The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
a shoreward part of a shelf, usually having a level surface and in most cases not deeper than 50 or 120 m. The littoral shoal is the zone where waves and currents actively influence the sea bottom.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.