Salmon stock
Time range
Sampling frequency (# sample yr-1)/ Nbr. data point δ13C range (‰) δ15N range (‰) δ13C vs δ15N
Kodiak Island 1967-1999 every year (2-5), last annulus only
Red Lake1 n=32 -19.05 – -17.17 8.29 – 11.62 0.22
Upper station n=31 -18.88 – -17.38 8.08 – 10.68 0.57***
SE Alaska 1968-1998 every year (2-5), last annulus only
Chilkoot n=29 -18.92 – -17.43 9.46 – 11.66 0.67***
Chilkat n=29 -19.29 – -17.18 8.43 – 10.64 0.12
Columbia 1986-2016 every year (5)
Okanagan n=31 -18.97 – -17.82 9.68 – 10.96 0.52**
Wenachee n=31 -18.97 – -17.50 9.68 – 11.32 0.57***
BC coast 1960-2016 irregular (18-135)
Rivers Inlet2 n=16 -18.26 – -16.98 9.57 – 11.11 0.02
S Bristol Bay3 1962-2003 every 3rd year (3-5)
Ugashik n=14 -18.13 – -16.98 10.47 – 12.03 0.37
Egegik n=15 -18.21 – -16.75 10.50 – 11.68 0.29
Naknek n=13 -18.04 – -16.79 10.48 – 12.22 0.69**
Kvichak n=11 -18.14 – -17.32 10.99 – 11.88 0.07
N Bristol Bay3 1962-2003 every 3rd year (3-5)
Nushagak n=14 -17.87 – -16.80 10.89 – 12.76 0.06
Wood River n=14 -18.07 – -17.37 11.35 – 12.97 0.29
Igushik n=14 -18.44 – -16.62 10.79 – 12.14 0.16
Togiak n=15 -18.05 – -16.88 11.15 – 12.15 0.57*
NW Pacific 1995-2017 every year (3-5)
Ozernaya n=23 -18.31 – -17.46 10.59 – 11.45 0.24
Kamchatka n=11 -18.33 – -17.39 10.45 – 11.48 -0.01