Fig. 7From: Optical measurement of tissue perfusion changes as an alternative to electrocardiography for heart rate monitoring in Atlantic salmon (Salmo salar)A (left): 1. Epigastric vein/artery, 2. Pylorus caeca/lipid deposits, 3. Liver. B (right) 1. Septum transversum, 2. Hepatic arteries/veinsBack to article page