Methods and systems for processing fish are provided which enable the efficient conveyance of fish products from one fish processing subsystem or station to another in a particularly reliable and robust form factor. The systems may include a first fish processing subsystem configured to process fish with the fish orientated in a first orientation; a second fish processing subsystem configured to process the fish with the fish orientated in a second orientation different from the first orientation; and a conveyor system that couples the first fish processing subsystem to the second fish processing subsystem with the conveyor system being configured to receive the fish in the first orientation and deliver the fish in the second orientation. Related methods of conveying and processing fish are also provided.