overview

Seagrass and Seagrass Beds

Seagrasses are found in shallow salty and brackish waters in many parts of the...

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How Mangroves Deal with Saltwater

Looking at a white mangrove (Avicennia marina) leaf cross-section under the...

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Branching Red Algae

Under the microscope, you can peer inside the cells of this filamentous red algae....

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A Diatom Helix

This beautiful marine diatom Chaetoceros debilis was caught in the North Sea. Not...

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Coralline Algae Under the Microscope

Unlike the green, leafy algae we're used to seeing on the seafloor, coralline algae...

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Seagrass with Epiphytes

Broad-leaf seagrass (Posidonia australis) with algae epiphytes grows at Corner...

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Kelp Pennant

"Fronds of giant kelp, buoyed by their gas-filled pneumatocysts, wave like pennants...

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Killer Algae (Caulerpa taxifolia)

A strain of this green seaweed, native to the Indian and Pacific Oceans, escaped...

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Unhealthy Coral Reef, Kiritimi, Line Islands

Algae has overtaken this coral reef off heavily populated Kiritimati, or Christmas...

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Bubble Algae (Ventricaria ventricosa)

Macroscopic algae (Ventricaria ventricosa), also known as "bubble algae" or "sea...

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Macroscopic Algae (Acetabularia crenulata)

Macroscopic Algae (Acetabularia crenulata). More about mangrove ecosystems can be...

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Encrusting Pink Algae and a Seastar

Like pink paint, crustose coralline algae covers the surface of the rock in a thin...