Table 5.
Results of the bioeconomic models for European anchovy and European sardine after the modifications: (1) splitting the dataset into two parts (1985–1999 and 2000–2017) and (2) including landings and first sale prices of the other species as potential explanatory variables
| Response variable (period) | Explanatory variables | Deviance explained (%) | VIF | AC | R2 observed vs predicted |
|---|---|---|---|---|---|
| Anchovy first sale prices | Sardine prices *** | 85.51 | 1.24 | No | 0.87 |
| (1985–1999) | EAs3_cb * | 1.24 | |||
| Anchovy first sale prices | Anchovy landings ** | 56.54 | 1.11 | No | 0.52 |
| (2000–2017) | Sardine landings * | 1.11 | |||
| Sardine first sale prices | Anchovy prices *** | 82.50 | 1.20 | No | 0.83 |
| (1985–1999) | Anchovy landings # | 1.20 | |||
| Sardine first sale prices (2000–2017) | Sardine landings * | 23.57 | - | No | 0.70 |
Asterisks indicate a significance level of 0 (***), 0.001 (**), 0.01 (*), and 0.05 (#)
EAs3_cb summer East Atlantic pattern with 3-year lag and cubed, VIF variance inflation factor, AC autocorrelation