Figure 2

Taxonomical community composition of the intestinal microbial community in Atlantic cod. (a) Individual sequence read number per order, illustrated by circle surface area, show a variable microbial community composition. Members from the order Vibrionales are most abundant, followed by those from the orders Bacteriodales, Erysipelotrichales and Clostridiales. The number of reads beloning to particular taxonomic classifications can fluctuate several orders of magnitude among specimens. Overall read number per order for all specimens (% median read number) is given in front of the order name. (b) The number of individual OTUs detected per order (97% sequence similarity), illustrated by circle surface area, show that the taxonomically most diverse orders are not necessarily the most abundant based on the number of sequence reads. The presence of a shared OTU (*) is indicated in front of the order name.