Les Diatomées - Bacillaria - mon océan et moi

Rosette for collecting seawater samples

Phytoplankton bloom observed in the Barents Sea (North of Norway) in August 2010 by the ocean color sensor MODIS onboard NASA satellite Aqua. Changes in ocean color result from modifications in the phytoplankton composition and concentration. The green colors are likely associated with the presence of diatoms. The shades of light blue result from the occurrence of coccolithophores, phytoplankton organisms that strongly reflect light due to their chalky shells - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

Ciliate (Photo : Fabien Lombard)

Underwater glider (Photo : David Luquet)

Jellyfish Rhizostoma pulmo (Photo : Fabien Lombard)

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Illustration in synthesized images of the seasons of the ocean: a year from the Arctic - Animation Clement Fontana

Trimaran of INSU

Teaching sheets

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Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.

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Diatoms - Life in glass houses
Champions of photosynthesis, these unicellular organisms appeared at the time of dinosaurs.They produce a quarter of the oxygen we breathe.

Acantharia (Photo : Fabien Lombard)

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Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.

Annelid worm (Photo : Fabien Lombard)

Squid larva (Photo : Fabien Lombard)

Siphonophores Forskalia formosa (Photo : Fabien Lombard)

Surface chlorophyll a concentration in the global ocean.

Jellyfish Aequorea aequorea (Photo : Fabien Lombard)

Crab larva (Photo : Fabien Lombard)