Marine electric fields and fish orientation.
1. Two methods for short-span measurements of DC electric fields in the sea are described. 2. The results indicate a difference between local electric fields (up to 150 muV/m) caused by bottom structures and regional electric fields (up to 60 muV/m) due to electromagnetic processes. 3. The possible relevance of these phenomena to electro-sensitive fishes is discussed.
D000818:Animals; D004553:Electric Conductivity; D004574:Electromagnetic Fields; D004594:Electrophysiology; D005399:Fishes / Q000502:physiology*; D009068:Movement; D012623:Seawater