Fig. 2: 45-year time series of energy transfer efficiency.
From: Anchovy boom and bust linked to trophic shifts in larval diet
Bayesian state space model (a) estimated annual energy transfer efficiency from the base of the food chain up to the larvae. The 1962–1987 and 2005 boom periods are shaded in blue, and the 1988–2003 bust period is shaded in yellow. Red lines indicate maximum posteriori yearly values, while error bands denote the 95% posterior credible intervals of yearly estimates. Maximum a posteriori cross-correlation analysis of (b) autocorrelation function (AFC) at year lag for Energy transfer efficiency ~ Large:Small larval size ratio. Source data are provided as a Source Data file.
