Figure 8
From: Benefits of the microalgae Spirulina and Schizochytrium in fish nutrition: a meta-analysis
Funnel plot showing the relationship between the SMD and the standard error (inverted scale) for the effects of Schizochytrium replacement on omega-3 fillet content. Each point represents a treatment–control comparison and the dotted vertical line denotes the global SMD under a random effects model. An asymmetric distribution of points outside the funnel might be indicative of publication bias.
