Kłyszejko B., Dziaman R., Hajek G., 2001. Effects of electrode placement relative to the cardiac muscle on ECG pattern in carp (Cyprinus carpio L.). Acta Ichthyol. Piscat. 31 (1): 151-158.
Effects of electrode placement on the ECG quality were studied in 200-1500 g individual weight carp. Out of 12 combinations of lead placement relative to the cardiac muscle, 3 were found to produce the most legible, reproducible ECG′s.