Credit: GERD GUENTHER/SCIENCE PHOTO LIBRARY

Caption: Vorticella ciliates. Light microscope differential interference contrast (DIC) footage of a group of Vorticella peritrich ciliates attached to algae. These sessile microscopic organisms are filter feeders, with rows of cilia and an undulating membrane creating a current of water which directs food particles towards the buccal cavity (mouth opening). Attached with a contractile stalk to their substrate, they can react very fast to any disturbance. Several such contractions are seen in this clip. Magnification: x390 at 10 centimetres across.

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Keywords: alga, algae, aquatic, bell-shaped-animal, biological, biology, ciliate, ciliates, dic, differential interference contrast, fauna, light micrograph, light microscope, light microscopy, nature, peritrich, protist, protozoa, protozoan, reflex, retracting, retraction, sessile, single-celled, unicellular, vorticella, water, zoological, zoology

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Vorticella ciliates

K004/1873 Rights Managed

Downloadable master

Duration: 00:00:54.04

Frame size: 1920x1080

Frame rate: 24

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 2.0G

Original

Capture format: EOS 5D MK2

Codec: Uncompressed 8-bit 4:2:2

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