Fig. 3

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NMDS ordination biplot (2d stress = 0.13) based on Bray-Curtis dissimilarity showing variation in NMDS 1 and 2 scores based on the contents of individual rainbow trout stomachs for fish sampled in three different habitats. Each point reflects a single individual, and points located closer together have stomach contents that are more similar than those further away. Significant taxa in the diet (those explaining most of the variance among fish) and their vector loadings are indicated in black. Note the trophic segregation between capture habitats (i.e. lake, river mouth, and river trout all fall into distinct ordination space) and the reduced inter-individual variation shown by lake fish in comparison to the other habitats.

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