The invention relates to a trough conveyor, which is designed and configured for transporting fish transversely to the longitudinal extent thereof in the transport direction TM, comprising a transport chain which can be rotationally driven and is formed from chain links and has a transport run, which defines the transport plane E1, and a return run, wherein the continuous transport chain is guided about at least two deflection elements, which can be rotated about an axis of rotation Du, for driving and guiding the transport chain, and the transport chain has arranged thereon troughs each intended to receive one fish, which trough conveyor is distinguished in that each trough is arranged on the transport chain so as to be pivotable about an axis of rotation DM extending transversely to the transport direction TM and comprises at least one guide body, and in that at least one guide rail for receiving the guide body and for guiding the same is arranged at least in the transition region Ü from the transport run to the return run, wherein the course of the or of each guide rail in the transition region Ü around the deflection element at least partially differs from the course of the transport chain around the deflection element. The invention further relates to an arrangement and a method for transferring the fish from such a trough conveyor to a downstream transport means.