Ocean Pulse pp 71-88 | Cite as

Use of Advanced Mixed-Gas Diving Technology to Explore the Coral Reef “Twilight Zone”

  • Richard L. Pyle


Marine environments harbor an enormously diverse array of organisms. S.A. Earle (1991) wrote, “Although fewer species appear to inhabit the ocean than the land, based on numbers of species currently known, consideration solely of numbers of species can be a misleading measure of diversity. At higher taxonomic levels (Class, Phylum, and various subdivisions of these broad categories), marine ecosystems have a significantly higher degree of genetic diversity.... [I]f the presence of individuals representing various broad categories of life are given somewhat greater weight than the splintery ends of diversity known as species, then the greatest diversity of life is unquestionably in the sea.”


Coral Reef Hermatypic Coral Deep Reef Twilight Zone Coral Reef Habitat 
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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Richard L. Pyle
    • 1
  1. 1.Ichthyology Collection, Bernice P. Bishop MuseumHonoluluUSA

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