PROBLEM TO BE SOLVED: To provide a blending treatment body and a blending treatment method capable of reducing a pressure loss and improving miniaturizing efficiency of a dispersion phase, and additionally, to reduce the electric power consumption of a booster pump, and to provide fluid mixer, a fluid mixing processor, a seafood cultivation system, and a seafood cultivation method.;SOLUTION: By arranging a blending treatment body in a fluid passage (R), in which a plurality of different fluids (F) or a mixing treatment object, a blending treatment body is constituted to form a flat narrow flow passage (Rs), in which a portion of the fluid (F) flows in the fluid passage (R).;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT
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