of or relating to the stratum of the oceanic zone where enough light is present for photosynthesis to occur.
Origin of epipelagic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of, relating to, or inhabiting the upper zone of the ocean from just below the surface to approximately 100 metres deep
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012