Age at maturity (m)

Slope of the regression line

Ratio (m/T)

Clockwise or anticlockwise

Corresponding stock

Slope on the SRR

95% confidence Intervals

0

b = 1

0/8 = 0

Clockwise

1

0 < b ≤ 1

1/8 = 0.125

Clockwise

Pacific stock of Japanese sardine

0.764

(0.634, 0.879)

2

b = 0

1/4 = 0.25

Clockwise

3

−1 ≤ b < 0

3/8 = 0.375

Clockwise

4

b = −1

1/2 = 0.5

Anticlockwise

5

−1 ≤ b < 0

5/8 = 0.675

Anticlockwise

6

b = 0

3/4 = 0.75

Anticlockwise

Pacific bluefin tuna

0.211

(−0.048, 0.109)

7

0 < b ≤ 1

7/8 = 0.875

Anticlockwise

8

b = 1

(8 − T)/8 = 0

Clockwise

9

0 < b ≤ 1

(9 − T)/8 = 0.125

Clockwise

Western Arctic bluefin tuna

0.719

(0.478, 0.959)