Ecological Archives A025-086-A7
Shin-Ichiro S. Matsuzaki and Taku Kadoya. 2015. Trends and stability of inland fishery resources in Japanese lakes: introduction of exotic piscivores as a driver. Ecological Applications 25:1420–1432. http://dx.doi.org/10.1890/13-2182.1
Appendix G. Summary of the best-fit generalized linear mixed models for the relationships between cpue changes or stability indices and the predictor variables.
Table G1. Summary of the best-fit generalized linear mixed models for the relationships between cpue changes or stability indices and the predictor variables over 10 (1998–2008), 20 (1988–2008), and 30 (1978–2008) years.
Response variables |
Predictors |
Estimate |
SE |
tvalue |
CPUE changes |
|
|||
Over 10 years |
Intercept |
-0.93 |
0.57 |
-1.64 |
|
FGR of exotic piscivores |
-0.44 |
0.15 |
-3.00 |
|
Lake area |
0.25 |
0.14 |
1.82 |
|
Total phosphorus |
7.34 |
4.35 |
1.69 |
|
(Variances in the random variable and residual were 0.89 and 0.75, respectively) |
|||
|
|
|||
Over 20 years |
Intercept |
1.32 |
0.78 |
1.70 |
|
Lake area |
0.29 |
0.13 |
2.15 |
|
Maximum depth |
-0.01 |
0.00 |
-2.50 |
|
Brackish / freshwater |
-1.33 |
0.51 |
-2.61 |
|
The percent coverage of concrete bank protection |
-0.02 |
0.01 |
-2.11 |
|
FGR of exotic piscivores |
-0.49 |
0.16 |
-2.99 |
|
(Variances in the random variable and residual were 0.80 and 0.76, respectively) |
|||
|
|
|||
Over 30 years |
Intercept |
1.68 |
0.93 |
1.81 |
|
Lake area |
0.32 |
0.16 |
2.03 |
|
Maximum depth |
-0.01 |
0.00 |
-2.67 |
|
Brackish / freshwater |
-1.25 |
0.61 |
-2.05 |
|
The percent coverage of concrete bank protection |
-0.02 |
0.01 |
-1.79 |
|
FGR of exotic piscivores |
-0.59 |
0.20 |
-3.02 |
|
(Variances in the random variable and residual were 1.14 and 0.84, respectively) |
|||
|
|
|||
CPUE stability: CV-1 |
|
|||
Over 10 years |
Intercept |
1.85 |
0.40 |
4.58 |
|
Lake area |
0.26 |
0.08 |
3.25 |
|
Maximum depth |
-0.01 |
0.00 |
-2.59 |
|
Brackish / freshwater |
-0.50 |
0.28 |
-1.76 |
|
FGR of exotic piscivores |
-0.28 |
0.09 |
-2.91 |
|
(Variances in the random variable and residual were 0.29 and 0.49, respectively) |
|||
|
|
|||
Over 20 years |
Intercept |
0.25 |
0.37 |
0.69 |
|
Lake area |
0.25 |
0.06 |
3.84 |
|
Catchment : lake area ratio |
0.17 |
0.10 |
1.80 |
|
FGR of exotic piscivores |
-0.10 |
0.07 |
-1.58 |
|
(Variances in the random variable and residual were 0.20 and 0.31, respectively) |
|||
|
|
|||
Over 30 years |
Intercept |
0.54 |
0.21 |
2.54 |
|
Lake area |
0.19 |
0.05 |
3.65 |
|
Total phosphorus |
3.51 |
1.62 |
2.17 |
|
FGR of exotic piscivores |
-0.11 |
0.05 |
-2.07 |
|
(Variances in the random variable and residual were 0.12 and 0.21, respectively) |
|||
|
|
|||
CPUE stability: SDchange rate |
|
|||
Over 10 years |
Intercept |
-3.68 |
0.32 |
-11.50 |
|
Maximum depth |
0.00 |
0.00 |
2.46 |
|
Brackish / freshwater |
0.48 |
0.24 |
1.98 |
|
FGR of exotic piscivores |
0.20 |
0.08 |
2.54 |
|
(Variances in the random variable and residual were 0.21 and 0.30, respectively) |
|||
|
|
|||
Over 20 years |
Intercept |
-2.72 |
0.23 |
-11.60 |
|
Lake area |
-0.12 |
0.07 |
-1.79 |
|
FGR of exotic piscivores |
0.15 |
0.07 |
2.07 |
|
Maximum depth |
0.00 |
0.00 |
2.23 |
|
(Variances in the random variable and residual were 0.22 and 0.22, respectively) |
|||
|
|
|||
Over 30 years |
Intercept |
-2.49 |
0.10 |
-24.91 |
|
(Variances in the random variable and residual were 0.22 and 0.15, respectively) |