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Table 6 Estimated percentage of the samples of returning adults of known origin that are apportioned back to proximate river and region of capture using ONCOR.

From: Genetic stock identification of Atlantic salmon (Salmo salar) populations in the southern part of the European range

Test Sample ID

Test Sample

Capture Method

Sample Size

a) Allocation to river of capture

b) Assignment to river of capture

c) Allocation to pooled river of capture

d) Assignment to pooled river of capture

e) Allocation to region of capture

f) Assignment to region of origin

T1

Lune

(2004-05)

Estuary Net

49

26.70

(2.17, 34.35)

28.57

(0.79, 0.48-0.98)

49.41

(12.8, 55.9)

53.01

(0.87, 0.51-1.00)

77.72

(45.53, 81.91)

81.63

(0.93, 0.53-1.00)

T2

Ribble

2004

Estuary Net

50

20.96

(1.64, 29.30)

22.00

(0.86, 0.59-1.00)

37.94

(3.2, 42.3)

40.00

(0.83, 0.48-1.00)

80.39

(45.86, 83.39)

82.00

(0.96, 0.56-1.00)

T3

Dee

(1984-88)

Estuary Net

47

8.30

(0.00, 18.47)

8.51

(0.84, 0.55-1.00)

15.02

(0.0, 27.2)

17.02

(0.72, 0.34-1.00)

34.81

(18.11, 58.01)

34.04

(0.89, 0.55-1.00)

T4

Tamar

1987

Estuary Net

62

41.66

(11.03, 47.89)

41.94

(0.85, 0.28-1.00)

57.08

(25.1, 64.7)

65.08

(0.85, 0.39-1.00)

77.22

(48.23, 81.76)

80.65

(0.93, 0.53-1.00)

T5

Mudeford

2006

Estuary Net

47

81.24

(42.15, 89.13)

93.30

(0.79, 0.52-1.00)

88.50

(57.2, 95.9)

89.36

(0.96, 0.57-1.00)

98.47

(91.61, 1.00)

97.87

(1.00, 0.96-1.00)

T6

Aven+

2005

Rod Caught

37

42.78

(8.0, 61.0)

40.54

(0.90, 0.52-1.00)

43.12

(8.3, 60.0)

40.54

(0.89, 0.52-1.00)

92.00

(75.18, 98.60)

91.89

(1.00, 0.98-1.00)

T7

Narcea

2006

Rod Caught

112

37.25

(22.7, 51.9)

39.29

(0.86, 0.51-1.00)

28.73

(14.3, 42.0)

28.57

(0.85, 0.47-0.99)

97.04

(91.02, 99.55)

96.43

(1.00, 0.97-1.00)

Mean

   

36.98

39.16

45.69

47.65

79.66

80.64

  1. Estimates are given as: a) apportionment to correct river of capture, allocate and sum method (95% confidence intervals); b) assignment to river of capture (and, for those fish successfully assigned back to river of capture, the average and range for the probability of individual assignment is given in brackets); c) apportionment to pooled river of capture, i.e. the pool and allocate method (95% confidence intervals); d) assignment to pooled river of capture (and, for those fish successfully assigned back to river of capture, the average and range for the probability of individual assignment is given in brackets); e) as the sum of apportionment to all samples within a reporting region (95% confidence intervals); and f) as the sum of assignment to all samples within a reporting region (average and range for the probability of individual assignment). The geographical location of each test sample is given in Fig. 1; see Table 1 for full sample details (incl. latitude and longitude).
  2. +A sample from the Aven (47°48'6" N, 3°44'7" W) was not included in the baseline, therefore values relate not to river of capture, but to another proximate river in Brittany, NW France, the Scorff.