Jeremy Webster "Fred" Frith (born 17 February 1949) is an English multi-instrumentalist, composer and improvisor.
Probably best known for his guitar work, Frith first came to attention as one of the founding members of the English avant-rock group Henry Cow. Frith was also a member of Art Bears, Massacre and Skeleton Crew. He has collaborated with a number of prominent musicians, including Robert Wyatt, Derek Bailey, the Residents, Lol Coxhill, John Zorn, Brian Eno, Mike Patton, Lars Hollmer, Bill Laswell, Iva Bittová, Jad Fair, Kramer, the ARTE Quartett and Bob Ostertag. He has also composed several long works, including Traffic Continues (1996, performed 1998 by Frith and Ensemble Modern) and Freedom in Fragments (1993, performed 1999 by Rova Saxophone Quartet). Frith produces most of his own music, and has also produced many albums by other musicians, including Curlew, the Muffins, Etron Fou Leloublan and Orthotonics.
Frith is the subject of Nicolas Humbert and Werner Penzel's award-winning 1990 documentary film Step Across the Border. He also appears in the Canadian documentary Act of God, which is about the metaphysical effects of being struck by lightning. Frith has contributed to a number of music publications, including New Musical Express and Trouser Press, and has conducted improvising workshops across the world. Frith's career spans over four decades and he appears on over 400 albums. He still performs actively throughout the world.
Any water in a sea or lake that is neither close to the bottom nor near the shore can be said to be in the pelagic zone. The word "pelagic" is derived from Greek πέλαγος (pélagos), meaning "open sea". The pelagic zone can be thought of in terms of an imaginary cylinder or water column that goes from the surface of the sea almost to the bottom. Conditions differ deeper in the water column such that as pressure increases with depth, the temperature drops and less light penetrates. Depending on the depth, the water column, rather like the Earth's atmosphere, may be divided into different layers.
The pelagic zone occupies 1,330 million km3 (320 million mi3) with a mean depth of 3.68 km (2.29 mi) and maximum depth of 11 km (6.8 mi). Fish that live in the pelagic zone are called pelagic fish. Pelagic life decreases with increasing depth. It is affected by light intensity, pressure, temperature, salinity, the supply of dissolved oxygen and nutrients, and the submarine topography, which is called bathymetry. In deep water, the pelagic zone is sometimes called the open-ocean zone and can be contrasted with water that is near the coast or on the continental shelf. In other contexts, coastal water not near the bottom is still said to be in the pelagic zone.