Encyclopedia10 min read
Humboldt Squid: The Red Devil That Rides the Warm Years North
Humboldt squid (Dosidicus gigas): the fast-growing red devil of the Eastern Pacific, its twilight-zone life, and its warm-year marches north.
Dr. Lena Fischer ·
#ocean-warming
12 articles
Science9 min read
Marine Heatwave vs Ocean Warming: A Spike Is Not a Slope
Marine heatwaves are spikes riding on a rising baseline of ocean warming. How scientists separate the two signals — and why the difference matters for reefs.
Dr. Lena Fischer ·
Science9 min read
Sea Snot: What Marine Mucilage Events Tell Us About a Warming Ocean
Marine mucilage — the 'sea snot' that smothered the Sea of Marmara — is plankton slime gone rogue. What it is, why it happens, and the climate signal inside.
Dr. Lena Fischer ·
Science10 min read
Ocean Deoxygenation: The Ocean's Breathlessness
The ocean is losing oxygen — measurably and globally. How warming and nutrient stress squeeze marine life's air supply, and what that does to kelp forests.
Dr. Lena Fischer ·
Science10 min read
Ocean Heat Content: How We Measure a Warming Ocean
Over 90 percent of the planet's trapped heat is in the ocean. How we measure ocean heat content, from expendable probes to 4,000 drifting floats — and why it matters.
Dr. Lena Fischer ·
Science8 min read
Tropicalization: When Warm-Water Species Move Into Kelp Country
As oceans warm, tropical herbivores and warm-adapted species are moving poleward into kelp reefs — reshaping forests from Tasmania to Japan. The science of tropicalization.
Dr. Lena Fischer ·
Atlas8 min read
Rhode Island: Kelp on the Southern Edge of New England
Rhode Island's kelp beds were already at their warm limit when the water started heating. What remains — and what was lost — is a preview of New England's future.
Dr. Lena Fischer ·
Science8 min read
El Niño vs a Marine Heatwave: Two Kinds of Warm Water, Two Kinds of Kelp Stress
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 ·
Science9 min read
A Decade of Marine Heatwaves: What the Records Show
From the Blob to the record-breaking 2023–24 ocean, the last decade of marine heatwave records shows extremes growing — and kelp forests in the firing line.
Dr. Lena Fischer ·
Science6 min read
Marine Heatwaves: What They Are and Why They're Rewriting Kelp Coastlines
Marine heatwaves are weeks of anomalously hot ocean that can deforest entire coastlines. Here's the science behind them and what restoration can do.
Dr. Lena Fischer ·
Science8 min read
Why the Ocean Warms Slowly — and Cools Even More Slowly
Why the ocean warms so slowly: heat capacity, thermal inertia and deep mixing hide enormous heat. What the ocean's long lag means for kelp forests and coasts.
Dr. Lena Fischer ·
Science12 min read
How Hot Is Too Hot? The Thermal Limits of Kelp
Every kelp species has a temperature window. Learn the physiology of heat stress, why gametophytes are weakest, and how scientists measure and breed thermal tolerance.
Dr. Lena Fischer ·