During World War II the U.S. Navy was taking sonar readings of the ocean when they discovered the deep scattering layer (DSL). The DSL was caused by large groupings of organisms that scattered the sonar to create a false or second bottom. The false bottom was shallower during the night and deeper during the day; this was the first recording of diel vertical migration.
Once scientists started to do more research on what was causing the DSL, it was discovered that a large range of organisms were vertically migrating. Most types of plankton and some types of nekton (fish) have exhibited some type of vertical migration, although it is not always diel. These migrations may have substantial effects on mesopredators and apex predators by modulating the concentration and accessibility of their prey (i.e. impacts on the foraging behavior of pinnipeds).
Read more about this topic: Diel
Other articles related to "discovery":
... DCI operates its businesses in four groups Discovery Networks U.S ... Discovery Networks International, Discovery Commerce, and Discovery Education ...
... Discovery Channel, an American TV channel distributed by Discovery Communications Discovery (Irish TV series), the first documentary television series to be broadcast on RTÉ Discovery (1960s ...
... Discovery Commerce operates a catalog and electronic commerce business offering lifestyle, health, science and education-oriented products, as well as products specifically related to programming on ... In addition, the e-commerce site serves as a licensing business that licenses Discovery trademarks and intellectual property to third parties for the purpose ... The Discovery shopping website offers products similar to those previously sold in the Discovery Channel retail stores ...
... Discovery Communications, Inc ... The company started as a single channel in 1985, The Discovery Channel ... programming is offered through DCI's 28 network entertainment brands, including Discovery Channel, Military Channel, TLC, Animal Planet, Discovery Fit Health and a family of ...
... in the United States on June 1, 2002, as Discovery HD Theater ... HD Theater on September 22, 2007, because Discovery Communications launched HD simulcasts of some of its other channels including Animal Planet, Discovery Channel, Science and TLC ...
Famous quotes containing the word discovery:
“The new supplants the old. Yet mens minds are stuffed with outworn bunk. Educating the young in the latest findings of authorities and scholars in the social sciences is important. It is equally important to devise ways and means for aiding the middle-aged and old to reexamine hang-over unscientific doctrines and ideas in the light of recent discovery and research.”
—Mary Barnett Gilson (1877?)
“He is not a true man of science who does not bring some sympathy to his studies, and expect to learn something by behavior as well as by application. It is childish to rest in the discovery of mere coincidences, or of partial and extraneous laws. The study of geometry is a petty and idle exercise of the mind, if it is applied to no larger system than the starry one.”
—Henry David Thoreau (18171862)
“We are all humiliated by the sudden discovery of a fact which has existed very comfortably and perhaps been staring at us in private while we have been making up our world entirely without it.”
—George Eliot [Mary Ann (or Marian)