Dall's Porpoise: The Fastest Small Cetacean in the Kelp Latitudes
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 ·
16 articles
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 ·
The PPE that keeps seaweed crews alive and working: flotation, cold-water protection, gloves, boots and exposure systems for all-weather farm work.
Jack Callum ·
Winter is the secret season: empty car parks and the clearest water of the year. How to plan a first cold-weather dive weekend that ends warm, safe and smug.
Tom Okafor ·
Profile of the great sculpin — one of the largest sculpins of the North Pacific, its spiny head, ambush hunting and role in cold kelp-edge food webs.
Dr. Mara Ellison ·
Off Namibia's windswept diamond coast, the Lüderitz upwelling cell brews some of the coldest, richest water in the Benguela — and a desert-shore kelp forest.
Dr. Lena Fischer ·
Working a kelp farm means cold water, lines under tension and small crews. The complete safety framework: PPE, man-overboard drills, weather limits and lift plans.
Naomi Reyes ·
A working-day guide to seaweed farm safety: the hazards that actually hurt people, vessel and line protocols, cold-water rules and the checklists crews should run every trip.
Jack Callum ·
Stubby rose anemone (Urticina coriacea) species profile: a leathery, crimson anemone of northern rock and cobble, from Arctic seas to California kelp forests.
Dr. Mara Ellison ·
A wild swimmer's guide to kelp coastlines — choosing coves, reading kelp as a clue, entering and exiting from rock, and swimming with wildlife without disturbing it.
Tom Okafor ·
Kelp coasts are world-class paddling and unforgiving water. Dress-for-immersion rules, self-rescue skills, weather reading and float plans for cold-water kayakers.
Tom Okafor ·
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 ·

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 ·

Meet Aeolidia papillosa, the shag rug nudibranch: a cold-water sea slug that hunts anemones, steals their stinging cells and wears them as armour.
Dr. Mara Ellison ·
How to snorkel kelp beds from a kayak — anchoring without wrecking reef, entries and re-entries, drift management, and the safety spacing that matters.
Tom Okafor ·
The complete cold-water kit for kelp forest diving: wetsuit thicknesses, drysuits, hoods, gloves and the small accessories that save a dive.
Tom Okafor ·
A coastal atlas guide to Labrador's kelp: ice-scoured forests of sugar kelp and Arctic species, Inuit sea country, and a coastline warming fast.
Dr. Lena Fischer ·