Free Access
Table 2
Explanatory variables included in the Gamma-GLM model tested in deviance reduction for selection.
| Standardizing variable | Model parameter | Category levels | Category definitions | Model deviance reduction (greater than 1%) | |
|---|---|---|---|---|---|
| Statistical effects | |||||
| Year | Y | 15 | 1991–2015 | Yes | |
| Month | M | 7 | June–December | No | |
| Sub-regions | A | 4 | Refer to Figure 1 | Yes | |
| Fishing effects | |||||
| Vessel power | P | Continuous | From 40 to 818 KW | Yes | |
| 11 | Truncated each 50 KW | Yes (higher than continuous) | |||
| Vessel length | L | Continuous | From 5 to 35 m | No | |
| 9 | =<15 m; 16–29 m; >= 30 m | Yes (higher than Power) | |||
| Mesh size | MS | Continuous | from 45 to 300 mm | No | |
| 5 | Truncated each 20 mm : =<60 mm; 80 mm; 100 mm; 120 mm; >=140 mm | No | |||
| Oceanographic and environmental effects | |||||
| Ocean depth | D | Continuous | from 0 to 5000 m | No | |
| 10 | from 0 to 5000 m at each 500 m. | Yes | |||
| Sea surface temperature | SST | Continuous | from 11 to 25°C | Yes | |
| 12 | =<12; 13 to 22; >=23°C | Yes (higher than continuous) | |||
| Sea floor gradient | SFG | Continuous | from 0 to 362 | No | |
| 8 | Truncated each 40 m | No | |||
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.