Which factor can significantly affect the design of raceway systems in aquaculture?

The species of fish is a critical factor that can significantly affect the design of raceway systems in aquaculture. Different fish species have varying requirements in terms of water quality, temperature, space, and flow rate. For example, some species may require higher oxygen levels or prefer specific ranges of water temperatures, which necessitates adjustments to the design and operation of the raceway system, such as water circulation and aeration methods.

When considering the needs of the species, aquaculture designers must also take into account their growth rates, behavior, and interaction with other species if they are to be mixed in the same system. Additionally, the layout and space provided within the raceway must support the natural swimming patterns and territorial behaviors of the fish. Each of these considerations can lead to significant variations in the raceway's size, shape, and operational strategy, making the species of fish a primary factor in the design process.