Aquaculture sustainability requires a reduction in the reliance on marine-derived raw materials such as fish oil in aquafeeds while maintaining fish health and product quality. This study investigated the effects of replacing fish oil with plant oils supplemented with DHA-rich Schizochytrium limacinum biomass on the gut microbiota of European sea bass (Dicentrarchus labrax). S. limacinum SR21—an oleaginous microalga naturally...

The aquaculture sector has been progressively transitioning toward environmentally sustainable feed production, with insect meals emerging as viable alternatives to fish meal (FM); however, their effects on the microbiota of fish still remain insufficiently characterized. This study examined gut and skin microbiota in rainbow trout ( Oncorhynchus mykiss ) following complete FM substitution with yellow mealworm ( Tenebrio molit...