Credit: FRANK FOX/SCIENCE PHOTO LIBRARY

Caption: Light microscope footage of a rotifer (centre) feeding on the freshwater algae Haematococcus pluvialis. This single-celled algae is known for producing the orange pigment astaxanthin when the cells are stressed, as here. Astaxanthin is an antioxidant and is thought to act as a sunscreen for the cells. The chemical is extracted and widely used in animal feeds, human dietary supplements and some cosmetics. In animal feeds it is used to add an orange or pink colour, for instance to farmed salmon or egg yolks. It has coloured the digestive tract of the rotifer orange here. H. pluvialis cells average around 20 micrometres in diameter, and are the richest natural source of astaxanthin. Despite this, the chemical can still be produced more cheaply from petroleum products.

Release details: Model release not required. Property release not required.

Keywords: alga, algae, animal, antioxidant, astaxanthin, biochemical, biochemistry, biological, biology, black background, botanical, botany, cell, cells, chemical, chemistry, chlorophyta, clip, cosmetic, cosmetics, darkfield, eating, fauna, feed, feeding, film, flora, food, footage, gray, green alga, haematococcus pluvialis, industrial, industry, many, microscope, microscopic, microscopy, motion, multiple, nature, orange, phase, plant, pond life, protection, protective, red, rotifer, rotifera, single-celled, stress, stressed, unicellular, video, wildlife

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.

Rotifer feeding on Haematococcus algae

K006/9435 Rights Managed

Downloadable master

Duration: 00:00:27.12

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 778.3M

Original

Capture format: Canon EOS 5D Mark II

Codec: Apple ProRes 422

Please contact Science Photo Library if you require the original, or other formats.

 

Save watermarked comp

Request un-watermarked file

Price clip Pricing

Please login to use the price calculator