1 / 5

Light in the Deep Sea

Light in the Deep Sea. Photos courtesy of Heather Austin. marinebio.org. Going down to 2,000 feet in the ocean! Light outside my window…. Video Monitor Screen. 2,000 ft!. 300 ft. 550 ft. Photos courtesy of Heather Austin. What Happens to Light As it Passes Through the Ocean?.

taji
Télécharger la présentation

Light in the Deep Sea

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Light in the Deep Sea Photos courtesy of Heather Austin marinebio.org

  2. Going down to 2,000 feet in the ocean! Light outside my window… Video Monitor Screen 2,000 ft! 300 ft 550 ft Photos courtesy of Heather Austin

  3. What Happens to Light As it Passes Through the Ocean? • Sunlight produces a visible spectrum of the colors: red, orange, yellow, green, blue and violet • These colors combined together appear white • Water absorbs light. • It does this by absorbing the longer (or lower energy wavelengths first) • So…Red gets absorbed first • Blue penetrates deepest • Exception is violet light. It is the shortest wavelength and highest energy BUT it gets scattered by particles in the water. http://www.noc.soton.ac.uk/JRD/SCHOOL/mt/mt001b_2.html

  4. disc.sci.gsfc.nasa.gov

  5. How Do Animals Adapt to Living in Little or No Light? They can… • Counter-illuminate: Animals use light-producing organs on their underside. They increase the light level underneath themselves as they move up into shallower water where they are silhouetted against the sky and dim it as they descend to deeper water. • Bioluminescence to escape predators: Some animals, such as deepwater shrimp, vomit bioluminescent clouds, while some copepods emit bioluminescent clouds from their posterior ends. http://www.tufts.edu/alumni/magazine/fall2007/features/oceans.html http://www.lifesci.ucsb.edu/~biolum/

More Related