inside its own cells — the strangest chemical defence in the kelp forest.
Dr. Theo Nakamura ·
Atlas8 min read
Banks Peninsula and Akaroa: Volcano Rims Under Water
Eroded volcano harbours, Hector's dolphins, bull kelp and pāua reefs: a field guide to Banks Peninsula and Akaroa, Canterbury's wild maritime backyard.
Dr. Theo Nakamura ·
Atlas8 min read
Kelp Coasts of Asturias: Green Spain's Underwater Forests
A coastal atlas guide to the kelp coasts of Asturias in northern Spain — cool Cantabrian water, barnacle-gathering cliffs, and the southern edge of Europe's kelp.
Dr. Elias Brandt ·
Farming9 min read
Seaweed Biostimulant Extraction: Cold Press, Alkaline and Fermentation Compared
How seaweed biostimulants are actually made, from cold-press juice to alkaline hydrolysate and fermented extracts — and what each method preserves, destroys and costs.
Naomi Reyes ·
Blue Carbon9 min read
The Life of a Blue Carbon Credit: From Feasibility to Issuance
Follow a blue carbon credit through its full project cycle — feasibility, design, validation, monitoring, verification, issuance and retirement.
Priya Raman ·
Encyclopedia7 min read
California Moray: The Kelp Reef's Patient Ambusher
Meet the California moray eel — a nocturnal, crevice-dwelling ambush predator of Pacific kelp reefs, with pharyngeal jaws and a reputation it doesn't deserve.
Dr. Theo Nakamura ·
Encyclopedia8 min read
Clown Dorid: The Polka-Dotted Grazer of the Kelp Reef
Clown dorid (Triopha catalinae) species profile: identifying the polka-dotted nudibranch, its bryozoan diet, rhinophores and where to find it on kelp reefs.
Dr. Theo Nakamura ·
Careers8 min read
Coastal Resilience Planner: A Career Building Shorelines That Last
Coastal resilience planners decide how shorelines adapt to rising seas and fiercer storms. A guide to the role, the skills, the employers and the roads in.
Dr. Lena Fischer ·
Encyclopedia8 min read
Common Eider (Somateria mollissima): The Sea Duck of Northern Kelp Coasts
Meet the common eider: the northern sea duck that dives for mussels in the kelp shallows, crushes shells whole and gave its down to a centuries-old harvest.
Dr. Mara Ellison ·
Atlas9 min read
Cook Inlet, Alaska: Kelp Beds in the Land of Bore Tides
Cook Inlet is Alaska's great tidal estuary — bore tides, glacial silt, belugas and salmon, with rich cold-water kelp beds in its clear pockets. A Coastal Atlas guide.
Dr. Lena Fischer ·
Encyclopedia7 min read
Coralline Sculpin (Artedius corallinus): A Master of Pink Camouflage
Identify the coralline sculpin — the small California reef fish whose pink-and-grey skin lets it vanish against crusts of coralline algae.
Dr. Theo Nakamura ·
Atlas9 min read
Dive Guide: Goat Island Marine Reserve, New Zealand
Goat Island — Cape Rodney–Okakari Point — was New Zealand's first marine reserve and remains its finest shore dive: big snapper, crayfish and golden kelp in five metres.
Tom Okafor ·