Fig. 4 in Organization of fish assemblages in blackwater Atlantic Forest streams

Fig. 4. RDA ordination biplot of the first and second RDA axes based on fish biomass (g.m-2) of 31 blackwater mesohabitats. Vector lines in bold type indicate the relationship of the environmental variables to the ordination axis; the line's length is proportional to its relative significance. For species codes, see Tab. 3.