Speculation…on prawn association and bacterioplankton communities…

“speculated association was explained by the constant flow of rearing water through the digestive tract of growing shrimp, which thus influences the composition of gut microflora.”

Could it not be that the gut microfauna in the digestive tract seed the water with shrimp digestive tract bacteria in the continually expelled feces trails. Especially in a closed RAS.

https://www.globalseafood.org/advocate/bacterioplankton-communities-and-their-temporal-dynamics-in-a-biofloc-shrimp-culture-system/

Fish oil replacement but what the prawn need is a fish meal alternative…

https://phys.org/news/2022-07-deep-sustainability-alternative-aquaculture-ingredient.html