Jigsaw Puzzle : Velella - Planktonic Vessels

Phytoplankton bloom observed by the ocean color sensor MODIS onboard NASA satellite Terra in May 2010. The bloom spreads broadly in the North Atlantic from Iceland to the Bay of Biscay - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

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Sea Urchin - Planktonic Origins
Barely visible to the naked eye, sea urchin larvae grow and transform into bottom-dwelling urchins.

Foraminifera Orbulina universa and mollusk larva (Photo : Fabien Lombard)

Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)

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Colony of diatoms genus Bacillaria whose single cells slide against each other (Video : Sophie Marro)

Dinoflagellate Ceratium furca (Photo : Sophie Marro)

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Phronimes - Monstres des tonneaux
Recyclant salpes et méduses, la femelle phronime construit des tonneaux gélatineux et y élève sa progéniture.

Dinoflagellates Ceratium platycorne var platycorne (Photo : Sophie Marro)

Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. During the austral summer, the amount of chlorophyll a is so low that the water becomes deep blue, almost purple. (Photo : Joséphine Ras)