From The Crop Circle Ship Wiki
Dolphinograms are a series of formations which appeared in the 1991 crop circle season.
 Water connection
Many Dolphinograms show a symbol for Water in the same design. In the particular example below, notice water in the black box, and then half of a circle to the right of it. This half-circle can be understood as relating to the Water, and therefore indicates that the Water is somehow divided in its connection to the Dolphinogram.
 The spiral
A specific formation (from 1993) shows the Dolphinogram in connection to a spiral pattern, which may be related to the Watersphere and Viktor Schauberger, providing yet another link to Water - although it is not certain this crop circle provides factually useful information.
In the examples, Water is shown in a black box.
 Also see