The Letter 'M':  Marine Debris  Marine Protected Areas and Special Places web section  Marine Protected Areas: 3-Part Series in Surfrider's MAKING WAVES. Article I, Article II, and Article III  Meander: A rounded or 's'-shaped bend or curve in a stream or river. Meanders are formed by the dynamics of the free-flowing water, and meandering rivers and streams usually occur in alluvial areas with very low gradients. *     *     *     SURFRIDER and the SURFRIDER LOGO are registered service marks of Surfrider Foundation Copyright © 2002 Surfrider Foundation All rights reserved