Gut Microbial Composition of Pacific Salmonids Differs across Oregon River Basins and Hatchery Ancestry.

ABSTRACT: The gut microbiome may represent a relatively untapped resource in the effort to manage and conserve threatened or endangered fish populations, including wild and hatchery-reared Pacific salmonids. To clarify this potential, we defined how steelhead trout gut microbiome composition varies across watersheds and as a function of ancestry. First, we measured this variation across watersheds using wild steelhead trout sampled from nine locations spanning three river basins. While gut microbial composition differs across basins, there exist bacterial clades that are ubiquitous across all populations. Correlating the phylogenetic composition of clades with geographic distance reveals 395 clades of bacteria whose ecological distribution implicates their co-diversification with steelheads. Second,

SUBMITTER: Kirchoff NS 

PROVIDER: S-EPMC9144809 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature