The intestinal microbiota of lake anchovy varies according to sex, body size, and local habitat in Taihu Lake, China

Abstract

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Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, Gekko japonicus (Schlegel, 1836)

“…However, there are some species, such as the three-spine stickleback Gasterosteus aculeatus, the sea perch Perca fluviatilis [60], and the rice frog Fejervarya limnocharis [61], in which gut microbial alpha diversity is negatively correlated with diet diversity. Gut microbial alpha diversity did not differ between the sexes in G. japonicus, similar to the results reported for a wide range of vertebrates, including fish [62], amphibians [63], birds [58], and mammals [64]. However, sexual differences in gut microbial diversity do exist in many animals, including fish [65], birds [66], and mammals [67].…”

“…The putative gut microbial functions in G. japonicus were mainly related to metabolism at the first function level with a relative abundance > 80%, the metabolism-related function, replication, and repair at the second level, antibiotic, and partial amino acid biosynthesis, and other glycan degradation at the third level with higher relative abundances ( Figure 5 ). Putative gut microbial functions in most animals are closely related to metabolism, including fish [ 62 ], amphibians [ 76 ], reptiles [ 18 ], birds [ 77 ], and mammals [ 19 ]. Therefore, the gut microbiota plays an important role in host energy metabolism.…”

Dietary and Sexual Correlates of Gut Microbiota in the Japa-Nese Gecko, Gekko japonicus (Schlegel, 1836)

“…However, there are some species such as Gasterosteus aculeatus and Perca fluviatilis [59] and Fejervarya limnocharis [60] where gut microbial alpha diversity is negatively correlated with diet diversity. Gut microbial alpha diversity did not differ between the sexes in G. japonicus, similar to the result reported for a wide range of vertebrates including fish [61], amphibians [62], birds [57], and mammals [63]. However, sexual differences in gut microbial diversity do exist in many animals, also including fish [64], birds [65], and mammals [66].…”

“…The gut microbial functions in G. japonicus were mainly related to metabolism at the first function level with a relative abundance > 80%, the metabolism-related function, replication and repair at the second level, antibiotic and partial amino acid biosynthesis, other glycan degradation at the third level with higher relative abundances (Figure 5). Gut microbial functions in most animals are closely related to metabolism, including fish [61], amphibians [75], reptiles [18], birds [76] and mammals [19]. Therefore, the gut microbiota plays an important role in host energy metabolism.…”

A systematic review of advances in intestinal microflora of fish

“…However, the composition of intestinal microflora remains stable after adulthood (58-365 days post-hatching), which corresponds to the changes of intestinal microflora during human development (Faith et al 2013;Li et al 2017b). Moreover, host weight, body size, and gender also affect the structure and composition of host intestinal flora (Jiang et al 2020;Li et al 2016).…”