Abstract: An apparatus for gaining fish meat in pulp form is described. The apparatus comprises a fish filleting machine, a separating device arranged downstream of said filleting machine and comprising a perforated drum and a pressing belt wrapped around a portion of the drum, and a transport apparatus. In order to ensure that the fish enter the straining apparatus in the correct orientation and substantially flat so that the straining apparatus may operate efficiently even when double fillets are produced by the filleting machine, the transport apparatus comprises upper and lower conveying belts which positively engage the fish fillets between them and convey the fillets fixed in the correct orientation.