1, different species: Silver carp is a medium-sized fish near the sea, which lives in seawater and will enter salty or fresh water environment, while Siniperca chuatsi is a large freshwater economic fish in the middle and upper layers of fish.

2. Different shapes: Silver carp's body is slender, shaped like a long knife, with small and sharp head, bright eyes, gray-black body, bulging head, big mouth, pointed teeth, wide and flat body, mainly yellow body color, and tiger stripes dotted on it.