Table 2 Results of GLM of the effect of environmental variables on spawning in: (a) L. ovalis, (b) R. argyrotaenia and (c) T. tambra. Significant P-values are highlighted by*. OR: Odds ratio. OR = 1: Predictor variable does not affect the odds of response variable occurring. OR > 1: There is higher odds of spawning occurring in response to the predictor variables. OR < 1: There is lower odds of spawning occurring in response to the predictor variables.
From: Year-round spawning of three tropical Cypriniformes fishes in Southeast Asia
Variable | Adjusted OR | 95% interval OR | χ2 stat. (df) | P-value |
|---|---|---|---|---|
(a) L. ovalis | ||||
Sex (male) | 9.960 | (6.731, 14.812) | 149.612 (1) | < 0.0001* |
7-day rainfall | 1.001 | (0.999, 1.004) | 1.637 (1) | 0.072 |
Daily rainfall | 0.999 | (0.978, 1.019 | 0.012 (1) | 0.913 |
Air temperature | 0.78 | (0.619, 1.012) | 4.305 (1) | 0.056 |
Lunar illumination | 0.997 | (0.988, 1.004) | 0.720 (1) | 0.396 |
Photoperiod | 0.412 | (0.167, 1.040) | 3.465 (1) | 0.064 |
(b) R. argyrotaenia | ||||
Sex (male) | 10.489 | (6.302, 18.351) | 107.122 (1) | < 0.0001* |
7-day rainfall | 0.989 | (0.996, 1.001) | 0.824 (1) | 0.364 |
Daily rainfall | 1.005 | (0.993, 1.016) | 0.610 (1) | 0.435 |
Air temperature | 0.845 | (0.683, 1.042) | 2.488 (1) | 0.110 |
Lunar illumination | 1.002 | (0.995, 1.009) | 0.320 (1) | 0.572 |
Photoperiod | 0.403 | (0.141, 1.126) | 3.003 (1) | 0.083 |
(c) T. tambra | ||||
Sex (male) | 65.756 | (16.181, 353.198) | 4.194 (1) | < 0.0001* |
7-day rainfall | 1.000 | (0.991, 1.009) | 0.002(1) | 0.960 |
Daily rainfall | 0.900 | (0.747, 1.007) | 3.217 (1) | 0.073 |
Air temperature | 0.680 | (0.294. 1.514) | 0.902 (1) | 0.342 |
Lunar illumination | 1.001 | (0.978, 1.025) | 0.009 (1) | 0.926 |
Photoperiod | 1.011 | (0.195, 1.682) | 0.001 (1) | 0.980 |
