Table 2 Overview of the generalized lineal mixed-effect models (GLMMs) fitted to investigate the relationship between diving intensity and day length, and the linear mixed-effect models (LMMs) applied to investigate the correlation between diving depth and depth of the mixed layer. Regression coefficients with 95% CIs are given for the models with the best fit (lowest AIC value)
From: Revealing the full ocean migration of individual Atlantic salmon
Model | Response variable | Predictor variable | Random effects | AIC | Regression coefficient (95% CI) |
|---|---|---|---|---|---|
Null model (GLMM) | Dives per week | – | Intercept | 3168.6 | |
GLMM 1 | Dives per week | Day length | Intercept | 2955.9 | |
GLMM 2 | Dives per week | Day length | Intercept slope | 2946.1 | 0.1 (0.07–0.13) |
Null model (LMM) | Mean weekly diving depth | – | Intercept | 789.5 | |
LMM 1 | Mean weekly diving depth | Mixed-layer depth | Intercept | 707.1 | |
LMM 2 | Mean weekly diving depth | Mixed-layer depth | Intercept slope | 700.1 | 0.29 (0.16–0.42) |