Model

Dependent variable

Factors used as the candidates to check by

stepwise method

Factors chosen by stepwise method

AIC

1

ln (RPS)

AO, PDO

A₂, A₃, A₄, A₇, P₃, P₄, P₉, P₁₀

−45.1

2

ln (RPS)

AO, PDO, R_sardine (ref), SSB_sardine (ref)

A₂, A₃, A₄, A₆, A₇, P₄, P₉, P₁₀, R_sardine (ref)

−63.75

3

ln (RPS)

AO, PDO, R_sardine, SSB_sardine

A₂, A₃, A₄, A₆, A₇, P₄, P₉, P₁₀, R_sardine

−68.00

4

ln (RPS)

AO, PDO, SSB_bluefin

A₁, A₃, A₆, P₃, P₄, P₆, P₇, P₉, P₁₀, SSB_bluefin

−92.45

5

ln (RPS)

AO, PDO, R_sardine, SSB_sardine, SSB_bluefin

A₁, A₂, A₆, P₄, P₆, P₇, P₉, P₁₀, R_sardine, SSB_bluefin

−93.03

6

ln (RPS)

AO, PDO, R of sardine, SSB_sardine, R_bluefin

A₂, A₃, A₄, A₇, A₉, P₅, P₉, R_sardine, R_bluefin

−116.38

7

ln (RPS)

AO, PDO, R_sardine, SSB_sardine, SSB_bluefin, R_bluefin

A₃, A₈, R_bluefin, SSB_bluefin

−2364.98

8

ln (R)

AO, PDO, R_sardine, SSB_sardine, SSB_bluefin

A₂, A₃, A₆, P₄, P₆, P₇, P₉, P₁₀, R_sardine

−93.96

9

ln (R)

AO, PDO

A₁, A₃, A₆, P₃, P₄, P₆, P₉, P₁₀

−94.44