As ecosystem engineers, crab behaviors not only reflect the physiological state and welfare of individuals but also act as regulators influencing the function and stability of aquaculture systems. However, research on the behavioral responses of cultured crabs to environmental factors remains incomplete, and studies on how their behaviors affect the environment are even more limited. To enhance productivity, welfare, and envir...

Crab fisheries play a crucial role in global fishery economics, but they heavily rely on wild catches. With the decline and exploratory limits of wild populations, expanding the scale and production of aquaculture becomes vital for the sustainability of crab fisheries. The development of crab aquaculture encounters significant dietary challenges, stemming from suboptimal formulated feeds and inefficient feeding management. Lev...

Color preference testing for animals is a prerequisite for optimizing facilities and ensuring animal welfare in aquaculture. Swimming crabs (Portunus trituberculatus) are aggressive, and shelters are often installed in ponds to reduce the high mortality rate caused by their agonistic behavior. To test the preference of juvenile crabs for the color of shelters, this study observes the preferences of crabs for shelters of differ...