Eukaryotic Microbiome of Lake Sturgeon Eggs, and Identification of Chemical Thresholds for Infection Control.

ABSTRACT: Eukaryotic microorganisms are an important, but understudied, component of freshwater aquatic ecosystems, and are significant sources of mortality in early life stages of fishes in natural and aquaculture systems. The eukaryotic microbiome colonizing egg surfaces of the lake sturgeon (Acipenser fulvescens) was characterized from eggs collected in natural stream habitats and a streamside hatchery in the Cheboygan River watershed in MI, USA. The taxonomic diversity of members of the Kingdoms Fungi and Stramenopile associated with infections of lake sturgeon eggs during spawning is contributing to lake sturgeon mortality in the hatchery. Characterization of the microbial communities from deposited eggs demonstrated heavy influence of spawning location on the diversity of Pythium, an Oomycete

SUBMITTER: Gdanetz K 

PROVIDER: S-EPMC12289797 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature