Table 1 Selected generalized additive models for fish count, weight, and standard-length data as the response variable, and s(hooksize), depth, and quarter as initial explanatory variables for the experimental fishing using various Mustad J-type hooks used on the bottom-set longline (BSLL) gear at the island of Unisan, Province of Guimaras, Philippines from March 2012–January 2013.
|  | Parametric terms Variable = quarter or depth | Approximate significance of smooth terms Variable = s(hooksize) | ||||||
|---|---|---|---|---|---|---|---|---|
| Â | Variable | df | Chi. sq | p-value | edf | Ref. df | Chi. Sq | p-value |
Fish count data | ||||||||
GAM Negative binomial | ||||||||
All Species | Quarter | 3 | 80.73 | < 2e-16 | 3.121 | 3.866 | 41.97 | < 2e-16 |
Nemipteridae | Quarter | 3 | 75.07 | 3.51e-16 | 2.711 | 3.366 | 25.55 | 2.51e-05 |
Nemipterus nematophorus | Quarter | 3 | 46.51 | 4.42e-10 | 2.384 | 2.964 | 13.38 | 0.00352 |
Bycatch | Depth | 2 | 10.99 | 0.0041 | 2.208 | 2.749 | 10.78 | 0.00958 |
Fish weight data | ||||||||
GAM Gamma | ||||||||
All Species | Quarter | 3 | 6.682 | 0.000321 | 3.290 | 4.066 | 5.66 | 0.000329 |
Nemipteridae | Quarter | 3 | 10.33 | 3.95e-06 | 1.752 | 2.18 | 7.252 | 0.000678 |
Nemipterus nematophorus | Quarter | 3 | 8.556 | 3.22e-05 | 1.003 | 1.006 | 4.303 | 0.0404 |
Bycatch | Â | Â | Â | Â | 1.85 | 2.305 | 1.067 | 0.293 |
Individual pooled data forN. nematophorus | ||||||||
GAM Gaussian | ||||||||
Standard Length (mm) | Quarter | 3 | 10.4 | 9.73e-07 | 2.486 | 3.092 | 5.462 | 0.00084 |
Individual Weight (g) | Quarter | 3 | 5.448 | 0.00102 | 2.279 | 2.838 | 2.578 | 0.0447 |
