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Bioluminescence

Glowing plankton reveal thriving life in the sea

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What it is

Glowing plankton reveal thriving life in the sea

Why it matters

Bioluminescence can strengthen productivity, resilience, or recovery in marine ecosystems. It helps explain how favorable conditions support biodiversity and ecosystem function.

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Related ecoregions

Mediterranean Sea
Ecoregion
Mediterranean Sea
Temperate

The Mediterranean is a mostly enclosed sea with warm, salty waters. In summer it is calm and layered, but in winter storms mix the waters and bring up nutrients. River inflows and upwelling can spark short blooms of life. Because it is cut off from the open ocean, it has many unique species but is very sensitive to change.

California Current
Ecoregion
California Current
Temperate

The California Current runs south along the U.S. West Coast. Winds push surface water away, pulling deep, cold water full of nutrients up to the surface. This “upwelling” fuels blooms of plankton that feed fish, seabirds, and whales. Seasonal changes make it one of the richest seas on Earth.