3.6 Microbial taxa and functioning profile significantly
associated with host samples
A comparison between sources in ALDEx2 analysis yielded 166
differentially abundant ASVs (Figure 7, Table S7). A majority of ASVs
were affiliated with Rhodobacteraceae , Flavobacteriaceae ,Rhizobiaceae , Sphingomonadaceae, andCyclobacteriaceae . 126 of the differentially abundant ASVs were
also considered as bacteria indicator taxa. 334 pathways were revealed
as significantly differentiated profiles. Pathways associated with the
cofactor, carrier, and vitamin biosynthesis and degradation of amino
acid and carbohydrate generally occurred more abundant in midgut
samples. Whereas pathways involved in inorganic nutrient metabolism,
amine, and polyamine degradation, and aromatic compound degradation were
more likely to be found in seawater samples (Figure 8, Table S8).
Functional pathways distinguished between sources but not sites (Figure
S5, Table S9).