The author states that it's difficult to examine the exploratory behavior of a free moving fish because the data typically used does not accurately describe the fish's behavior. The EOD geometry and the electric images are complex because they can change based on the fish's movement. The movement changes the source of the electric organs and in laboratory setting the behavior that use electrorepection are hard to maintain preparations for . The difficulty experienced in a control laboratory setting to examine the certain behaviors, makes collecting and analyzing data of a free moving fish ,a challenge .

• Michelle Oriana Gomez-Guevara

Certain marine and aquatic vertebrates have electric organs which allow the organism to produce electric fields ( electrogenesis) .The electric organs of these organisms contain electroreceptors , which provide the organism the ability to sense the electric fields in their environment. The sensory system created by the electroreceptores within these organism results in the electroreception and allows the organism to be better adapted to their underwater and salty environment . http://onlinelibrary.wiley.com/doi/10.1113/expphysiol.1988.sp003144/epdf -Michelle Oriana Gomez-Guevara