BSCI-3254 Lecture Notes - Lecture 16: Electric Eel, Electric Fish, Electric Organ
28 Nov 2017
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Electric fish: have their own biological batteries; most of these species tend to be freshwater. Knife fish: housing electric organs, fins on the top allow them to swim straight; don"t distort what is around them. Allows them to keep a more even electric field to make it easier for them to detect other electric fields from actual sources: tuberous electroreceptors: for active electroreceptors. Detecting the field of the own fish or the field of another electric fish. They have different frequency characteristics than the other sources that occur more naturally. Tuberous: attuned to the animal"s own electrical fields; Everything that has active also has passive echolocation. If you put two wires in, you can hear a humming noise (buzz --> wave species: minimal overlap of these electric field frequencies. These wave species are attuned specifically to their own frequencies. Same species might be attuned to different frequencies.
