Objective] To study the influence of Anthocidaris crassispina enhancement on the behavior of wild shrimps and crabs.[Method] Simulation experiments were carried out in the laboratory.Effects of A.rc assispina enhancement on the behavior of wild shrimps and crabs were researched.[ Result] Penaeus japonicus, Penaeus monodon and Metapenaeus affinis could coexist with A.crassip ina.A.cras ispina had a certain attraction to Penaeus japonicus, but no harm occurred.There were neither behavioral effects nor hazards between Portunus sanguino-lentusand A.crassispin a.Portunus t rituberculatus and Charybdis feriatus might cause some harm to A.crassispina when their quantity was more, but it was not a common phenomenon.[ Conclusion] This research provides references for the biological behavior and develop ecologi-cal risk assessment of A.crassispina enhancement.
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