Aquaman's little known powers

While browsing around the Inter Nets I found this sketch that Neal Adams did of Aquaman that has no context I can figure.
Maybe Neal was demonstrating Aquaman's little known ability to collect refuse for recycling or win a stuffed toy at a carnival by mentally knocking down milk bottles.

"Official DC Cover Artist" Neal Adams drew literally hundreds of great and classic comic covers through the 1970's (they had a startling disconnect to the interior content. Not his fault, mind you). Many of the covers featured Aquaman and others that you can find here at the Grand Comic Database.