5 articles
Field notes from a winter holdfast census across a Tasmanian reseeding site: urchin counts on treated vs control transects, and what we changed for next season.
Jack Callum ·
Five trainees, two instructors, one Tasmanian barren. What it actually takes to turn working divers into an urchin-removal crew, and what the first week teaches them.
Jack Callum ·
Dawn on Tasmania's east coast: four divers, two hammers, and a barren the size of a football pitch. What an urchin cull actually looks like from inside the vis.
Jack Callum ·
Rising CO₂ acidifies seawater — but it also fertilises algae. What ocean acidification really does to kelp growth, urchins and whole reef food webs.
Dr. Theo Nakamura ·
Acid kelp (Desmarestia) stores battery-strength acid inside its own cells — the strangest chemical defence in the kelp forest.
Dr. Theo Nakamura ·