A fishy gut feeling – current knowledge on gut microbiota in teleosts

Summary

This narrative review provides a comprehensive synthesis of existing scientific literature on gut microbiota in teleost fish, a highly diverse vertebrate group of major importance to global aquaculture. The authors, drawing on expertise across Norwegian and Chinese institutions with strong aquaculture research traditions, likely examine how microbial communities are shaped by host species, diet, developmental stage, and rearing conditions, as well as their roles in digestion, immunity, and disease resistance. The review is likely intended to identify knowledge gaps and inform future research directions relevant to sustainable fish production and health management.

UK applicability

While the study is international in scope, the findings are directly relevant to the UK aquaculture sector, particularly salmon and trout farming in Scotland and elsewhere, where gut microbiota management through dietary intervention is an active area of applied research and industry interest.

Key measures

Gut microbial community composition; microbial diversity indices; host–microbiome interactions; dietary and environmental modulators of microbiota; immune and metabolic outcomes associated with gut microbiota

Outcomes reported

The review synthesises current knowledge on the structure, diversity, and functional roles of gut microbiota in teleost fish, likely examining how diet, environment, host genetics, and life stage influence microbial communities. It probably also addresses implications for fish health, immune function, and nutrient utilisation in both wild and farmed contexts.

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