Puzzle Ocean Seasons : Bloom

analyse la couleur de la lumière - Mer Méditerranée

Surface chlorophyll a concentration in the Mediterranean Sea.

Dinoflagellate Ceratium fusus (Photo : Sophie Marro)

Average chlorophyll concentration in the surface ocean (from mi-September 1997 to August 2007) from the ocean color sensor SeaWiFS (NASA). Subtropical gyres, in the center of the oceanic basins, are characterized by very low concentrations of chlorophyll a (dark blue) - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

Carte bathymétrique de la Mer Méditerranée

Squid larva (Photo : Fabien Lombard)

Instrumented buoy (Photo : David Luquet)

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Salpes - La vie enchaînée
Bien que d’apparence primitive, les salpes sont de proches ancêtres des poissons. Lorsque les algues abondent, les salpes prolifèrent en de longues chaînes d’individus clonés.

Diatom genus Rhizosolenia (Photo : Sophie Marro)

Teaching sheets

Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.

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Pelagia - Fearsome Jellyfish
Mauve jellies move in droves, their nasty stings feared by swimmers.

Siphonophores (Photo : Fabien Lombard)

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Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)

Foraminifera Ruber (Photo : Fabien Lombard)

Instrumented buoy (Photo : David Luquet)

Mollusk (Photo : Fabien Lombard)

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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.