Reference,River,L,Muscle δ13C,Muscle δ15N,Mucus δ13C,Mucus δ15N,Fin δ13C,Fin δ15N
eel_1,Frome,320,-29.20,12.90,-27.98,12.52,-28.41,13.36
eel_2,Frome,270,-28.24,12.75,-27.83,12.35,-28.36,12.83
eel_3,Frome,250,-26.65,13.17,-26.65,12.47,-26.78,13.52
eel_4,Frome,210,-28.50,12.34,-28.28,12.64,-28.48,12.59
eel_5,Frome,193,-31.60,10.40,-31.27,9.95,-31.60,11.05
eel_6,Frome,147,-31.28,12.07,-30.49,11.35,-30.87,12.23