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Seagrasses and Light in the Chesapeake Bay

Seagrasses growing on the seafloor of the Chesapeake Bay rely on light to...

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Sea Grapes: A Google Earth Tour

“Sea grapes” may sound like something Poseidon would snack on, and not a killer...

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Sea Lion Sickness

Both humans and sea lions get sick from eating fish and shellfish that have been...

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Seagrass and Seagrass Beds

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

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Zooxanthellae and Coral Bleaching

Tiny plant-like organisms called zooxanthellae live in the tissues of many animals,...

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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...