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Nausithoe punctata

Nausithoe punctata
Nausithoe punctata
Nausithoe punctata
Nausithoe punctata
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336958
Madin, Laurence
Nausithoe punctata
Still Image
01/07/2009
graphics/Jellyfish/6.jpg
Featured in the Open Ocean Jellies poster, available at the Ocean Science Exhibit Center.
Info from poster:
Probably the most familiar jellies are jellyfish, such as this one--technically called medusae, and belonging to two divisions of the phylum Cnidaria. Jellyfish are predators that use tentacles studded with stinging cells to catch and kill their prey, usually smaller zooplankton or fish. Although jellyfish have a very simple body structure, with no central nervous system, all have evolved efficient ways to catch their food. They swim by jet propulsion, and many are capable of complex migration patterns. In many species, the medusa is a stage that alternates with another form that lives attached to the bottom.
Image of The Day caption:
Probably the most familiar jellies are jellyfish, such as the Nausithoe punctata (above). Jellyfish are predators that use tentacles studded with stinging cells to catch and kill their prey, usually smaller zooplankton or fish. Although jellyfish have a very simple body structure, with no central nervous system, all have evolved efficient ways to catch their food. This species, for example, has symbiotic algae cells in its tissues that provide it with additional nutrition. A poster featuring this and several other open-ocean jellies is available at WHOI's Ocean Science Exhibit Center.
Photo by Laurence Madin
© Woods Hole Oceanographic Institution
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