Beacham et al: Population structure and stock identification of Oncorhynchus keta 
247 
Population, sample collection years, number of fish sampled per year, and total number of fish sampled for 34 populations of 
chum salmon ( Oncorhynchus keta) in eight geographic regions from Russia. Eight regions have been defined, and populations 
(numbered in brackets) were sampled in each region listed. N = population size. 
Region and population 
Years 
Annual sample size 
N 
1 Primorye 
Narva [11 
1994 
17 
17 
Ryazanovka [2] 
1994 
49 
49 
Avakumovka [3] 
1994 
35 
35 
2 Amur River 
Amur River [4] 
1994, 2001, 2004 
43, 97, 198 
338 
3 Sakhalin Island 
Tym [5] 
1995 
55 
55 
Naiba [6] 
1994, 1995 
50, 99 
149 
Udarnitsa [7] 
1994 
50 
50 
Kalininka [8] 
1994 
49 
49 
4 Magadan 
Tugur [9] 
2004 
98 
98 
Okhota [10] 
2004 
94 
94 
Magadan [11] 
1991 
79 
79 
Tauy [ 12] 
1990 
55 
55 
Ola [13] 
1990, 1992 
80, 40 
120 
5 Northern Sea of Okhotsk 
Oklan [14] 
1993 
76 
76 
Penzhina [15] 
1993 
43 
43 
6 West Kamchatka 
Hairusova [16] 
1990, 1993 
138, 48 
186 
Vorovskaya [17] 
1991, 1993 
79, 170 
249 
Kol [18] 
1991 
79 
79 
Pymta [19] 
1992, 1993 
40, 59 
99 
Kikchik [20] 
1992, 2005 
20, 86 
106 
Utka [21] 
1992 
40 
40 
Bolshaya [22] 
2004 
96 
96 
Plotnikova [23] 
2001 
69 
69 
7 East Kamchatka 
Zhypanova [24] 
2004 
46 
46 
Kamchatka [25] 
1990 
76 
76 
Ivashka [26] 
2005 
48 
48 
Nerpichi [27] 
1992 
39 
39 
Karaga [28] 
2005 
42 
42 
Ossora [29] 
1990, 1996, 2005 
39,41,48 
128 
Dranka [30] 
2005 
44 
44 
Apuka [31] 
2002 
47 
47 
Olutorsky Bay [32] 
2002 
49 
49 
8 Northeast Russia 
Anadyr [33] 
1991, 1992 
79, 15 
94 
Kanchalan [34] 
1991 
79 
79 
60 juM each nucleotide, 0.40 pM of each primer, and de- 
ionized water. The thermal cycling profile involved one 
cycle of 15 minutes at 95°C, followed by 30-40 cycles 
of 20 seconds at 94°C, 30-60 seconds at 47-65°C, and 
30-60 seconds at 68-72°C (depending on the locus). 
Specific PCR conditions for a particular locus could 
vary from this general outline. PCR fragments were 
initially size fractionated in denaturing polyacrylamide 
gels by using an ABI 377 automated DNA sequencer, 
and genotypes were scored by Genotyper 2.5 software 
(Applied Biosystems, Foster City, CA) using an internal 
lane sizing standard. Later in the study, microsatellites 
