(from the article `marine ecosystem`) ...which occupies the great bulk of the ocean, is called the aphotic zone (Figure 1). The illuminated region above it is called the photic zone, ... ...or more of the ocean, which is sufficiently illuminated to permit photosynthesis by phytoplankton and plants, is called the euphotic zone. ... [2...
Found on
http://www.britannica.com/eb/a-z/d/56
(L: dis=not; photos=light) the area underneath the euphotic zone. It is so poorly lit that respiration exceeds photosynthesis (80-700m, depending on clarity). eco04.gif.
Found on
http://www.seafriends.org.nz/books/glossary.htm
dysphotic zone, disphotic zone The zone of intermediate light inensity in a body of water, with insufficient light for photosynthesis but sufficient light for behavioral responses.
Found on
http://www.wordinfo.info/words/index/info/view_unit/2786/10
No exact match found.
